TMO vs DIA: which was the better investment?
Thermo Fisher Scientific Inc. 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 TMO beat DIA?
Yes — measured from Jan 20, 1998 to Jul 15, 2026 with dividends reinvested, TMO came out ahead: $161,369 versus $121,128 from a $10,000 start. That gap compounds from a 10.3% annual return against 9.2%.
What would $10,000 in TMO be worth today?
$10,000 invested in Thermo Fisher Scientific Inc. (TMO) on Jan 20, 1998 would be worth about $161,369 as of Jul 15, 2026, a total return of 1513.7% (10.3% per year). The same $10,000 in DIA would be worth $121,128.
Which was riskier — TMO or DIA?
TMO swung with an annualized volatility of 29.6% and a worst peak-to-trough drop of -70.1%; DIA ran at 18.5% volatility with a -51.9% maximum drawdown. Risk-adjusted (Sharpe ratio), that is 0.28 for TMO 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 TMO 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.