What if you invested in Gilead Sciences in 2015?
GILD · Healthcare · Data through 2026-06-01
If you invested $1,000 in Gilead Sciences in 2015
The same $1,000 in the S&P 500 would be worth $4,521(+352.1%)
The S&P 500 returned $4,521 on the same $1,000. S&P 500 outperformed by $2,777.
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Compare Gilead Sciences to another stock
See how Gilead Sciences stacks up since 2015, head to head.
What if Gilead Sciences keeps this up?
Project forward at Gilead Sciences's 4.9% historical growth rate. See 5-30 year scenarios.
Growth of $1,000
Gilead Sciences vs. S&P 500 vs. US Dollar, 2015 to present
Year-by-Year Returns
$1,000 invested in Gilead Sciences starting January 2015
| Year | Price | Value | Annual |
|---|---|---|---|
| 2015 | $71.95 | $1,000 | - |
| 2016 | $57.64 | $801 | -19.9% |
| 2017 | $51.48 | $716 | -10.7% |
| 2018 | $61.28 | $852 | +19% |
| 2019 | $52.82 | $734 | -13.8% |
| 2020 | $49.52 | $688 | -6.3% |
| 2021 | $53.48 | $743 | +8% |
| 2022 | $58.39 | $812 | +9.2% |
| 2023 | $74.62 | $1,037 | +27.8% |
| 2024 | $72.25 | $1,004 | -3.2% |
| 2025 | $93.41 | $1,298 | +29.3% |
| 2026 | $140.23 | $1,949 | +50.1% |
What this return means
A $1,000 stake in Gilead Sciences (GILD) from 2015 sits at $1,745 today. The total return is +74.5% over 11.6 years, as of 2026-06-01.
That is only about 4.9% a year once you compound it across 11.6 years. The same $1,000 in an S&P 500 index fund would be about $4,521 over the identical span, so the index came out ahead by roughly $2,777. The index compounded at about 13.9% a year, a reminder that a single stock can lag a basket of them.
Getting here meant sitting through real volatility. The best single year was 2025 at +29.3%, and the worst was 2016 at -19.9%. At its lowest point the position was down about 31% from an earlier high. These figures use split-adjusted closing prices and exclude dividends, taxes, trading fees, and inflation, so a real after-tax result would differ.
None of this is a recommendation. It is a record of what already happened, and past performance does not guarantee future results.
What if you invested $100 a month instead?
Most people do not drop a lump sum in on day one. They add a fixed amount every month. Putting $100 into Gilead Sciences at the close of every month from January 2015 through June 2026 means 138 buys and $13,800 contributed over about 11.5 years.
$100/month, dollar-cost averaged
$27,699
+100.7% on $13,800 in
Same $13,800, all in at the start
$24,075
+74.5% on $13,800 in
Spreading the buys out beat going all in at the start by $3,625. That happens when the price spent time below where it began, so averaging in caught the cheaper months. Averaging in also meant an average buy price of $62.53 per share across the whole stretch, so the monthly buyer never had to time a single low. Neither number counts dividends, taxes, or trading costs.
Illustrative fixed $100/month example, not a recommendation. Figures are computed from GILD split-adjusted monthly closes through June 2026. Past performance does not guarantee future results.
Gilead Sciences at different times
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For informational and educational purposes only. Not financial advice. Past performance does not guarantee future results. All calculations are based on split-adjusted closing prices from Yahoo Finance and do not account for dividends, taxes, or trading fees. See our methodology and full disclaimer.