For those questioning the sustainability of the recent rally in US stocks, a significant driving force remains resolutely optimistic: individual investors. Following a record-breaking year in 2025, retail traders have continued their buying momentum into January, with purchases recorded in the first four trading days hitting the second-highest level in nearly eight months, as highlighted by an analysis from JPMorgan Securities.
Data from the firm indicated that daily buying activity was consistently above the 85th percentile of observations, showcasing a strong conviction among individual investors. This bullish sentiment has provided stability to the markets during recent downturns, suggesting that if retail investors maintain their purchasing behavior, the upward trends in the US stock market are set to continue.
“We are witnessing markets driven more by fund flows than by valuations,” noted Steve Sosnick, chief strategist at Interactive Brokers. He added that the willingness of individual investors to commit funds to stocks is a positive indicator for broader market performance.
Since the beginning of the year, retail investors have acquired approximately $10.1 billion in US equities, predominantly through exchange-traded funds (ETFs). This figure outstrips the 12-month average weekly inflow of roughly $6.5 billion, signaling robust investor confidence. The recent resurgence in buying follows an exceptional year for retail investors, with inflows in 2025 nearly double the five-year average. This level of investment surpassed the previous record set in 2021 by 17% and exceeded 2024 inflows by almost 60%. Notably, December 2025 recorded the largest monthly buying activity since the significant downturn on Liberation Day in April.
Retail investors reaped substantial rewards last year, with gains exceeding 20%, outpacing the S&P 500’s performance. A significant portion of these profits came from aggressive buying during three major corrections early in the year. Technology stocks were particularly favored, with retail activity concentrated on firms like Nvidia Corp. and Tesla Inc., which experienced notable share price increases of 39% and 11%, respectively. Although single-stock trading activity diminished starting in May, the appetite for ETFs remained firm, sustaining overall equity demand.
The influence of retail investors on the market has grown considerably, with one in two US households now owning stocks. According to Barclays’ Alexander Altmann, the total net worth tied to the stock market for households has reached an all-time high of over 30%. Citadel Securities reported that individual investors currently account for 21% of trading volume in US stocks, with their share jumping to around 60% of customer volume at the Options Clearing Corp., the largest equity derivatives clearing organization.
However, the persistence of this buying trend raises questions given the rising debt burdens faced by US consumers. “The buy-the-dip strategy has consistently worked for a wide array of investors, and it seems reasonable to anticipate its continued popularity—until it no longer produces results, as is the fate of all presumed foolproof strategies,” Sosnick remarked.
A notable shift has been the influx into precious metals, marked by retail purchases of the SPDR Gold Shares ETF (GLD) in 2025, which surpassed all combined purchases from the preceding five years. The fund itself rose about 64% in 2025, driven by increasing gold prices and robust central bank buying amid growing geopolitical risks.
Moreover, retail enthusiasm has expanded into derivatives, with a sharp uptick in options activity following a holiday lull. Individual investors have reportedly purchased call options for 35 of the past 36 weeks. Scott Rubner, head of equity and equity derivatives strategy at Citadel Securities, conveyed optimism regarding retail’s bullish stance, citing that these investors entered January armed with significant capital to invest.
The outlook remains positive for this year, particularly in emerging sectors such as quantum computing, robotics, automation, and even space travel, indicating that retail investors are set to continue influencing market dynamics in the immediate future.
