How much did COHR move each index today?
S&P 500: COHR moved +3.40% and contributed +0.2 points of the index's +46.2-point move (1% of it), ranking #64 of 491 members by contribution to the move.
XLK: COHR moved +3.40% and contributed +0.02 points of the index's +1.00-point move (2% of it), ranking #18 of 73 members by contribution to the move.
COHR closed the 2026-10-09 session at 312.62; that day's move sits in the 72th percentile of its own past year. The stock is 26.8% below its 52-week closing high and +69.4% for the year so far.
COHR in the S&P 500 beyond today
| window | COHR return | points contributed | index move | rank |
|---|---|---|---|---|
| 1 week | −7.25% | −0.5 pts | +88.8 pts | #481 of 503 |
| 1 month | +6.63% | +0.4 pts | +219.8 pts | #96 of 503 |
| quarter to date | +8.62% | +0.5 pts | +160.0 pts | #79 of 503 |
| year to date | +69.38% | +3.1 pts | +966.0 pts | #63 of 503 |
Who moved with and against COHR today?
On COHR's side of the S&P 500 tape: MSFT (+11.3 pts), AMZN (+10.0 pts), PLTR (+2.8 pts). Pulling the other way: AAPL (−7.0 pts), NVDA (−3.7 pts), VZ (−2.7 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/COHR, free to cite with attribution.