Long-term wealth building often starts with a simple, but frequently misunderstood, truth: picking individual stocks is hard. According to J.P. Morgan analysts, roughly 40% of stocks delivered negative total returns from 1980 to 2020, illustrating how uneven outcomes can be even across different sectors.
Against that backdrop, broad-market exposure has remained a cornerstone strategy for many investors. Data cited in the analysis shows that a relatively small group of “megawinners” powered a large share of index gains, supporting the case for using an S&P 500 index fund as a core holding rather than relying solely on stock selection.
Key takeaways
- Price move: The article argues for broad exposure to the S&P 500 through an index ETF rather than making a near-term trading bet.
- Catalyst: J.P. Morgan’s finding that about 40% of stocks had negative total returns from 1980 to 2020, alongside evidence that most companies ultimately underperform.
- Key implication: Investors may face a lower risk of “value trap” outcomes when they hold a diversified index basket that keeps allocating to winners as markets evolve.
- Compounding angle: The piece emphasizes dollar-cost averaging as a way to potentially amplify long-term outcomes versus a lump-sum investment.
Why individual-stock investing can be a tough proposition
The analysis highlights that stock-level results can be dominated by a minority of companies. According to the J.P. Morgan study referenced in the article, about 40% of stocks experienced negative total returns over the 40-year span from 1980 to 2020. The study also found that this pattern was not limited to one industry—loss-making stocks appeared across sectors.
The article’s core conclusion is that even investors who get stock selection “right” at times may still be exposed to the statistical reality of many companies failing to deliver sustained returns. It also points to additional evidence from the same J.P. Morgan research that shows a high rate of severe drawdowns among Russell 3000 constituents, with many of those declines not fully reversing.
What the “megawinner” effect means for index strategies
While individual stocks can often lag, the broader market has generally advanced over long periods. The article attributes index strength to a concentration of strong performers. It states that about 10% of the stocks in the Russell 3000—an index designed to represent the largest 3,000 U.S.-listed companies—met a threshold of outperforming the Russell 3000 by 500% or more.
Because those top performers comprise only a fraction of the overall stock universe, the argument is that index funds can capture outsized upside without requiring investors to identify the winning names in advance. In this framing, the S&P 500 is positioned as a vehicle that allows investors to benefit from the market’s winners while minimizing the chance that their portfolio is dominated by underperformers.
Using an S&P 500 ETF as a core holding—and the role of dollar-cost averaging
The article recommends that even investors who like holding individual stocks maintain an S&P 500 index fund as a core allocation. It specifically points to the Vanguard S&P 500 ETF, linking to the fund page for Vanguard’s vehicle.
To illustrate the potential impact of sustained contributions, the piece provides scenario examples based on the S&P 500’s historical performance over the past decade and a dollar-cost averaging approach. It suggests that a $1,000 monthly contribution could materially change the ending value compared with a lump-sum investment, driven by compounding over time.
The underlying rationale is diversification plus disciplined investing. Rather than attempting to time entry points into individual equities, dollar-cost averaging spreads purchases across time, which the article says can reduce the risk of being locked into a poorly performing single stock or sector exposure.
What to watch next
For investors considering an S&P 500 ETF as a long-term anchor, the key question is less about short-term moves and more about sticking to allocation and contribution plans through market cycles. Upcoming catalysts that can influence broader market performance include U.S. economic data releases and Federal Reserve-related updates that shape expectations for interest rates, as well as the start of major earnings seasons for the large-cap companies that dominate the index.
As always, investors are encouraged to match any index allocation strategy to their time horizon, risk tolerance, and broader portfolio construction.
