REGN vs DIA: which was the better investment?
Regeneron Pharmaceuticals, Inc. against SPDR Dow Jones Industrial Average ETF on real daily total-return data — every dividend reinvested, from Jan 20, 1998 to Jul 13, 2026.
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Frequently asked questions
Did REGN beat DIA?
Yes — measured from Jan 20, 1998 to Jul 13, 2026 with dividends reinvested, REGN came out ahead: $786,549 versus $120,564 from a $10,000 start. That gap compounds from a 16.6% annual return against 9.1%.
What would $10,000 in REGN be worth today?
$10,000 invested in Regeneron Pharmaceuticals, Inc. (REGN) on Jan 20, 1998 would be worth about $786,549 as of Jul 13, 2026, a total return of 7765.5% (16.6% per year). The same $10,000 in DIA would be worth $120,564.
Which was riskier — REGN or DIA?
REGN swung with an annualized volatility of 58.3% and a worst peak-to-trough drop of -91.8%; DIA ran at 18.5% volatility with a -51.9% maximum drawdown. Risk-adjusted (Sharpe ratio), that is 0.25 for REGN vs 0.38 for DIA.
What data is this comparison based on?
Daily adjusted closing prices covering Jan 20, 1998 through Jul 13, 2026 — the full period where both assets have price history. Adjusted prices include dividends and splits, so these are total returns. The page refreshes with new market data every day.
Can I change the dates, amounts, or add monthly investing?
Yes — the interactive tool on this page is pre-loaded with REGN vs DIA. You can set any start and end date, change the starting amount, add monthly contributions, or build a multi-asset portfolio and compare it against any benchmark.