Reddit's Investment Advice: A Data-Driven Audit of r/wallstreetbets

13.6 Million Degenerate Investors

r/wallstreetbets started in January 2012 as a niche forum for options traders who thought r/investing was too conservative. By 2016 it had about 100,000 members. Then GameStop happened.

In January 2021, WSB subscribers coordinated a short squeezeWhen a stock rises so fast that short sellers are forced to buy, pushing it even higher. on GameStop that sent the stock from $20 to $483 in four days. The subreddit gained 2.4 million subscribers in a single week. Reddit ran a five-second Super Bowl ad celebrating the moment. By early 2023, the community had 13.6 million members, making it the second-largest business and finance subreddit on the platform.

The event was dramatic. But drama doesn't tell us whether WSB is actually good at picking stocks. For that, we need data.

What the Data Actually Shows

The most rigorous study of WSB comes from the Oxford Review of Financial Studies. Researchers analyzed 5,015 due diligence reports and 13,255 non-research posts from July 2018 through June 2021. Their findings split into two distinct periods that tell very different stories.

Before GameStop, WSB's due diligenceDeep research into a company's financials and prospects before investing. posts were genuinely predictive. A buy recommendation in a DD post was associated with a 5.17% increase in one-month-ahead returns across the full sample, and 2.33% even after excluding GameStop and AMC. WSB research also predicted earnings surprises and media sentiment shifts. The crowd was doing real analysis and it was working.

After GameStop, the signal disappeared. The influx of millions of new members shifted the culture from research to momentum chasing. The fraction of posts emphasizing price pressure and attention-grabbing stocks surged. Predictive power dropped to zero. The same platform that once generated alpha became a sentiment amplifier with no informational edge.

The Meme Stock Scoreboard

WSB's most famous picks tell a story of spectacular peaks followed by devastating collapses. Every meme stock that made headlines eventually gave back most or all of its gains.

Bed Bath & Beyond filed for Chapter 11 bankruptcy in April 2023. The stock went to zero. AMC trades below $4, down 99% from its peak. GameStop is down 95% from its intraday high. These aren't positions that suffered temporary drawdowns. They suffered permanent capital destruction for anyone who bought near the top.

The broader picture is just as sobering. Across 105 WSB stocks analyzed in one study, only 50% had positive returns after 3 days. After 3 months, that number dropped to 34%. When you remove the outliers like GameStop and AMC, the average return for WSB picks turns negative.

WSB vs. the S&P 500

The most direct comparison comes from the BUZZ ETF. VanEck launched the Social Sentiment ETF (ticker: BUZZ) in March 2021 to track stocks with the highest bullish sentiment across social media, including WSB. It was, effectively, a way to bet on the crowd's picks in a regulated product.

From April 2021 through March 2024, BUZZ returned -3.58%. During the same period, the Vanguard S&P 500 ETF (VOO) returned +11.58%. The crowd's collective wisdom underperformed the boring index fund by over 15 percentage points.

There is a counterpoint. A separate academic study looking specifically at WSB's S&P 500 stock recommendations found that their buy signals, on average, produced higher profits than investment bank analyst recommendations over time. The catch: the volatility was significantly higher, meaning WSB picks produced larger gains in good months and larger losses in bad months. For most individual investors, that kind of volatility is hard to hold through.

When Crowds Are Wise and When They Aren't

The economist James Surowiecki identified three conditions for a crowd to be wise: independence (people forming their own opinions), decentralization (diverse sources of information), and aggregation (a mechanism for combining those opinions into a signal).

Early WSB met all three criteria. Members did original research, posted detailed due diligence, and the upvote system aggregated quality signals. The subreddit functioned like a decentralized research department with 100,000 analysts and no boss.

Post-GameStop WSB violated all three. Independence collapsed when momentum became the dominant strategy. Decentralization disappeared as everyone focused on the same handful of meme stocks. The aggregation mechanism broke because upvotes started rewarding entertainment value instead of analytical quality.

Wall Street Is Reading WSB Too

Hedge funds now pay for real-time data feeds from WSB. Quiver Quantitative, a startup that's been scraping the subreddit since early 2020, provides APIs to institutional investors who want to track which stocks are trending, measure sentiment, and detect potential meme stock events before they go parabolic.

This creates an asymmetry that WSB members should understand. When a due diligence post starts gaining traction, institutional algorithms may detect and act on the signal before most retail investors even see the post. The crowd's picks get front-run by the very institutions the crowd was trying to beat.

Positions created when WSB attention peaks have produced average holding-period returns of -8.5%. By the time a stock is trending on WSB, the easy money has already been made. The smart trade is usually the one made before the crowd notices.

What WSB Actually Is (and Isn't)

WSB is not a stock-picking service. It never was. The data shows that following its most-hyped picks at the point of maximum attention produces negative returns on average. The meme stocks that made it famous have collectively destroyed billions in retail wealth.

But WSB is not useless either. The pre-GameStop data proves that distributed communities doing original research can generate real alpha. The problem isn't the platform. The problem is that the community outgrew its signal. What worked at 100,000 members broke at 13 million.