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

LLM Authority Index Research | Google AI Overviews | Investing, Retirement, Mortgage and Financial Decisions | July-September 2026

Reddit remained one of the most visible citation sources in Google AI Overviews for high-stakes financial questions during the July-September 2026 research window, but its direct citation visibility declined.

Across the full three-month Google AI Overviews financial source slice, Reddit ranked #1 in July, #4 in August and #4 in September by response citation coverage. Full-panel coverage moved from 17.61% in July to 16.47% in August and 14.90% in September. Reddit citation-event share also moved lower, from 5.33% to 4.46% to 4.09%.

The locked platform endpoint published in the parent financial Reddit study shows the same direction. Reddit citation-event share fell from 5.37% to 4.10%, a 23.5% relative decline, while response citation coverage fell from 17.66% to 14.82%, a 16.1% decline.

The strict matched result is also negative. In the locked parent-study Google AI Overviews subset, 671 prompt-plus-surface scenarios were paired between July and September. Reddit disappeared in 60 and newly appeared in 22, a 2.73-to-1 loss-to-gain ratio. Matched response coverage fell from 20.72% to 15.05%.

Answer Capsule

Reddit citation visibility declined in Google AI Overviews for high-stakes investing, retirement, mortgage and financial decisions from July to September 2026, but the decline was materially smaller than the declines observed in ChatGPT and Perplexity. On the locked platform endpoint, Reddit citation-event share fell 23.5%, from 5.37% to 4.10%, while response citation coverage fell 16.1%, from 17.66% to 14.82%. In the locked matched panel, 671 scenarios were paired: Reddit remained cited in 79, disappeared in 60, newly appeared in 22, and was absent in 510. The exact two-sided McNemar p-value is approximately 0.0000323.

Key Findings

• Reddit ranked #1 in Google AI Overviews financial citations in July, then #4 in August and September.
• Full-panel response coverage moved from 17.61% to 16.47% to 14.90%.
• Full-panel Reddit event share moved from 5.33% to 4.46% to 4.09%.
• The locked platform endpoint shows Reddit event share falling from 5.37% to 4.10%, a 23.5% decline.
• Locked response citation coverage fell from 17.66% to 14.82%, a 16.1% decline.
• The locked strict matched set contained 671 scenarios: 79 both, 60 losses, 22 gains, and 510 neither.
• Matched response coverage fell from 20.72% to 15.05%, down about 27.4%.
• Reddit was 2.73 times more likely to disappear than to newly appear among discordant matched scenarios.
• The exact two-sided McNemar test gives p ≈ 0.0000323.
• In the fresh Google AI Overviews vertical audit, 9 of 10 verticals with measurable July Reddit event share declined, while all 10 measurable verticals declined in response coverage.
• Structured Settlements had no captured Reddit citation events at either endpoint in the platform-specific audit.
• The sharpest event-share declines were Annuities (-43.7%), Robo-Advisors (-35.2%), Reverse Mortgage (-34.7%), Online Stock Brokers (-29.8%), and Crypto Wallets (-27.9%).
• Mortgage Refinance Lenders was the only measurable vertical with higher Reddit event share in September, but its response coverage still fell 19.1%.
• In the 60 matched Reddit-loss scenarios, no single source replaced Reddit. Google.com newly appeared in 20.0%, Money.com and Investopedia in 16.7% each, and YouTube and Yahoo in 10.0% each.

Questions This Study Answers

• How much did Reddit citation visibility change in Google AI Overviews for high-stakes financial decisions from July to September 2026?
• Does the decline remain when the same prompt and Google AI Overviews surface are paired?
• Which financial verticals and replacement sources changed most as Reddit visibility fell?

Why This Research Belongs in Daily AI Search Marketing Decisions

Article 49 isolates one source, Reddit, inside one surface, Google AI Overviews, and one commercial decision family, Investing, Retirement, Mortgage and Financial Decisions. That narrow design makes the study useful for day-to-day AI search marketing because it separates measurements that are often collapsed into one visibility score:

1. Where does Reddit rank inside the Google AI Overviews financial source market?
2. How often is Reddit actually cited, measured both as citation-event share and response citation coverage?
3. Does the same prompt-plus-surface scenario keep or lose Reddit over time?

In the three-month Google AI Overviews financial source study, Reddit still ranked #3 overall at 16.3% response citation coverage. That aggregate position can coexist with meaningful current-month deterioration: Reddit ranked #1 in July, #4 in August and #4 in September, while full-panel response coverage fell from 17.61% to 16.47% to 14.90% and citation-event share fell from 5.33% to 4.46% to 4.09%.

The locked endpoint points in the same direction. Reddit citation-event share fell 23.5%, from 5.37% to 4.10%, while response citation coverage fell 16.1%, from 17.66% to 14.82%. In the locked matched set, 60 scenarios lost Reddit while 22 gained it, a 2.73-to-1 loss-to-gain ratio, and matched coverage fell from 20.72% to 15.05%, about a 27.4% decline.

For publishers, that means a strong three-month aggregate rank should not be presented as proof that current visibility is stable. For financial brands and CMOs, it means source strategy should be monitored with a fixed prompt panel, a defined platform surface, and separate rank, coverage, event-share, and matched-loss metrics.

The vertical audit strengthens that operating case. Among the 10 verticals with measurable July Reddit event share, 9 declined, and all 10 measurable verticals declined in response coverage. Annuities fell 43.7% in event share, Robo-Advisors 35.2%, Reverse Mortgage 34.7%, Online Stock Brokers 29.8%, and Crypto Wallets 27.9%. Mortgage Refinance Lenders moved higher in event share while still losing response coverage. That exception is exactly why event share and response coverage should not be merged into one KPI.

The platform comparison is equally important. The locked parent financial study reports Reddit citation-event share changes of -74.6% in ChatGPT, -23.5% in Google AI Overviews, -22.9% in Google AI Mode, -15.3% in Gemini, -87.0% in Perplexity, and no measurable Reddit event share in Microsoft Copilot at either endpoint. One blended 'Reddit visibility in AI' score would hide those differences.

This result also belongs inside the broader Investing, Retirement, Mortgage and Financial Citation Authority Study. The frozen parent analysis reports 66.7% median monthly Top 100 persistence, 28.2% 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.

The Google AI Overviews financial source study is more persistent within its own surface: 78 domains remained in the monthly Top 100 across July, August and September, and the median monthly Top 100 Jaccard similarity was 75.4%. Its Top 100 also shared 83 domains with Google AI Mode, or 70.9% Jaccard similarity. Those are useful platform-category context measures, but Article 49 should not subtract one pairwise Google overlap from one temporal persistence statistic to manufacture a separate Persistence-Portability Gap. The comparison structures are different.

The Persistence-Portability Gap framework therefore helps interpret Article 49 correctly: a source market can retain a persistent core over time while an important individual source loses share, and source authority can still transfer poorly across the broader platform set.

There is also a frozen-version distinction that should remain visible. Article 07 reports 28.2% median cross-platform portability, while recomputing the final child-study Top 100 lists produces about 27.4%. The published 28.2% remains the authoritative parent value until the entire financial family is rerun through one consolidated pipeline. Article 49 should not silently mix the versions.

Citation visibility should remain separate from brand mentions, recommendation rate, rank, sentiment, citation-recommendation coupling, and downstream business outcomes. This study measures the visible source layer. It does not establish that a Reddit citation caused a lender, adviser, exchange, publisher, mortgage company, investment platform, or product recommendation.

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

Where Article 49 Fits in the High-Stakes Consumer Decisions Corpus

Article 49 is a child analysis of two parent studies:

• the Financial Reddit decline study, which provides the locked cross-platform financial endpoint and matched counts; and
• the Google AI Overviews Financial source study, which provides the surrounding three-month Google AI Overviews source market, including Reddit's #3 aggregate rank and 16.3% response coverage, 78 domains present in all three monthly Top 100s, and 75.4% median monthly Top 100 persistence.

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.

What We Studied

This article is the Google AI Overviews platform-specific extension of the broader Reddit decline study for high-stakes investing, retirement, mortgage and financial consumer decisions.

The underlying Google AI Overviews financial source study contains:

The 11 source vertical labels are:

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

All 11 verticals were represented in both July and September. Unlike the insurance series, no vertical had to be removed from the endpoint because of a missing July source dataset.

The Core Finding: Reddit Declined on the Locked Google AI Overviews Financial Endpoint

Questions This Section Answers

• Did Reddit lose both event share and response coverage?
• How large was the platform-specific decline?
• Was the decline smaller than the all-platform family decline?

Yes. Both Reddit metrics declined on the locked Google AI Overviews endpoint.

The parent financial Reddit study reported a 33.1% all-platform decline in Reddit citation-event share. Google AI Overviews declined less sharply than the family aggregate because the family also contains platforms such as ChatGPT and Perplexity, where Reddit visibility fell much faster.

The direct record-level reconstruction from the frozen corpus produces nearly the same Google AI Overviews endpoint direction and magnitude. This child article preserves the published parent endpoint so the research series remains internally consistent.

Commercially, the result is best described as weakening rather than disappearance. Reddit remained a major source in the September Google AI Overviews financial source market even after losing share and rank.

Reddit Fell Across the Full Three-Month Google AI Overviews Financial Panel

Questions This Section Answers

• Was September an isolated decline or part of a three-month pattern?
• Did Reddit lose rank as its coverage fell?
• How does the descriptive monthly panel compare with the locked endpoint?

The full monthly panel also trends lower:

The monthly pattern is gradual rather than abrupt. Reddit response coverage fell about 1.1 percentage points from July to August, then about 1.6 points from August to September.

The rank movement is more visible. Reddit moved from #1 in July to #4 in August and September, showing that the source market shifted around Reddit even while it remained highly visible in absolute terms.

The locked parent endpoint is the authoritative cross-article comparison because it preserves the published methodology and denominators. The full monthly panel is presented as a platform-specific descriptive audit from the frozen corpus.

The Strict Matched-Prompt Test Shows Nearly Three Losses for Every Gain

Questions This Section Answers

• Did Reddit decline when prompt wording and raw platform surface were held constant?
• How many matched scenarios lost Reddit compared with gains?
• Was the directional imbalance statistically meaningful inside this sample?

The locked Article 29 Google AI Overviews matched panel contains 671 scenarios:

Reddit losses outnumbered gains 60 to 22, a 2.73-to-1 imbalance.

Matched Reddit response coverage fell from 20.72% to 15.05%, approximately a 27.4% relative decline.

The exact two-sided McNemar test gives p ≈ 0.0000323. Within this matched sample, the loss-gain imbalance is inconsistent with a simple 50/50 turnover process. The statistical test does not identify the reason Reddit disappeared from a response.

A direct record-level reconstruction produces 678 unambiguous pairs because of a small difference in the later child-study matching implementation. It produces the same 60 losses and 22 gains. This article preserves the published 671-scenario parent panel for series consistency.

The Platform-Specific Vertical Audit Shows Broad but Uneven Decline

Questions This Section Answers

• Did every financial vertical decline inside Google AI Overviews?
• Which topics had the largest Reddit losses?
• Which topic moved against the event-share trend?

The platform-specific audit is broad but not perfectly uniform.

Among the 10 verticals with measurable July Reddit event share, 9 declined and one increased. All 10 measurable verticals declined in response coverage. Structured Settlements had no captured Reddit citations at either endpoint in this platform-specific slice.

The median measurable event-share change was -26.3%, while the median measurable response-coverage change was -20.1%.

The steepest event-share declines were:

1. Annuities: 2.58% to 1.45%, down 43.7%.
2. Robo-Advisors: 10.24% to 6.63%, down 35.2%.
3. Reverse Mortgage: 2.51% to 1.64%, down 34.7%.
4. Online Stock Brokers: 5.45% to 3.83%, down 29.8%.
5. Crypto Wallets: 5.83% to 4.20%, down 27.9%.

Mortgage Refinance Lenders moved against the event-share trend, rising from 2.18% to 2.44%, an 11.7% increase. But its Reddit response coverage still fell from 7.38% to 5.97%, down 19.1%. That difference illustrates why event share and response coverage should be reported separately.

Gold IRAs and Precious Metals Dealers was comparatively stable, with event share down 7.9% and response coverage essentially flat, down about 0.5%.

The platform-specific conclusion is therefore not that every vertical declined on every metric. It is that Reddit visibility weakened across most financial topics, including every measurable vertical on the response-level coverage metric.

What Appeared When Reddit Disappeared?

Questions This Section Answers

• Did one source consistently replace Reddit?
• Which domains appeared most often in Reddit-loss scenarios?
• Does the evidence support a single replacement-source strategy?

No single source replaced Reddit across the 60 matched scenarios where Reddit appeared in July but not September.

Google.com was the most common newly appearing domain, but it appeared in only 20.0% of Reddit-loss scenarios. Money.com and Investopedia each appeared in 16.7%, while YouTube and Yahoo each appeared in 10.0%.

The replacement mix spans broad financial publishers, video, search-owned sources, investment specialists, and crypto-specific sources. That pattern supports source redistribution, not a one-for-one substitution.

For a brand, the practical implication is that replacing a Reddit strategy with one publisher target would be too narrow. The more defensible approach is to identify which source classes gain visibility inside each high-value prompt cluster.

Platform Differences: Google AI Overviews Declined Much Less Than ChatGPT and Perplexity

Questions This Section Answers

• Was the Reddit decline similar across AI platforms?
• How did Google AI Overviews compare with ChatGPT, Google AI Mode and Perplexity?
• Why should financial teams report source visibility by platform?

The parent financial study shows large platform differences:

Google AI Overviews declined by about one quarter on event share, compared with roughly three quarters in ChatGPT and nearly nine tenths in Perplexity.

The matched tests show the same platform divergence. Google AI Overviews had 60 losses vs. 22 gains, compared with 38 vs. 4 in ChatGPT, 79 vs. 25 in Google AI Mode, and 16 vs. 0 in Perplexity.

A single blended Reddit visibility KPI would obscure those differences. Financial brands, publishers, mortgage companies, exchanges, advisers and investment platforms should treat platform as a first-class reporting dimension.

What This Means for Financial Brands and CMOs

Questions This Section Answers

• Should financial brands stop investing in Reddit?
• What should replace a single-source authority strategy?
• Which metrics should CMOs track next?

1. Do not treat Reddit as a fixed AI citation channel

Reddit remained a major Google AI Overviews source, but both its event share and response coverage declined. Source visibility should be treated as dynamic.

2. Track platform-specific exposure

Google AI Overviews was much more stable than ChatGPT or Perplexity. Blended reporting can hide a severe loss on one platform behind relative stability on another.

3. Build a portfolio of third-party authority

The Reddit-loss scenarios redistributed across Google, Money.com, Investopedia, YouTube, Yahoo, Forbes, The Wall Street Journal, crypto specialists and first-party platforms. That argues for diversified earned authority rather than one replacement target.

4. Separate citations from recommendations

Visible citation does not prove recommendation causality. Track citations, brand mentions, recommendation frequency, sentiment, comparison placement and company-owned content visibility as separate measures.

5. Manage at the prompt-cluster level

Robo-Advisors, Reverse Mortgage, Annuities and Crypto Wallets changed at different rates. Budget and editorial strategy should map to the commercial questions that matter most to the business rather than to one category-wide average.

What This Means for Financial Publishers

Reddit's decline creates opportunity, but not automatic transfer.

A publisher can use this research to identify where Google AI Overviews is changing its source mix and where editorial, research, comparison, educational or specialist content may have room to gain visibility. The source-change data does not imply that any one content format guarantees citation.

For publishers selling advertising, research, sponsorship or data partnerships, a defensible commercial story can focus on:

• which financial verticals cite the publisher;
• which high-intent prompt clusters produce citations;
• how visibility changes month to month;
• whether the publisher appears in Reddit-loss scenarios;
• whether visibility persists across Google AI Overviews, AI Mode, ChatGPT and other engines; and
• whether company mentions and recommendations move alongside source visibility.

The defensible claim is measured citation visibility, not "AI trusts us" or "our citation caused the recommendation."

How This Study Relates to Prior Reddit and Financial AI Research

Independent research is directionally consistent with a gradual Reddit decline in Google AI Overviews, but the exact percentages are not directly comparable.

PromptWatch measured Reddit's share of Google AI Overviews citations moving from about 2.37% in early July to 2.10% in mid-August 2026, an 11.3% relative decline. It observed no single break point on Google AI Overviews, unlike the much sharper ChatGPT change. Article 49 shows the same gradual direction over a different population and longer window: full-panel Reddit event share moved 5.33% to 4.46% to 4.09%, while the locked endpoint declined 23.5%. The magnitudes should not be merged because the prompt populations, dates, denominators and collection systems differ.

Ahrefs' September 2026 broad U.S. Google AI Overviews leaderboard ranked Reddit #2 at 18.5% mention share, behind YouTube at 22.9%. That broad all-topic prominence can coexist with Reddit ranking #3 at 16.3% response coverage across this three-month financial source study and #4 at 14.90% coverage in September. Ahrefs uses a broad U.S. all-topic query universe and a mention-share denominator, while Article 49 uses high-stakes investing, retirement, mortgage and financial prompts and reports response citation coverage plus citation-event share.

BrightEdge's August 2026 finance analysis found a much steeper citation-presence curve on Google AI Overviews than on ChatGPT. Its leading Google AI Overviews finance source appeared in roughly 51% of tracked prompts, compared with 18% at rank five. BrightEdge measured a different finance prompt set and does not provide a Reddit-specific longitudinal trend in that study. The relevant agreement is structural: financial source concentration and source hierarchy differ materially by engine.

Tinuiti's Q3 2026 citation research reports that most tracked AI platforms were at or near Q3 highs in overall social citation share, with Perplexity as a notable exception. That broader social-source movement can coexist with a Reddit-specific decline because the social category and one social domain are different measurements. Tinuiti also emphasizes that source mix changes by platform and category.

Taken together, the outside research strengthens the case for measurement discipline, not a universal Reddit narrative. The defensible comparison is direction, platform specificity, population and methodology, not decimal-point equivalence across unrelated panels.

How This Study Is Different

This study narrows the broader Reddit trend research to one platform, one high-stakes commercial family, and one fixed three-month window.

It combines:

1. a 4,129-response Google AI Overviews financial source slice;
2. a locked July-to-September Google AI Overviews endpoint;
3. a 671-scenario locked matched prompt-plus-surface test;
4. both citation-event share and response citation coverage;
5. a fresh 11-vertical platform-specific audit from the frozen source corpus; and
6. a matched Reddit-loss source redistribution audit.

The question is narrow and commercial: how stable was Reddit as a directly cited source in Google AI Overviews for consequential financial consumer decisions during this quarter?

Why AI Citation Studies Can Disagree

Two studies can report different Reddit trends without either one necessarily being wrong.

Query population

Mortgage, investing, retirement and crypto questions are not representative of the entire web. Reddit's role can differ in software, travel, entertainment, troubleshooting or general informational queries.

Platform surface

Google AI Overviews can behave differently from Google AI Mode, ChatGPT, Gemini, Perplexity or Microsoft Copilot.

Denominator

Citation-event share and response citation coverage measure different things. A source can lose event share while coverage moves less, or vice versa.

Time window

A short product change and a three-month endpoint comparison answer different questions.

Prompt weighting

This study does not weight prompts by search volume, media spend, assets under management, loan value, conversion probability or revenue.

Matching contract

The locked parent matched panel contains 671 Google AI Overviews scenarios. The later record-level child reconstruction yields 678 unambiguous pairs under its implementation, while preserving the same 60 losses and 22 gains. This article uses the published parent denominator for cross-series consistency and discloses the reconstruction difference rather than silently merging the two.

Domain and infrastructure handling

Domains are consolidated at the registrable-domain level and known technical endpoints are excluded from publisher-level analysis. A small difference in how missing-URL records are handled can alter event counts without materially changing direction.

The useful conclusion is not that one universal Reddit citation percentage exists. Citation visibility is conditional on platform, category, prompt set, time period, denominator and collection method.

Verticals Covered

The Google AI Overviews financial study covers all 11 family verticals:

• Annuities
• Crypto Exchanges
• Crypto Wallets
• Gold IRAs and Precious Metals Dealers
• Mortgage
• Mortgage Refinance Lenders
• Online Financial Advisors
• Online Stock Brokers
• Reverse Mortgage
• Robo-Advisors
• Structured Settlements

All 11 were present at both July and September endpoints.

Methodology

Source archive

This study uses the frozen July-September 2026 LLM Authority Index archive underlying the financial citation-source study and the parent financial Reddit decline study.

Eligibility

A record is eligible when it is:

• in July, August or September 2026;
• assigned to the Google AI Overviews platform family;
• associated with the Investing, Retirement, Mortgage and Financial Decisions family; and
• not explicitly marked as an extraction failure.

Exact-repeat anti-double-counting

An observation is treated as an exact analytical repeat when all of the following match:

• report month;
• exact raw platform/source surface;
• normalized prompt text; and
• exact set of original citation URLs.

One analytical record is retained while source-dataset memberships are preserved for vertical analysis.

Prompt normalization

Prompt text is normalized with Unicode NFKC normalization, case folding, whitespace collapse and trimming.

Domain normalization

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

Infrastructure exclusions

Known technical or navigation endpoints are excluded from public publisher analysis. For Google AI Overviews, records with a usable publisher root domain can still contribute to domain-level analysis even when the exported URL is missing.

Reddit identification

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

Citation-event share

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

A response can contribute more than one Reddit citation event if multiple eligible Reddit URLs appear.

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.

Locked endpoint

The headline Google AI Overviews endpoint figures are preserved from Article 29, the parent financial Reddit trend study.

Locked matched prompt-plus-surface test

The headline matched panel is also inherited from Article 29. It contains 671 scenarios, with 79 both, 60 losses, 22 gains, and 510 neither.

Vertical audit

The vertical table is recalculated directly from the frozen record-level corpus under the newer child-study implementation. It is reported separately from the locked parent endpoint.

Replacement-source audit

For matched scenarios where Reddit appeared in July but not September, the analysis identifies registrable domains present in September but absent from the paired July citation set. Newly appearing domains can co-occur, so the table is not a mutually exclusive attribution model.

Limitations

1. The study covers one frozen three-month research window and should not be treated as a permanent platform rule.
2. Prompt sets are research panels, not search-volume-weighted market-share samples.
3. Visible citation does not prove recommendation causality, hidden retrieval influence or training-data use.
4. The study measures captured public-facing sources and cannot observe every internal retrieval step.
5. Vertical labels are source dataset labels and are not necessarily statistically independent markets.
6. Some small verticals have limited endpoint Reddit counts, which can make relative percentage changes volatile.
7. The parent matched panel and later child reconstruction use slightly different matching implementations. The published parent denominator is retained for cross-series consistency.
8. Newly appearing September domains are descriptive co-occurrences, not proven substitutes for Reddit.
9. Platform behavior can change after the research window.

Commercial Disclosure

LLM Authority Index is affiliated with CiteWorks Studio and related AI-search research and services. This research is designed to document observed AI citation behavior. Commercial relationships do not alter the frozen source corpus, eligibility rules, matching logic 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 by the AI platform being measured.

References

1. LLM Authority Index. The 2026 AI Citation Authority Study: Which Websites Does AI Cite for High-Stakes Decisions? https://llmauthorityindex.com/resources/research/2026-ai-citation-authority-study-high-stakes-consumer-decisions
2. LLM Authority Index. The Most-Cited Websites in AI for High-Stakes Investing, Retirement, Mortgage and Financial Consumer Decisions. https://llmauthorityindex.com/resources/research/most-cited-websites-ai-investing-retirement-mortgage-financial-high-stakes-consumer-decisions
3. LLM Authority Index. Reddit's Decline in AI Citations for High-Stakes Investing, Retirement, Mortgage and Financial Consumer Decisions. https://llmauthorityindex.com/resources/research/reddit-ai-citation-decline-investing-retirement-mortgage-financial-high-stakes-consumer-decisions
4. LLM Authority Index. The 100 Most-Cited Websites in Google AI Overviews for High-Stakes Investing, Retirement, Mortgage and Financial Consumer Decisions. https://llmauthorityindex.com/resources/research/top-100-google-ai-overviews-citations-investing-retirement-mortgage-financial-high-stakes-consumer-decisions
5. LLM Authority Index. The Persistence-Portability Gap: Why AI Citation Authority Persists Over Time but Fragments Across Platforms. https://llmauthorityindex.com/resources/measurement/persistence-portability-gap
6. PromptWatch. Why Did ChatGPT Stop Citing Reddit? Inside the August 2026 Citation Collapse. https://promptwatch.com/blog/chatgpt-stop-citing-reddit
7. Ahrefs. The 50 Most-Cited Websites in Google AI Overviews (September 2026). https://ahrefs.com/blog/most-cited-domains-ai-overviews/
8. BrightEdge. Institution or Platform: What Health and Finance Citations Reveal About ChatGPT and Google AI Overviews. https://www.brightedge.com/resources/weekly-ai-search-insights/ai-overviews-chatgpt-authority-health-finance
9. Tinuiti. AI Citation Trends Report Q3 2026. https://tinuiti.com/research-insights/research/ai-citation-trends-report/

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
• 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