Observatory · observe first
Gilead Sciences
GILD · United States · Biotechnology · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.302%
12M weight contribution
+0.012 pp
3M weight contribution
+0.013 pp
12M price return
+32.9%
Share of matched S&P 500 members
Monthly observations through Aug 2026
Company price index
A separate dimension from market allocation
Historical observations
Most recent 24 observations at or before the selected month
| Month | Market cap | Universe weight | 12M weight change | 12M return | Above 6M weight average |
|---|---|---|---|---|---|
| Aug 2026 | $181.5bn | 0.302% | +0.012 pp | +32.9% | Yes |
| Jul 2026 | $161.7bn | 0.282% | -0.012 pp | +19.0% | Yes |
| Jun 2026 | $156.9bn | 0.273% | -0.025 pp | +16.9% | Yes |
| May 2026 | $166.9bn | 0.289% | -0.021 pp | +25.4% | Yes |
| Apr 2026 | $162.4bn | 0.220% | -0.098 pp | +26.1% | No |
| Mar 2026 | $173.0bn | 0.252% | -0.079 pp | +27.7% | No |
| Feb 2026 | $184.9bn | 0.254% | -0.065 pp | +33.9% | No |
| Jan 2026 | $176.1bn | 0.337% | +0.068 pp | +50.1% | Yes |
| Dec 2025 | $152.3bn | 0.298% | +0.037 pp | +36.6% | Yes |
| Nov 2025 | $156.1bn | 0.307% | +0.052 pp | +40.0% | Yes |
| Oct 2025 | $148.6bn | 0.291% | +0.031 pp | +38.9% | No |
| Sep 2025 | $137.7bn | 0.276% | +0.033 pp | +36.3% | No |
| Aug 2025 | $140.2bn | 0.291% | +0.053 pp | +47.6% | No |
| Jul 2025 | $139.7bn | 0.295% | +0.125 pp | +52.4% | No |
| Jun 2025 | $137.9bn | 0.297% | +0.137 pp | +66.8% | No |
| May 2025 | $136.9bn | 0.310% | +0.157 pp | +77.7% | Yes |
| Apr 2025 | $132.7bn | 0.319% | +0.083 pp | +69.5% | Yes |
| Mar 2025 | $139.5bn | 0.331% | +0.078 pp | +58.7% | Yes |
| Feb 2025 | $142.4bn | 0.318% | +0.061 pp | +65.0% | Yes |
| Jan 2025 | $121.1bn | 0.269% | -0.021 pp | +29.3% | Yes |
| Dec 2024 | $115.1bn | 0.261% | -0.040 pp | +18.7% | Yes |
| Nov 2024 | $115.4bn | 0.255% | -0.043 pp | +25.9% | Yes |
| Oct 2024 | $110.6bn | 0.260% | -0.073 pp | +17.8% | Yes |
| Sep 2024 | $104.4bn | 0.243% | -0.069 pp | +16.5% | Yes |
Its weight is estimated market cap divided by the total estimated market cap of matched S&P 500 members for the month. This is not an official float-adjusted S&P index weight.