Khan Capital | January 2021
Key Takeaways
- Retail trading accounts surged by over 10 million in 2020, with Robinhood alone adding roughly 3 million funded accounts in the first quarter as COVID-19 lockdowns, commission-free platforms, and stimulus payments converged to create an unprecedented wave of new market participants.
- Retail investors bought the March 2020 crash aggressively, accumulating positions in beaten-down names while institutional investors were still de-risking, a dynamic that challenged conventional assumptions about “dumb money” and contributed to one of the fastest market recoveries in history.
- Options trading volumes hit record highs, with single-stock equity options averaging over 30 million contracts per day by late 2020, driven largely by retail participation in short-dated call options that amplified upside momentum in popular names.
- The structural shift is permanent: commission-free trading, fractional shares, and social media-driven investment communities have fundamentally altered market microstructure, and the rise of retail trading in 2021 represents a generational change in who participates in capital markets and how they do it.
The Rise of Retail Trading: A Perfect Storm
Something extraordinary happened in American capital markets during 2020. While a global pandemic shuttered economies, killed hundreds of thousands, and triggered the fastest bear market in history, a new generation of investors discovered the stock market. They arrived not through traditional brokerages or financial advisers, but through smartphones, Reddit forums, and TikTok videos. By January 2021, the rise of retail trading has become the most consequential shift in market participation since the advent of online brokerages in the late 1990s.
The numbers are staggering. Robinhood, the commission-free trading app that became synonymous with the movement, reported 13 million users by the end of 2020, up from approximately 10 million at the start of the year. Charles Schwab, TD Ameritrade, and E*Trade collectively opened millions of new accounts. The median age of new brokerage account holders dropped below 35. For the first time in decades, the stock market felt accessible, even exciting, to ordinary people.
The Commission War That Changed Everything
The seeds of the retail trading revolution were planted well before the pandemic. In October 2019, Charles Schwab stunned the brokerage industry by eliminating commissions on online stock and ETF trades. TD Ameritrade, E*Trade, and Fidelity followed within days. What Robinhood had pioneered as a disruptive business model since 2015 became the industry standard overnight. The removal of the $4.95 to $6.95 per-trade friction that had long deterred small investors from active participation was, in retrospect, the single most important structural catalyst.
Commission-free trading alone would not have been sufficient. Fractional share investing, introduced broadly by Schwab, Fidelity, and Robinhood throughout 2019 and 2020, meant that a young investor with $50 could buy a slice of Amazon at $3,000 per share or Tesla at $1,500. The psychological and practical barriers to entry collapsed simultaneously. The democratisation of market access, long discussed in abstract terms, became a concrete reality.
COVID-19, Stimulus, and the Lockdown Effect
When the Federal Reserve cut rates to zero and launched unlimited quantitative easing in March 2020, it simultaneously rescued financial markets and destroyed the appeal of savings accounts. The average savings rate on deposits fell below 0.10%. For a generation already sceptical of traditional financial institutions, the opportunity cost of not investing became painfully clear.
Then came the stimulus cheques. The CARES Act delivered $1,200 to most American adults in April 2020, followed by a further $600 in late December. Research from multiple sources, including data from the Federal Reserve and fintech transaction records, suggested that a meaningful portion of stimulus recipients who were not in immediate financial distress directed some of those funds into brokerage accounts. Robinhood reported its busiest trading days in history in the weeks following each stimulus disbursement.
The lockdown effect compounded everything. With sports cancelled, casinos closed, and millions of knowledge workers confined to home offices, day trading filled a void that was part financial, part entertainment, and part social. The gamification of Robinhood’s interface, complete with confetti animations on first trades and a design language borrowed from mobile gaming, drew both praise for accessibility and criticism for trivialising risk.
Retail Traders Bought the Crash
Perhaps the most remarkable aspect of the 2020 retail surge was its timing. As the S&P 500 plunged 34% from its February peak to its March 23 trough, institutional investors were aggressively de-risking. Hedge funds cut gross exposure. Systematic strategies sold into the decline. Corporate buyback programmes were suspended. Into that vacuum stepped retail investors, buying the dip with a conviction that surprised professional allocators.
Robinhood’s publicly available data showed that the number of users holding popular names like American Airlines, Ford, GE, and Disney surged during March and April 2020. Many of these were deeply cyclical, beaten-down stocks that institutional consensus had written off. By the time the S&P 500 reclaimed its February highs in August, many retail portfolios had generated returns that outpaced the index precisely because they had concentrated in the most volatile, highest-beta names.
| Metric | Pre-Pandemic (2019) | Post-Pandemic (2020) | Change |
|---|---|---|---|
| Robinhood Funded Accounts | ~10 million | ~13 million | +30% |
| Avg. Daily Equity Options Volume | ~20 million contracts | ~30 million contracts | +50% |
| Retail Share of US Equity Volume | ~15% | ~20-25% | +5-10pp |
| Schwab New Accounts (Q1 2020) | ~600K/quarter | 1.6 million | +167% |
| Avg. US Savings Account Rate | ~1.75% | ~0.06% | -97% |
The Options Explosion
If equity purchases represented the entry point, options trading represented the escalation. Single-stock equity options volumes in the United States hit record after record throughout 2020, with the CBOE reporting average daily volumes exceeding 30 million contracts by the fourth quarter. A disproportionate share of this activity came from small, short-dated call option purchases: contracts expiring within a week, bought in small notional sizes, on popular momentum names like Tesla, Apple, and Nio.
The mechanics of this activity created a feedback loop that professional traders quickly labelled the “gamma squeeze.” When retail investors purchase out-of-the-money call options, market makers who sell those options must hedge their exposure by buying the underlying stock. As the stock rises, their hedging requirements increase, forcing additional purchases that push the stock higher still. This dynamic was particularly pronounced in Tesla, which rose over 740% in 2020 and became the most actively traded options name in the market.
The risks, of course, were substantial. Options expire worthless far more often than they pay off, and the leverage embedded in short-dated calls can produce total losses in days. For every retail trader who turned $5,000 into $50,000 on a Tesla call spread, there were others who lost their entire position. But the success stories, amplified across social media, created a powerful narrative: the market was a place where ordinary people could generate extraordinary returns.
Reddit, Social Media, and the New Research Model
The rise of retail trading in 2021 cannot be understood without examining the parallel rise of social media as an investment research and coordination platform. Reddit’s r/WallStreetBets community, which had roughly 1.5 million members at the start of 2020, became the de facto gathering place for a new generation of traders who combined irreverent humour, aggressive risk-taking, and surprisingly sophisticated options analysis.
The culture was deliberately anti-institutional. Members referred to themselves as “degenerates” and “apes,” posted screenshots of six-figure losses with the same enthusiasm as gains, and developed a shared vocabulary (“tendies,” “diamond hands,” “YOLO”) that served as both community identity and implicit investment philosophy. The underlying message was clear: markets were no longer the exclusive domain of professionals in suits. Anyone with a smartphone and a thesis could play.
YouTube, TikTok, and Twitter (now X) amplified the phenomenon further. Financial influencers with limited formal credentials but enormous followings offered stock picks, options strategies, and market commentary to audiences that traditional financial media had never reached. Dave Portnoy, the founder of Barstool Sports, became arguably the most visible symbol of the movement, live-streaming his day trading sessions and declaring that “stocks only go up” with a mix of genuine conviction and performative bravado.
What the Market Is Misunderstanding
The institutional response to the retail surge has been largely dismissive. Many professional investors view the phenomenon as a speculative bubble driven by unsophisticated participants who will eventually be taught expensive lessons by the market. There is certainly some truth in this assessment: a significant number of new retail traders have limited understanding of fundamental valuation, risk management, or the historical tendency of speculative manias to end badly.
But the market is misunderstanding the permanence of the structural shift. Commission-free trading is not going back to $6.95 per trade. Fractional shares are not being un-invented. The median age of new investors is not going to revert to 55. The infrastructure that enabled this revolution, from mobile-first brokerage apps to social media investment communities, is now deeply embedded in how an entire generation relates to capital markets. Even when speculative excess inevitably corrects, the participation rate of younger investors is unlikely to return to pre-2020 levels.
There is also a tendency to underestimate the aggregate market impact. Retail investors now account for an estimated 20% to 25% of US equity trading volume, up from roughly 15% before the pandemic. In certain names, particularly small and mid-cap momentum stocks, retail flow can dominate price action for extended periods. The implications for market microstructure, price discovery, and the efficacy of traditional quantitative strategies are significant and still being worked through.
Regulatory and Industry Implications
The speed of the retail trading revolution has outpaced regulatory adaptation. The Securities and Exchange Commission and FINRA are grappling with questions that did not exist five years ago: should gamified trading interfaces be regulated differently? Is payment for order flow, the business model that subsidises commission-free trading, actually harmful to retail execution quality? How should regulators approach social media-driven market manipulation versus legitimate collective investment enthusiasm?
The payment for order flow debate is particularly consequential. Robinhood and other commission-free brokerages earn revenue by routing customer orders to market makers like Citadel Securities and Virtu Financial, who pay for the privilege of executing those trades. Critics argue this creates conflicts of interest and may result in inferior execution prices. Proponents counter that retail investors receive better prices than they would on public exchanges, even after accounting for the PFOF subsidy. The data on this question is genuinely ambiguous, and the regulatory outcome will shape brokerage economics for years.
The Democratisation Debate
At its core, the retail trading boom raises a fundamental question about financial democratisation: is broader market access unambiguously positive? Optimists point to wealth-building potential. The S&P 500 has historically returned roughly 10% annually, and excluding younger, less wealthy cohorts from that compounding has perpetuated inequality. Making it trivially easy and free to invest $25 in an index fund is, by most measures, a social good.
The counterargument is that the most visible retail behaviour is not long-term index investing but short-term speculative trading in volatile individual stocks and options. The average holding period on Robinhood has been estimated at just days, not years. For participants who lack a margin of financial safety, the combination of leverage, volatility, and behavioural biases can be devastating. The tragic death of Alex Kearns, a 20-year-old Robinhood user who died by suicide in June 2020 after misinterpreting a large negative options balance, became a stark symbol of the human cost when access outpaces education.
The long-term answer likely lies somewhere in between. The infrastructure for broader market participation is now permanent, and that is, on balance, positive. But the industry, regulators, and the investment community have a responsibility to ensure that access is accompanied by guardrails, education, and honest communication about risk. The brokerage that makes it easy to buy a stock should make it equally easy to understand what a stock is.
Investor Implications
Equities: Retail flow has become a meaningful input to equity market dynamics, particularly in mid and small-cap names. Institutional investors who ignore retail positioning risk being caught on the wrong side of momentum-driven moves. Conversely, names with concentrated retail ownership can experience violent reversals when sentiment shifts. Factor models that do not account for retail flow are increasingly incomplete.
Options and volatility: The structural increase in retail call buying has compressed the relationship between implied and realised volatility in popular names and created persistent demand for upside convexity. Options market makers have adapted their hedging models, but the gamma squeeze dynamic remains a source of potential dislocation, particularly around options expiration dates.
Crypto and alternative assets: The same cohort driving equity retail volumes is also the primary participant base in cryptocurrency markets and other speculative asset classes. The risk appetite and return expectations cultivated in equity markets transfer directly to crypto, NFTs, and other emerging categories. Any assessment of crypto market dynamics must account for the retail trading infrastructure that enables rapid capital reallocation.
Brokerage and fintech: The winners of the retail revolution are the platforms themselves. Robinhood is preparing for an IPO. Schwab’s acquisition of TD Ameritrade created a $6 trillion asset management behemoth. Interactive Brokers, SoFi, and Webull are competing aggressively for market share. For investors in financial services, the secular growth in retail participation represents a multi-year tailwind for platforms that can monetise engagement without alienating their user base.
Conclusion
The rise of retail trading in 2021 is not a fad, nor is it simply a byproduct of lockdown boredom and stimulus cheques. It represents a structural transformation in who participates in capital markets and how. The convergence of zero commissions, fractional shares, mobile-first platforms, and social media investment communities has lowered the barriers to entry to essentially zero, and a generation that grew up with smartphones has responded by engaging with markets in a way their parents never did.
The consequences will take years to fully manifest. In the near term, the interaction between retail enthusiasm and institutional positioning will continue to generate dislocations: the GameStop saga that is unfolding as this article goes to press is merely the most dramatic example. In the longer term, the questions are more fundamental: will this generation of traders evolve into long-term investors? Will regulators adapt effectively? Will the market microstructure adjustments required to accommodate persistent retail flow make markets more or less efficient? The answers will define the next decade of capital markets.
Sources: Robinhood account data and SEC filings; Charles Schwab quarterly earnings reports and new account disclosures; CBOE Global Markets daily options volume data; SEC staff reports on equity market structure and payment for order flow; FINRA regulatory notices on margin and options suitability; Federal Reserve research on household financial behaviour during COVID-19; Bloomberg analysis of retail trading flow data.
Related Reading: The retail trading revolution reached its most dramatic expression in the GameStop short squeeze that erupted just days after this analysis was published. The zero-rate environment that fuelled retail risk appetite was a direct consequence of the Fed’s emergency response to the COVID-19 crash. The same democratisation impulse has since extended into private markets, while the speculative energy cultivated in equity markets fed directly into the crypto euphoria that peaked later in 2021. For where the broader crypto narrative ultimately led, see Bitcoin’s institutional era. The institutional adoption wave that transformed Bitcoin from retail speculation to portfolio asset is explored in Bitcoin’s institutional moment. The uneven nature of the post-COVID recovery is examined in the K-shaped recovery. The fiscal response that complemented the Fed’s monetary intervention is covered in the CARES Act.
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