How much did CTAS move each index today?
S&P 500: CTAS moved −0.79% and contributed −0.1 points against the index's +55.3-point move, offsetting 0% of it, ranking #342 of 501 members by contribution to the move.
NASDAQ 100: CTAS moved −0.79% and contributed −0.4 points against the index's +417.0-point move, offsetting 0% of it, ranking #63 of 101 members by contribution to the move.
XLI: CTAS moved −0.79% and contributed −0.02 points of the index's −1.53-point move (1% of it), ranking #28 of 81 members by contribution to the move.
CTAS closed the 2026-08-27 session at 204.15; that day's move sits in the 28th percentile of its own past year. The stock is 5.7% below its 52-week closing high and +9.1% for the year so far.
CTAS in the S&P 500 beyond today
| window | CTAS return | points contributed | index move | rank |
|---|---|---|---|---|
| 1 week | +0.31% | +0.0 pts | +89.8 pts | #186 of 503 |
| 1 month | −5.47% | −0.5 pts | +414.8 pts | #450 of 503 |
| quarter to date | +20.03% | +1.2 pts | +231.6 pts | #77 of 503 |
| year to date | +9.09% | +0.3 pts | +885.5 pts | #234 of 503 |
Who moved with and against CTAS today?
On CTAS's side of the S&P 500 tape: AMZN (−5.5 pts), GE (−1.8 pts), LLY (−1.6 pts). Pulling the other way: NVDA (+56.4 pts), AVGO (+10.0 pts), MSFT (+8.8 pts).
Every member's contribution, top to bottom, is on the index dashboards; the day's story is in the market-close note. Machine-readable figures for this stock: /api/stock/CTAS, free to cite with attribution.