Observatory · observe first
IBM
IBM · United States · IT Consulting & Other Services · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.402%
12M weight contribution
+0.402 pp
3M weight contribution
-0.038 pp
12M price return
+19.7%
Share of matched S&P 500 members
Monthly observations through Aug 2021
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 2021 | $120.3bn | 0.402% | +0.402 pp | +19.7% | Yes |
| Jul 2021 | $120.8bn | 0.414% | +0.414 pp | +20.8% | Yes |
| Jun 2021 | $125.2bn | 0.442% | +0.442 pp | +27.8% | Yes |
| May 2021 | $122.8bn | 0.440% | +0.439 pp | +21.2% | Yes |
| Apr 2021 | $121.2bn | 0.439% | -0.157 pp | +19.3% | Yes |
| Mar 2021 | $113.8bn | 0.223% | +0.222 pp | +26.8% | No |
| Feb 2021 | $101.6bn | 0.203% | +0.203 pp | -3.6% | No |
| Jan 2021 | $101.5bn | 0.243% | -0.357 pp | -12.8% | No |
| Dec 2020 | $107.2bn | 0.434% | -0.123 pp | -1.2% | Yes |
| Nov 2020 | $105.2bn | 0.447% | -0.127 pp | -3.3% | Yes |
| Oct 2020 | $95.1bn | 0.450% | -0.140 pp | -12.4% | Yes |
| Sep 2020 | $103.6bn | 0.001% | -0.654 pp | -12.2% | No |
| Aug 2020 | $105.0bn | 0.001% | -0.624 pp | -4.5% | No |
| Jul 2020 | $104.7bn | 0.001% | -0.668 pp | -13.1% | No |
| Jun 2020 | $102.5bn | 0.001% | -0.630 pp | -8.2% | No |
| May 2020 | $106.0bn | 0.001% | -0.626 pp | +3.1% | No |
| Apr 2020 | $106.6bn | 0.596% | -0.066 pp | -6.3% | Yes |
| Mar 2020 | $94.2bn | 0.000% | -0.689 pp | -17.7% | No |
| Feb 2020 | $110.5bn | 0.000% | -0.681 pp | -1.4% | No |
| Jan 2020 | $121.7bn | 0.600% | +0.215 pp | +12.1% | Yes |
| Dec 2019 | $113.5bn | 0.557% | +0.204 pp | +23.6% | No |
| Nov 2019 | $113.8bn | 0.573% | +0.215 pp | +13.4% | No |
| Oct 2019 | $113.2bn | 0.590% | +0.250 pp | +21.5% | No |
| Sep 2019 | $123.2bn | 0.654% | +0.234 pp | +0.9% | 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.