Observatory · observe first
Amazon
AMZN · United States · Broadline Retail · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
4.688%
12M weight contribution
+0.135 pp
3M weight contribution
-0.334 pp
12M price return
+17.8%
Share of matched S&P 500 members
Monthly observations through Sep 2025
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 |
|---|---|---|---|---|---|
| Sep 2025 | $2341.7bn | 4.688% | +0.135 pp | +17.8% | No |
| Aug 2025 | $2442.3bn | 5.063% | +0.536 pp | +28.3% | Yes |
| Jul 2025 | $2485.4bn | 5.241% | +1.754 pp | +25.2% | Yes |
| Jun 2025 | $2329.1bn | 5.022% | +1.252 pp | +13.5% | Yes |
| May 2025 | $2176.5bn | 4.932% | +1.422 pp | +16.2% | No |
| Apr 2025 | $1954.4bn | 4.693% | -0.572 pp | +5.4% | No |
| Mar 2025 | $2016.3bn | 4.787% | -0.409 pp | +5.5% | No |
| Feb 2025 | $2249.7bn | 5.031% | -0.230 pp | +20.1% | Yes |
| Jan 2025 | $2499.2bn | 5.557% | +0.788 pp | +53.1% | Yes |
| Dec 2024 | $2306.9bn | 5.231% | +0.549 pp | +44.4% | Yes |
| Nov 2024 | $2186.0bn | 4.824% | +0.117 pp | +42.3% | Yes |
| Oct 2024 | $1956.4bn | 4.598% | -0.078 pp | +40.1% | Yes |
| Sep 2024 | $1955.6bn | 4.553% | +0.173 pp | +46.6% | Yes |
| Aug 2024 | $1873.5bn | 4.527% | -0.011 pp | +29.3% | Yes |
| Jul 2024 | $1945.8bn | 3.488% | +0.498 pp | +39.9% | No |
| Jun 2024 | $2011.1bn | 3.770% | +0.676 pp | +48.2% | No |
| May 2024 | $1836.2bn | 3.510% | +0.454 pp | +46.3% | No |
| Apr 2024 | $1817.8bn | 5.265% | +1.611 pp | +66.0% | Yes |
| Mar 2024 | $1873.7bn | 5.196% | +1.585 pp | +74.6% | Yes |
| Feb 2024 | $1836.1bn | 5.261% | +1.867 pp | +87.6% | Yes |
| Jan 2024 | $1603.8bn | 4.768% | +1.168 pp | +50.5% | Yes |
| Dec 2023 | $1570.2bn | 4.682% | +1.590 pp | +80.9% | Yes |
| Nov 2023 | $1509.7bn | 4.707% | +1.364 pp | +51.3% | Yes |
| Oct 2023 | $1375.4bn | 4.676% | +0.967 pp | +29.9% | 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.