Observatory · observe first
Corning Inc.
GLW · United States · Electronic Components · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.213%
12M weight contribution
+0.094 pp
3M weight contribution
-0.057 pp
12M price return
+123.8%
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 | $128.1bn | 0.213% | +0.094 pp | +123.8% | No |
| Jul 2026 | $119.1bn | 0.208% | +0.094 pp | +121.0% | No |
| Jun 2026 | $219.8bn | 0.382% | +0.285 pp | +391.0% | Yes |
| May 2026 | $155.9bn | 0.270% | +0.174 pp | +269.3% | Yes |
| Apr 2026 | $140.9bn | 0.191% | +0.100 pp | +275.7% | Yes |
| Mar 2026 | $116.7bn | 0.170% | +0.077 pp | +201.5% | Yes |
| Feb 2026 | $129.0bn | 0.177% | +0.081 pp | +204.4% | Yes |
| Jan 2026 | $88.5bn | 0.169% | +0.070 pp | +102.0% | Yes |
| Dec 2025 | $75.1bn | 0.147% | +0.055 pp | +87.8% | Yes |
| Nov 2025 | $72.2bn | 0.142% | +0.050 pp | +76.3% | Yes |
| Oct 2025 | $76.4bn | 0.150% | +0.054 pp | +91.2% | Yes |
| Sep 2025 | $70.3bn | 0.141% | +0.051 pp | +85.6% | Yes |
| Aug 2025 | $57.4bn | 0.119% | +0.033 pp | +63.6% | Yes |
| Jul 2025 | $54.2bn | 0.114% | +0.053 pp | +61.9% | Yes |
| Jun 2025 | $45.0bn | 0.097% | +0.035 pp | +38.7% | Yes |
| May 2025 | $42.5bn | 0.096% | +0.035 pp | +36.3% | Yes |
| Apr 2025 | $38.0bn | 0.091% | +0.009 pp | +36.5% | No |
| Mar 2025 | $39.2bn | 0.093% | +0.015 pp | +42.6% | No |
| Feb 2025 | $43.0bn | 0.096% | +0.017 pp | +59.7% | Yes |
| Jan 2025 | $44.6bn | 0.099% | +0.017 pp | +65.0% | Yes |
| Dec 2024 | $40.7bn | 0.092% | +0.015 pp | +60.6% | Yes |
| Nov 2024 | $41.7bn | 0.092% | +0.016 pp | +75.9% | Yes |
| Oct 2024 | $40.7bn | 0.096% | +0.018 pp | +83.8% | Yes |
| Sep 2024 | $38.6bn | 0.090% | +0.003 pp | +53.1% | 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.