Universe›Industrials›Human Resource & Employment Services›Human Resource & Employment Services›Paychex
Observatory · observe first
Paychex
PAYX · United States · Human Resource & Employment Services · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Latest available · not live
20182026
Universe weight
0.059%
12M weight contribution
-0.032 pp
3M weight contribution
-0.002 pp
12M price return
-18.9%
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 | $35.1bn | 0.059% | -0.032 pp | -18.9% | No |
| Aug 2026 | $45.3bn | 0.075% | -0.029 pp | -4.7% | Yes |
| Jul 2026 | $41.6bn | 0.073% | -0.037 pp | -15.5% | Yes |
| Jun 2026 | $35.2bn | 0.061% | -0.052 pp | -29.6% | Yes |
| May 2026 | $34.7bn | 0.060% | -0.069 pp | -36.1% | Yes |
| Apr 2026 | $33.2bn | 0.045% | -0.082 pp | -34.8% | No |
| Mar 2026 | $33.0bn | 0.048% | -0.084 pp | -38.2% | No |
| Feb 2026 | $33.6bn | 0.046% | -0.076 pp | -36.1% | No |
| Jan 2026 | $37.0bn | 0.071% | -0.047 pp | -27.2% | No |
| Dec 2025 | $40.3bn | 0.079% | -0.036 pp | -17.5% | No |
| Nov 2025 | $40.2bn | 0.079% | -0.037 pp | -21.2% | No |
| Oct 2025 | $42.1bn | 0.083% | -0.035 pp | -13.6% | No |
| Sep 2025 | $45.6bn | 0.091% | -0.021 pp | -2.9% | No |
| Aug 2025 | $50.2bn | 0.104% | -0.010 pp | +9.3% | No |
| Jul 2025 | $52.0bn | 0.110% | +0.027 pp | +16.9% | No |
| Jun 2025 | $52.4bn | 0.113% | +0.033 pp | +26.2% | No |
| May 2025 | $56.9bn | 0.129% | +0.046 pp | +35.2% | Yes |
| Apr 2025 | $53.0bn | 0.127% | +0.003 pp | +27.5% | Yes |
| Mar 2025 | $55.6bn | 0.132% | +0.009 pp | +29.4% | Yes |
| Feb 2025 | $54.6bn | 0.122% | -0.004 pp | +27.4% | Yes |
| Jan 2025 | $53.2bn | 0.118% | -0.012 pp | +25.0% | Yes |
| Dec 2024 | $50.5bn | 0.114% | -0.013 pp | +21.3% | Yes |
| Nov 2024 | $52.6bn | 0.116% | -0.021 pp | +23.6% | Yes |
| Oct 2024 | $50.1bn | 0.118% | -0.019 pp | +29.4% | 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.