Historical return extremes for Regeneron Pharmaceuticals (REGN) from 1991 to 2026
What if you bought at the best or worst time? Max profit, max drawdown, and total return since IPO.
| Scenario | Return | Start date | Start price | End date | End price | $1,000 becomes |
|---|---|---|---|---|---|---|
| Max profitMore info about Max profit | +39,957% | $2.98 | $1,193.70 | $400,570.47 | ||
| Max drawdownMore info about Max drawdown | -91.80% | $56.12 | $4.60 | $81.97 | ||
| Return since IPOMore info about Return since IPO | +2,816% | $20.99 | $612.14 | $29,163.41 |
- Max profitMore info about Max profit+39,957%$400,570.47
- Max drawdownMore info about Max drawdown-91.80%$81.97
- Return since IPOMore info about Return since IPO+2,816%$29,163.41
Each row shows the start and end dates and prices for the scenario, the period return, and the resulting outcome for a $1,000 investment in Regeneron Pharmaceuticals (REGN). Max profit is the best buy-and-sell pair across the entire price history; max drawdown is the worst peak-to-trough decline; the last row tracks return from IPO to today. Prices are split- and dividend-adjusted closing prices — actual outcomes would differ due to fees, taxes, and slippage.
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