PLUG vs FSLR: which was the better investment?
Plug Power Inc. against First Solar, Inc. on real daily total-return data — every dividend reinvested, from Nov 17, 2006 to Jul 15, 2026.
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Frequently asked questions
Did PLUG beat FSLR?
No — measured from Nov 17, 2006 to Jul 15, 2026 with dividends reinvested, FSLR came out ahead: $91,053 versus $554 from a $10,000 start. That gap compounds from a 11.9% annual return against -13.7%.
What would $10,000 in PLUG be worth today?
$10,000 invested in Plug Power Inc. (PLUG) on Nov 17, 2006 would be worth about $554 as of Jul 15, 2026, a total return of -94.5% (-13.7% per year). The same $10,000 in FSLR would be worth $91,053.
Which was riskier — PLUG or FSLR?
PLUG swung with an annualized volatility of 96.4% and a worst peak-to-trough drop of -99.7%; FSLR ran at 59.6% volatility with a -96.2% maximum drawdown. Risk-adjusted (Sharpe ratio), that is -0.16 for PLUG vs 0.17 for FSLR.
What data is this comparison based on?
Daily adjusted closing prices covering Nov 17, 2006 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 PLUG vs FSLR. 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.