GSK vs NVO: which was the better investment?
GSK plc against Novo Nordisk A/S on real daily total-return data — every dividend reinvested, from Apr 30, 1981 to Jul 15, 2026.
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Frequently asked questions
Did GSK beat NVO?
No — measured from Apr 30, 1981 to Jul 15, 2026 with dividends reinvested, NVO came out ahead: $6,060,272 versus $2,618,117 from a $10,000 start. That gap compounds from a 15.2% annual return against 13.1%.
What would $10,000 in GSK be worth today?
$10,000 invested in GSK plc (GSK) on Apr 30, 1981 would be worth about $2,618,117 as of Jul 15, 2026, a total return of 26081.2% (13.1% per year). The same $10,000 in NVO would be worth $6,060,272.
Which was riskier — GSK or NVO?
GSK swung with an annualized volatility of 26.9% and a worst peak-to-trough drop of -55.2%; NVO ran at 30.2% volatility with a -74.7% maximum drawdown. Risk-adjusted (Sharpe ratio), that is 0.41 for GSK vs 0.44 for NVO.
What data is this comparison based on?
Daily adjusted closing prices covering Apr 30, 1981 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 GSK vs NVO. 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.