Observatory · observe first
Realty Income
O · United States · Retail REITs · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.099%
12M weight contribution
-0.017 pp
3M weight contribution
+0.013 pp
12M price return
+14.8%
Share of matched S&P 500 members
Monthly observations through May 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 |
|---|---|---|---|---|---|
| May 2026 | $57.1bn | 0.099% | -0.017 pp | +14.8% | Yes |
| Apr 2026 | $59.9bn | 0.081% | -0.043 pp | +17.8% | No |
| Mar 2026 | $57.0bn | 0.083% | -0.040 pp | +12.0% | No |
| Feb 2026 | $62.5bn | 0.086% | -0.028 pp | +24.7% | No |
| Jan 2026 | $56.3bn | 0.108% | +0.001 pp | +18.9% | Yes |
| Dec 2025 | $51.9bn | 0.102% | -0.004 pp | +12.2% | No |
| Nov 2025 | $53.0bn | 0.104% | -0.008 pp | +5.8% | No |
| Oct 2025 | $53.0bn | 0.104% | -0.018 pp | +3.8% | No |
| Sep 2025 | $55.6bn | 0.111% | -0.017 pp | +1.4% | No |
| Aug 2025 | $53.7bn | 0.111% | -0.019 pp | +0.0% | No |
| Jul 2025 | $50.7bn | 0.107% | +0.017 pp | +3.3% | No |
| Jun 2025 | $52.0bn | 0.112% | +0.026 pp | +15.3% | No |
| May 2025 | $51.1bn | 0.116% | +0.028 pp | +12.8% | Yes |
| Apr 2025 | $51.6bn | 0.124% | -0.010 pp | +13.7% | Yes |
| Mar 2025 | $51.7bn | 0.123% | -0.006 pp | +12.9% | Yes |
| Feb 2025 | $50.8bn | 0.114% | -0.015 pp | +15.2% | No |
| Jan 2025 | $47.8bn | 0.106% | -0.011 pp | +5.8% | No |
| Dec 2024 | $46.7bn | 0.106% | -0.018 pp | -2.1% | No |
| Nov 2024 | $50.7bn | 0.112% | -0.010 pp | +12.9% | Yes |
| Oct 2024 | $51.7bn | 0.122% | +0.007 pp | +31.9% | Yes |
| Sep 2024 | $55.2bn | 0.129% | +0.010 pp | +33.9% | Yes |
| Aug 2024 | $54.1bn | 0.131% | +0.004 pp | +16.9% | Yes |
| Jul 2024 | $50.0bn | 0.090% | +0.000 pp | -0.6% | No |
| Jun 2024 | $46.0bn | 0.086% | -0.007 pp | -6.9% | No |
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.