VRTX vs BIIB: which was the better investment?
Vertex Pharmaceuticals Incorporated against Biogen Inc. on real daily total-return data — every dividend reinvested, from Sep 17, 1991 to Jul 15, 2026.
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Frequently asked questions
Did VRTX beat BIIB?
Yes — measured from Sep 17, 1991 to Jul 15, 2026 with dividends reinvested, VRTX came out ahead: $859,582 versus $616,112 from a $10,000 start. That gap compounds from a 13.6% annual return against 12.6%.
What would $10,000 in VRTX be worth today?
$10,000 invested in Vertex Pharmaceuticals Incorporated (VRTX) on Sep 17, 1991 would be worth about $859,582 as of Jul 15, 2026, a total return of 8495.8% (13.6% per year). The same $10,000 in BIIB would be worth $616,112.
Which was riskier — VRTX or BIIB?
VRTX swung with an annualized volatility of 54.9% and a worst peak-to-trough drop of -91.8%; BIIB ran at 55.9% volatility with a -90.0% maximum drawdown. Risk-adjusted (Sharpe ratio), that is 0.21 for VRTX vs 0.19 for BIIB.
What data is this comparison based on?
Daily adjusted closing prices covering Sep 17, 1991 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 VRTX vs BIIB. 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.