Observatory · observe first
Ecolab
ECL · United States · Specialty Chemicals · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.153%
12M weight contribution
-0.002 pp
3M weight contribution
-0.010 pp
12M price return
+11.7%
Share of matched S&P 500 members
Monthly observations through Nov 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 |
|---|---|---|---|---|---|
| Nov 2025 | $77.9bn | 0.153% | -0.002 pp | +11.7% | No |
| Oct 2025 | $72.6bn | 0.142% | -0.021 pp | +5.4% | No |
| Sep 2025 | $77.7bn | 0.155% | -0.014 pp | +8.3% | No |
| Aug 2025 | $78.6bn | 0.163% | -0.011 pp | +10.5% | No |
| Jul 2025 | $74.2bn | 0.156% | +0.038 pp | +14.6% | No |
| Jun 2025 | $76.4bn | 0.165% | +0.037 pp | +14.3% | No |
| May 2025 | $75.3bn | 0.171% | +0.044 pp | +15.5% | Yes |
| Apr 2025 | $71.2bn | 0.171% | -0.016 pp | +12.3% | Yes |
| Mar 2025 | $71.7bn | 0.170% | -0.012 pp | +10.9% | Yes |
| Feb 2025 | $76.1bn | 0.170% | -0.014 pp | +20.8% | Yes |
| Jan 2025 | $70.8bn | 0.158% | -0.011 pp | +27.5% | No |
| Dec 2024 | $66.4bn | 0.150% | -0.018 pp | +19.3% | No |
| Nov 2024 | $70.4bn | 0.155% | -0.015 pp | +31.1% | Yes |
| Oct 2024 | $69.6bn | 0.164% | +0.001 pp | +48.0% | Yes |
| Sep 2024 | $72.7bn | 0.169% | +0.008 pp | +52.2% | Yes |
| Aug 2024 | $72.0bn | 0.174% | +0.007 pp | +39.2% | Yes |
| Jul 2024 | $65.9bn | 0.118% | +0.004 pp | +27.3% | No |
| Jun 2024 | $68.0bn | 0.127% | +0.004 pp | +28.9% | No |
| May 2024 | $66.3bn | 0.127% | +0.011 pp | +42.3% | No |
| Apr 2024 | $64.6bn | 0.187% | +0.026 pp | +36.3% | Yes |
| Mar 2024 | $65.9bn | 0.183% | +0.022 pp | +41.1% | Yes |
| Feb 2024 | $64.2bn | 0.184% | +0.025 pp | +42.8% | Yes |
| Jan 2024 | $56.5bn | 0.168% | +0.017 pp | +29.6% | Yes |
| Dec 2023 | $56.6bn | 0.169% | +0.019 pp | +37.9% | 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.