How Reddit Citations Changed in Gemini for High-Stakes Investing, Retirement, Mortgage and Financial Consumer Decisions

LLM Authority Index Research | High-Stakes Consumer Decisions | Investing, Retirement, Mortgage and Financial Decisions | Gemini | July-September 2026

Reddit's direct citation visibility in Gemini declined across high-stakes investing, retirement, mortgage and related financial questions between July and September 2026, but the platform started from a much lower Reddit baseline than ChatGPT, Perplexity or Google's AI search surfaces.

On the balanced 11-vertical financial panel, Reddit's share of visible Gemini citation events fell from 1.07% to 0.91%, a 15.3% relative decline. The percentage of eligible Gemini responses containing at least one Reddit citation fell from 1.62% to 1.08%, a 33.0% relative decline.

The stricter matched-prompt test points in the same direction but with small absolute counts. Across 206 exact prompt-plus-Gemini scenarios observed at both endpoints, 7 scenarios lost Reddit, 2 gained Reddit, 0 retained Reddit and 197 cited Reddit in neither month.

Matched Reddit response coverage therefore fell from 3.40% to 0.97%, a 71.4% relative decline.

The matched loss-to-gain ratio is 3.5 to 1. The exact two-sided McNemar result is p = 0.1796875, which does not cross a conventional 0.05 significance threshold.

That statistical result matters because Gemini's Reddit baseline is small. Seven losses and two gains point in the same direction as the aggregate endpoint decline, but the matched evidence is not strong enough to treat Gemini as another Perplexity-style collapse.

The broader three-month Gemini financial source market reinforces the low-base interpretation. Across 1,743 eligible Gemini responses, Reddit was cited in 19 responses, or 1.09%, and generated 19 of 2,402 public-facing citation events, approximately 0.79% of the cleaned citation pool.

Reddit ranked #27 overall in the three-month Gemini financial source market despite appearing across 10 of the 11 financial source labels.

Its monthly rank moved from #13 in July to #81 in August and then #31 in September.

That is a highly volatile pattern rather than a clean month-by-month collapse.

Important: This study measures visible citations in a defined high-stakes commercial query panel. It does not measure hidden model training data, private retrieval signals or recommendation causality. A visible Reddit citation does not prove that Reddit caused a lender, brokerage, adviser, exchange, mortgage provider, gold dealer or investment product to be recommended.

Answer Capsule

Did Reddit lose citation visibility in Gemini for high-stakes investing, retirement, mortgage and financial decisions from July to September 2026? Yes, but from a low baseline. Reddit's balanced Gemini citation-event share fell from 1.07% to 0.91%, down 15.3%, while response citation coverage fell from 1.62% to 1.08%, down 33.0%. In the strict matched panel, 7 of 206 scenarios lost Reddit while 2 gained it, reducing matched coverage from 3.40% to 0.97%. The exact McNemar result is p = 0.1796875, so the matched imbalance is directionally negative but not independently statistically significant. Reddit ranked #27 across the full three-month Gemini financial source market.

Key Findings

• Balanced Reddit citation-event share in Gemini fell from 1.07% in July to 0.91% in September, down 15.3%.
• Balanced Reddit response citation coverage fell from 1.62% to 1.08%, down 33.0%.
• The strict matched Gemini panel contained 206 exact prompt-plus-platform scenarios.
• Matched outcomes: 7 losses, 2 gains, 0 persistent Reddit citations and 197 neither-month scenarios.
• Matched Reddit response coverage fell from 3.40% to 0.97%, down 71.4%.
• The matched loss-to-gain ratio was 3.5 to 1.
• The exact two-sided McNemar result is p = 0.1796875.
• Across the full three-month Gemini financial slice, Reddit was cited in 19 of 1,743 responses, or 1.09%.
• Reddit generated 19 of 2,402 public-facing citation events, approximately 0.79%.
• Reddit ranked #27 overall across the three-month Gemini financial source market.
• Reddit's monthly rank moved #13 in July, #81 in August and #31 in September.
• Reddit appeared across 10 of the 11 financial source labels, giving it broad category breadth despite low response-level frequency.
• The Gemini financial source market contained 523 registrable cited domains and 2,341 domain-response appearances.
• 83 myactivity.google.com entries were excluded from the public publisher ranking.
• Money.com dominated the source market at 13.02% response coverage, followed by Bankrate and Forbes at 4.99% each.
• Only 38 of Gemini's financial Top 100 also appeared in Gemini's broader High-Stakes Consumer Decisions Top 100.
• Gemini showed the smallest measured Reddit endpoint event-share decline among platforms with a nonzero July Reddit baseline in this family.
• The matched decline is much larger in percentage terms than the aggregate decline because the matched Reddit counts are very small.

Questions This Study Answers

• Was Reddit a major direct citation source in Gemini for high-stakes financial decisions?
• Did same-prompt matched testing show more Reddit losses than gains?
• How can broad Gemini studies rank Reddit highly while a financial category study ranks it only #27?

Why This Research Belongs in Daily AI Search Marketing Decisions

Article 62 isolates one source, Reddit, inside one platform, Gemini, and one commercial decision family, Investing, Retirement, Mortgage and Financial Decisions. Its operating value comes from separating a low-base aggregate decline from the strength of the strict matched evidence.

1. Was Reddit a major direct Gemini source in this financial decision family?
2. Did Reddit decline from July to September on the balanced endpoint?
3. Did the same-prompt panel independently confirm a statistically significant decline?

Across the full three-month Gemini financial source study, Reddit ranked #27 overall at 1.09% response citation coverage. It appeared in 19 of 1,743 eligible responses and generated 19 of 2,402 public-facing citation events, about 0.79% of the cleaned event pool.

Its monthly rank was highly volatile rather than steadily declining: #13 in July, #81 in August and #31 in September.

The balanced 11-vertical endpoint moved lower. Reddit citation-event share fell from 1.07% to 0.91%, down 15.3%, while response citation coverage fell from 1.62% to 1.08%, down 33.0%.

The strict matched panel points in the same direction but is less conclusive. Across 206 exact prompt-plus-Gemini scenarios, Reddit produced 7 losses, 2 gains, 0 persistent citations and 197 neither-month scenarios. Matched coverage fell from 3.40% to 0.97%, down 71.4%, but the exact two-sided McNemar result is p = 0.1796875.

That distinction matters commercially. The strongest defensible conclusion is low-frequency deterioration with high volatility, not a Perplexity-style collapse. The aggregate panel declined, but the matched loss-gain imbalance does not cross a conventional 0.05 significance threshold.

For publishers, percentage changes should always be shown beside raw counts when the baseline is small. For lenders, mortgage companies, investment platforms, financial institutions and CMOs, Gemini should be tracked as its own source environment rather than blended with Google's AI search surfaces or other LLMs.

The surrounding Gemini financial source market is concentrated but only moderately persistent. Its Top 100 account for 72.7% of domain-response appearances, and the Top 10 account for 27.8%, yet only 46 domains remained in the monthly Top 100 across July, August and September. Median monthly Top 100 Jaccard similarity was 42.9%.

Category specialization is substantial. Only 38 of Gemini's financial Top 100 domains also appear in Gemini's broader High-Stakes Consumer Decisions Top 100, a 23.5% Jaccard similarity. The final financial child-study Top 100 lists show Gemini sharing 60 domains with Google AI Mode, 59 with Google AI Overviews, 43 with Perplexity, 41 with ChatGPT and 26 with Microsoft Copilot.

The broader Investing, Retirement, Mortgage and Financial Citation Authority Study reports 66.7% median monthly Top 100 persistence, 28.2% frozen median cross-platform Top 100 portability, and an approximate 38.5 percentage-point Persistence-Portability Gap. It also reports 19 domains appearing in all six platform Top 100 lists.

There is an important versioning note. Recomputing portability from the final six child-study Top 100 lists produces about 27.4%, while the frozen parent study reports 28.2%. Article 62 should continue using the published 28.2% parent value for the PPG until the full financial family is rerun through one consolidated pipeline.

The Persistence-Portability Gap framework helps interpret Article 62 correctly. Category-level financial source authority is more persistent over time than universally portable across engines, while Gemini's own financial source market rotates more quickly. Article 62 should not create a Gemini-specific gap by subtracting 42.9% temporal persistence from one pairwise platform overlap because those comparison structures are different.

Gemini also requires source-surface cleanup. The supporting source study excludes 83 myactivity.google.com account-activity entries from the public publisher ranking. Those account-activity URLs should not be interpreted as independent publisher authority.

Citation visibility should remain separate from brand mentions, recommendation rate, rank, sentiment, citation-recommendation coupling and downstream business outcomes. A visible Reddit citation does not prove that Reddit caused Gemini to recommend a lender, brokerage, adviser, mortgage provider, exchange, gold dealer or investment product.

Commercial Action Matrix: What Publishers and CMOs Can Do With the Findings

Need company- or vertical-specific tracking? Publishers and companies can contact LLM Authority Index for individual vertical research, recurring AI citation tracking and company-level reporting. The research service does not sell rankings, inclusion or recommendation placement.

Where Article 62 Fits in the High-Stakes Consumer Decisions Corpus

Article 62 is a child analysis of two parent studies:

• the Investing, Retirement, Mortgage and Financial Reddit decline study, which provides the balanced family endpoint, matched platform comparison and broader replacement analysis; and
• the Gemini Investing, Retirement, Mortgage and Financial source study, which provides the surrounding three-month source market, including Reddit's #27 aggregate rank and 1.09% response coverage, 46 domains present in all three monthly Top 100s and 42.9% median monthly Top 100 persistence.

The platform-level context comes from the overall Gemini Top 100 study. The broader interpretation comes from the 2026 AI Citation Authority Study, the overall Reddit decline study, the cross-platform citation-overlap study, the citation-drift study, and the Persistence-Portability Gap framework. Those studies answer different questions and should not be collapsed into one visibility score.

The Core Finding: Gemini's Reddit Event Share Declined From a Low Baseline

Questions This Section Answers

• How large was the July-to-September aggregate decline?
• Did both event share and response coverage move downward?
• Why does the low starting baseline matter?

The balanced endpoint covers all 11 investing, retirement, mortgage and financial source verticals in the family.

Both measures decline.

But the baseline is materially lower than on several other platforms.

A source that begins near 1% event share can produce large relative percentage swings from only a handful of citation changes.

That is why Gemini should not be described with the same language as Perplexity, where the matched panel fell from 7.24% coverage to zero and recorded 16 losses with no gains.

The Gemini result is better described as low-frequency deterioration with high volatility.

The Strict Matched Test Found Seven Reddit Losses and Two Gains

Questions This Section Answers

• What happened when the exact prompt and Gemini platform were held constant?
• How many matched scenarios gained Reddit by September?
• Was the loss-gain imbalance statistically significant?

The strict matched analysis requires the same normalized prompt on the same Gemini platform family to have one eligible analytical observation in July and one in September.

206 scenarios met that contract.

Matched Reddit response coverage moved from 7 / 206 = 3.40% in July to 2 / 206 = 0.97% in September.

That is a 71.4% relative decline.

The loss-to-gain ratio is 3.5 to 1.

For the nine discordant pairs, the exact two-sided McNemar result is p = 0.1796875.

The result is directionally consistent with the larger balanced endpoint, but it is not statistically significant at a conventional 0.05 threshold.

The absolute counts should remain visible whenever the percentage decline is reported.

Why the Matched Percentage Decline Looks Much Larger Than the Aggregate Decline

Questions This Section Answers

• How can aggregate event share fall only 15.3% while matched coverage falls 71.4%?
• Does that mean one analysis is wrong?
• Which denominator should a financial marketer use?

The two analyses answer different questions.

The balanced aggregate endpoint asks:

Across the full comparable Gemini financial panel, what share of citations and responses involved Reddit in July versus September?

The matched analysis asks:

Among exact prompt-plus-Gemini scenarios available at both endpoints, did Reddit persist, disappear or newly appear?

Those are different denominators.

The matched panel is smaller and contains very few Reddit-positive scenarios.

Moving from seven Reddit-positive matched July scenarios to two September gains creates a large relative percentage change even though only nine scenarios are discordant.

The aggregate panel contains a much broader response population and therefore moves less sharply.

Both views are useful.

The aggregate panel describes the wider source environment.

The matched panel tests source persistence under tighter prompt control.

Reddit Ranked Only #27 Across the Full Three-Month Gemini Financial Source Market

Questions This Section Answers

• How important was Reddit relative to Gemini's leading financial sources?
• Did Reddit's broad-web reputation carry into this category?
• Which domains led Gemini financial citations?

The three-month Gemini financial source market contains 1,743 eligible responses, 2,402 public-facing citation events, 523 cited registrable domains and 2,341 domain-response appearances.

The leading sources were:

Reddit was cited in 19 responses and produced 19 citation events.

Money.com appeared in 227 responses, or more than eleven times as many as Reddit.

That source hierarchy is materially different from broad all-topic Gemini rankings.

Reddit Had Broad Financial Breadth but Low Citation Frequency

Questions This Section Answers

• Did Reddit appear across many financial verticals?
• Can a source have broad category breadth without high response coverage?
• Why does breadth matter separately from rank?

Reddit appeared across 10 of the 11 financial source labels in the Gemini source study.

Only a small number of domains had comparable breadth.

Money.com and Forbes also appeared across 10 of 11 source labels, while YouTube appeared across nine.

But Reddit's broad vertical presence did not translate into high response-level frequency.

Its overall response coverage was only 1.09%.

That distinction matters.

A source can have broad category reach while appearing only occasionally in each vertical.

For brands, breadth and frequency should therefore be tracked separately.

Reddit's Monthly Rank Was Highly Volatile

Questions This Section Answers

• Did Reddit fall continuously month by month?
• How much did its Gemini financial rank move?
• Why is the pattern better described as volatility than a smooth decline?

Reddit's monthly rank moved sharply:

The pattern is not monotonic.

Reddit fell sixty-eight positions between July and August, then recovered fifty positions by September.

That partial September recovery is important.

The balanced July-to-September endpoint is still lower than July, but the monthly sequence does not support a simple straight-line collapse narrative.

Gemini's Reddit role appears unstable and low-frequency, not steadily disappearing.

Gemini's Financial Source Market Was Highly Category-Specific

Questions This Section Answers

• How different was Gemini finance from Gemini overall?
• Would a platform-wide Top 100 capture the right financial publishers?
• Which specialists over-indexed?

Only 38 of the financial Top 100 domains also appeared in Gemini's broader High-Stakes Consumer Decisions Top 100.

That is a major category effect.

The financial source study also identified several specialists with strong category lift, including:

• Kraken
• Schwab
• Fidelity
• Ledger
• StockBrokers.com
• NYSSBDC
• Bitcoin Foundation

Gemini's financial Top 100 is therefore not simply the broad Gemini source leaderboard applied to finance.

For earned media and AEO strategy, category-specific source mapping is necessary.

Specialist Sources Can Lead Narrow Financial Buyer Journeys

Questions This Section Answers

• Can a specialist outperform broad publishers inside one vertical?
• Which examples stand out in the Gemini source study?
• What does that imply for financial outreach?

Gemini's financial source hierarchy changes substantially by product category.

Examples from the source study include:

• Bankrate leading Mortgage and Mortgage Refinance.
• Kraken leading Crypto Exchanges.
• StockBrokers.com leading Online Stock Brokers.
• Catalina Structured Funding leading Structured Settlements.
• Money.com leading several broader financial decision verticals.

That means a mortgage lender, crypto exchange, stock broker, annuity company and structured-settlement provider should not rely on the same publisher strategy.

The relevant source map is the one surrounding the exact commercial prompts that matter to the product.

Gemini's Reddit Decline Was Much Smaller Than Perplexity or ChatGPT

Questions This Section Answers

• How did Gemini compare with the other platforms?
• Which platforms showed the steepest Reddit losses?
• Why should financial teams avoid one blended AI source score?

The parent financial Reddit study shows substantial platform divergence.

Gemini has the smallest event-share decline among the five platforms with a nonzero July Reddit baseline.

That does not mean Reddit was stable.

Response coverage still fell 33.0%, and the matched subset produced 7 losses against 2 gains.

But Gemini's absolute Reddit footprint was already much smaller than on ChatGPT, Perplexity or Google's AI surfaces.

What Appeared When Reddit Disappeared?

Questions This Section Answers

• Did one source replace Reddit in Gemini?
• Can the seven Gemini matched losses be attributed to a single publisher?
• What does the broader family replacement analysis show?

This Gemini child article does not claim that one publisher replaced Reddit in the seven matched Gemini loss scenarios.

The parent financial study examined 200 Reddit-loss scenarios across all tracked platforms.

The most common newly appearing September sources were:

No domain appeared in a majority of Reddit-loss scenarios.

These are all-platform family results, not a Gemini-only replacement table.

For Gemini specifically, the defensible matched result is seven losses and two gains.

Why Broad Gemini Research Can Still Rank Reddit Near the Top

Questions This Section Answers

• Does this category-specific result conflict with broad Gemini source research?
• Why can Reddit rank highly broadly but only #27 in finance?
• Which methodology differences matter?

The Gemini source study cites Ahrefs' September 2026 research covering more than 3 million U.S. queries across broad topics.

That broad Gemini research places Reddit among the platform's leading sources.

This financial study ranks Reddit only #27.

Those results do not conflict.

The query populations are different.

A broad all-topic dataset includes many question types where Reddit may be much more useful than it is for mortgages, robo-advisors, annuities, structured settlements, gold dealers or financial advisers.

The metrics also differ.

Ahrefs uses its own mention-share framework, while this study reports response citation coverage and citation-event share.

Source: Ahrefs: The 50 Most-Cited Websites in Gemini

Tinuiti's Research Also Shows Category and Platform Matter

Tinuiti's Q3 2026 AI Citation Trends Report compares citation behavior across multiple AI systems and commercial categories.

Its public findings emphasize that source behavior changes by both platform and category.

The Tinuiti methodology and category mix differ from this Gemini financial study, so its percentages should not be treated as direct benchmarks.

The methodological conclusion is consistent:

AI source visibility should be measured within the platform and commercial category that actually matters.

Source: Tinuiti: Q3 2026 AI Citation Trends Report

Machine Relations Also Shows Why One Gemini Source Model Should Not Be Universalized

The Gemini source study cites Machine Relations' September 2026 research as additional context on platform-specific source behavior.

External measurement systems can capture different query sets, source surfaces and citation mechanics.

For that reason, this article does not claim that its 1.09% Reddit response coverage is a universal Gemini citation rate.

It is the measured rate for this frozen high-stakes financial corpus.

Source: Machine Relations: Machine Relations Index Report, September 23, 2026

Which Financial Verticals Are Represented?

The source family contains 11 vertical labels:

1. Annuities
2. Crypto Exchanges
3. Crypto Wallets
4. Gold IRAs and Precious Metals Dealers
5. Mortgage
6. Mortgage Refinance Lenders
7. Online Financial Advisors
8. Online Stock Brokers
9. Reverse Mortgage
10. Robo-Advisors
11. Structured Settlements

These are preserved source-dataset labels.

They are not claims that all 11 are statistically independent industries.

Related exports can share prompts, and exact repeated observations are controlled under the analytical anti-double-counting rule.

How This Study Relates to the Parent Financial Reddit Study

The parent investing, retirement, mortgage and financial study found that Reddit's balanced all-platform citation-event share fell from 4.95% to 3.31%, a 33.1% relative decline.

Balanced response citation coverage fell from 15.05% to 9.64%, down 36.0%.

Gemini's event-share decline was smaller at 15.3%.

Its response coverage decline was similar in direction at 33.0%.

The all-platform matched study found 200 Reddit losses and 53 gains.

Gemini contributed 7 losses and 2 gains across 206 matched scenarios.

Gemini therefore participated in the broader decline, but from a much lower baseline and with far fewer Reddit-positive matched cases than ChatGPT, Google AI Mode or Google AI Overviews.

How This Study Is Different

This article narrows the broader financial Reddit research to one platform, one high-stakes family and one three-month research period.

It combines:

1. a 1,743-response Gemini investing, retirement, mortgage and financial source slice;
2. a balanced 11-vertical July-to-September endpoint;
3. a 206-scenario exact matched prompt-plus-Gemini test;
4. both citation-event share and response citation coverage;
5. a three-month source market containing 523 registrable cited domains;
6. monthly Reddit rank movement from #13 to #81 to #31;
7. explicit treatment of 83 myactivity.google.com technical entries;
8. comparison with broad Gemini research from Ahrefs;
9. comparison with Tinuiti's platform and category findings; and
10. source-behavior context from Machine Relations.

The narrow research question is:

How stable was Reddit as a directly cited source in Gemini for consequential investing, retirement, mortgage and related financial consumer decisions from July through September 2026?

Why AI Citation Studies Can Disagree

Questions This Section Answers

• Why can broad Gemini research show Reddit as a major source while this financial study ranks it #27?
• Why can matched coverage decline much more than aggregate event share?
• What should financial marketers compare before using an external benchmark?

Query population

Broad all-topic Gemini datasets include many categories where Reddit may be more frequently useful.

Time period

A pooled quarter-wide source ranking and a July-to-September endpoint comparison answer different questions.

Denominator

Citation-event share, response citation coverage and mention share are not interchangeable.

Low baseline

Gemini starts with a low Reddit citation baseline in this financial family, making relative percentage changes sensitive to small count movement.

Category specialization

Mortgages, crypto, stock brokers, robo-advisors, gold dealers and structured settlements have different specialist source ecosystems.

Technical-source cleanup

The Gemini financial study excludes 83 myactivity.google.com account-activity entries from the public publisher ranking.

Prompt matching

The strict paired test requires the same normalized prompt and Gemini platform at both endpoints.

Prompt weighting

The panel is not weighted by mortgage volume, assets under management, search volume, CPC, revenue, lead value or conversion probability.

The correct question is therefore not:

"What is Reddit's universal Gemini citation rate?"

The useful question is:

What did Reddit citation visibility look like for this platform, this financial decision population, this time period and this measurement definition?

Methodology

Source archive

This study uses the frozen July-September 2026 LLM Authority Index High-Stakes Consumer Decisions corpus underlying the investing, retirement, mortgage and financial source studies and the parent Reddit decline analysis.

Platform filter

Only observations assigned to the Gemini platform family are included.

Category filter

Observations are included when their source membership belongs to the Investing, Retirement, Mortgage and Financial Decisions family.

Raw and screened Gemini financial sample

The related source study reports:

• 2,193 raw Gemini observations
• 181 explicit extraction failures
• 1,743 eligible deduplicated responses
• 2,402 public-facing citation events after infrastructure filtering
• 523 registrable cited domains
• 2,341 domain-response appearances
• 83 myactivity.google.com exclusions

Exact analytical repeat handling

Exact analytical repeats are controlled using the project's documented repeat logic so duplicate observations do not inflate source coverage.

Prompt normalization

Matched prompt text is normalized using Unicode NFKC normalization, case folding, whitespace collapse and trimming.

Domain normalization

Citation URLs are parsed to hostname, lowercased, stripped of leading www where applicable and consolidated to registrable domain using Public Suffix List logic.

Reddit identification

Reddit is identified at the registrable-domain level as reddit.com.

Public technical exclusions

The Gemini financial public ranking excludes 83 citations to myactivity.google.com, a Google account-activity surface rather than a substantive publisher page.

Citation-event share

Reddit citation-event share = Reddit citation events / all eligible public citation events

Response citation coverage

Reddit response citation coverage = eligible responses citing Reddit at least once / all eligible responses

Reddit counts no more than once per response for this metric.

Balanced endpoint

The July-to-September endpoint uses all 11 financial source verticals in the parent family comparison.

Reddit event share moves from 1.07% to 0.91%.

Reddit response coverage moves from 1.62% to 1.08%.

Matched prompt-plus-platform test

The strict matched Gemini panel contains 206 scenarios.

The contingency table is:

• both July and September cite Reddit: 0
• July cites Reddit, September does not: 7
• July does not cite Reddit, September cites Reddit: 2
• neither month cites Reddit: 197

Matched response coverage falls from 3.3981% to 0.9709%.

The exact two-sided McNemar p-value is 0.1796875.

Three-month source-market context

Across the full three-month Gemini financial source slice:

• Reddit appears in 19 responses
• Reddit response citation coverage is 1.0901%
• Reddit generates 19 citation events
• Reddit accounts for approximately 0.7910% of public citation events
• Reddit spans 10 financial source verticals
• Reddit ranks #27 overall
• Reddit's monthly rank moves #13 → #81 → #31

Limitations

1. The study covers one frozen three-month research period and should not be treated as a permanent Gemini rule.
2. The prompt panel is designed for research comparability and high-stakes commercial relevance, not search-volume-weighted market share.
3. Visible citation does not prove recommendation causality, hidden retrieval influence or training-data use.
4. Reddit's Gemini counts are small, so relative percentage changes can be unstable.
5. The strict matched panel contains only nine discordant Reddit scenarios, limiting statistical power.
6. The exact matched p-value does not cross a conventional 0.05 significance threshold.
7. Three-month aggregate coverage can conceal substantial monthly movement.
8. Domain-level aggregation hides page-level source differences.
9. Technical-source cleanup can make denominators differ from raw citation exports.
10. Gemini behavior can vary by geography, personalization, account state, model version, retrieval configuration and product rollout.
11. The all-platform replacement table should not be interpreted as a Gemini-only replacement analysis.
12. External studies use different query populations, dates, markets, metrics and collection systems.

Commercial Disclosure

LLM Authority Index is affiliated with CiteWorks Studio and related AI-search research and services. This research documents observed AI citation behavior.

Commercial relationships do not alter the frozen source corpus, platform filter, category filter, matching contract or published denominators.

No company can purchase a ranking, recommendation, score or position in this study. Citation visibility should not be interpreted as an endorsement by LLM Authority Index or Google Gemini.

References

1. LLM Authority Index: The 2026 AI Citation Authority Study
2. LLM Authority Index: The Most-Cited Websites in AI for High-Stakes Investing, Retirement, Mortgage and Financial Consumer Decisions
3. LLM Authority Index: Reddit's Decline in AI Citations for High-Stakes Investing, Retirement, Mortgage and Financial Consumer Decisions
4. LLM Authority Index: The 100 Most-Cited Websites in Gemini for High-Stakes Investing, Retirement, Mortgage and Financial Consumer Decisions
5. LLM Authority Index: The Persistence-Portability Gap
6. LLM Authority Index: The 100 Most-Cited Websites in Gemini for High-Stakes Consumer Decisions
7. Ahrefs: The 50 Most-Cited Websites in Gemini, September 2026
8. Tinuiti: Q3 2026 AI Citation Trends Report
9. Wellows: AI Citation Patterns Across Social Platforms, Jan-Feb 2026

Related LLM Authority Index Research

Corpus foundation and measurement framework

• 2026 AI Citation Authority Study
• Overall Reddit Citation Decline Study
• Cross-Platform Citation Overlap Study
• AI Citation Drift Study
• Overall Gemini Top 100 Study
• Persistence-Portability Gap Framework

Investing, retirement, mortgage and financial source-market branch

• All-Platform Financial Citation Authority Study
• Google AI Overviews Financial Citation Sources
• Google AI Mode Financial Citation Sources
• ChatGPT Financial Citation Sources
• Perplexity Financial Citation Sources
• Gemini Financial Citation Sources
• Microsoft Copilot Financial Citation Sources

Financial Reddit-trend branch

• Financial Reddit Decline Parent Study
• Google AI Overviews Reddit Trend
• Google AI Mode Reddit Trend
• ChatGPT Reddit Trend
• Perplexity Reddit Trend
• Gemini Reddit Trend
• Microsoft Copilot Reddit Trend