Universe›Communication Services›Integrated Telecommunication Services›Integrated Telecommunication Services›AT&T
Observatory · observe first
AT&T
T · United States · Integrated Telecommunication Services · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Latest available · not live
20182026
Universe weight
0.281%
12M weight contribution
-0.123 pp
3M weight contribution
+0.031 pp
12M price return
-9.5%
Share of matched S&P 500 members
Monthly observations through Sep 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 |
|---|---|---|---|---|---|
| Sep 2026 | $167.2bn | 0.281% | -0.123 pp | -9.5% | Yes |
| Aug 2026 | $177.4bn | 0.295% | -0.139 pp | -7.4% | Yes |
| Jul 2026 | $159.3bn | 0.278% | -0.135 pp | -11.2% | Yes |
| Jun 2026 | $143.8bn | 0.250% | -0.199 pp | -25.4% | No |
| May 2026 | $172.3bn | 0.299% | -0.155 pp | -6.9% | No |
| Apr 2026 | $181.6bn | 0.246% | -0.232 pp | -1.6% | No |
| Mar 2026 | $202.9bn | 0.296% | -0.186 pp | +7.0% | No |
| Feb 2026 | $196.1bn | 0.269% | -0.171 pp | +6.7% | No |
| Jan 2026 | $185.8bn | 0.356% | -0.023 pp | +15.3% | No |
| Dec 2025 | $176.1bn | 0.345% | -0.026 pp | +14.0% | No |
| Nov 2025 | $184.5bn | 0.362% | -0.004 pp | +17.4% | No |
| Oct 2025 | $175.5bn | 0.344% | -0.036 pp | +14.7% | No |
| Sep 2025 | $201.9bn | 0.404% | +0.037 pp | +34.4% | No |
| Aug 2025 | $209.4bn | 0.434% | +0.089 pp | +54.1% | No |
| Jul 2025 | $196.0bn | 0.413% | +0.166 pp | +49.1% | No |
| Jun 2025 | $208.2bn | 0.449% | +0.192 pp | +59.3% | Yes |
| May 2025 | $200.0bn | 0.453% | +0.204 pp | +60.5% | Yes |
| Apr 2025 | $199.3bn | 0.479% | +0.129 pp | +72.6% | Yes |
| Mar 2025 | $203.0bn | 0.482% | +0.133 pp | +70.0% | Yes |
| Feb 2025 | $196.8bn | 0.440% | +0.093 pp | +71.3% | Yes |
| Jan 2025 | $170.3bn | 0.379% | +0.003 pp | +41.9% | Yes |
| Dec 2024 | $163.4bn | 0.370% | +0.013 pp | +44.1% | Yes |
| Nov 2024 | $166.2bn | 0.367% | -0.003 pp | +48.4% | Yes |
| Oct 2024 | $161.7bn | 0.380% | +0.006 pp | +55.4% | 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.