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
0.243%
12M weight contribution
-0.357 pp
3M weight contribution
-0.207 pp
12M price return
-12.8%
Share of matched S&P 500 members
Monthly observations through Jan 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 |
|---|---|---|---|---|---|
| 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 |
| Aug 2019 | $114.8bn | 0.624% | +0.212 pp | -2.9% | No |
| Jul 2019 | $125.5bn | 0.668% | -0.070 pp | +7.2% | Yes |
| Jun 2019 | $116.9bn | 0.630% | -0.114 pp | +3.4% | Yes |
| May 2019 | $107.6bn | 0.627% | -0.126 pp | -5.8% | Yes |
| Apr 2019 | $118.9bn | 0.662% | -0.119 pp | +1.3% | Yes |
| Mar 2019 | $120.0bn | 0.690% | -0.139 pp | -3.7% | Yes |
| Feb 2019 | $117.5bn | 0.681% | -0.141 pp | -7.2% | 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.