COHR vs DIA: which was the better investment?
Coherent Corp. against SPDR Dow Jones Industrial Average ETF on real daily total-return data — every dividend reinvested, from Jan 20, 1998 to Jul 15, 2026.
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Frequently asked questions
Did COHR beat DIA?
Yes — measured from Jan 20, 1998 to Jul 15, 2026 with dividends reinvested, COHR came out ahead: $1,259,740 versus $121,160 from a $10,000 start. That gap compounds from a 18.5% annual return against 9.2%.
What would $10,000 in COHR be worth today?
$10,000 invested in Coherent Corp. (COHR) on Jan 20, 1998 would be worth about $1,259,740 as of Jul 15, 2026, a total return of 12497.4% (18.5% per year). The same $10,000 in DIA would be worth $121,160.
Which was riskier — COHR or DIA?
COHR swung with an annualized volatility of 56.8% and a worst peak-to-trough drop of -74.3%; DIA ran at 18.5% volatility with a -51.9% maximum drawdown. Risk-adjusted (Sharpe ratio), that is 0.29 for COHR vs 0.39 for DIA.
What data is this comparison based on?
Daily adjusted closing prices covering Jan 20, 1998 through Jul 15, 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 COHR 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.