How much did MCK move each index today?
S&P 500: MCK moved +0.92% and contributed +0.1 points of the index's +46.2-point move (0% of it), ranking #107 of 491 members by contribution to the move.
XLV: MCK moved +0.92% and contributed +0.03 points of the index's +2.66-point move (1% of it), ranking #21 of 59 members by contribution to the move.
MCK closed the 2026-10-09 session at 938.77; that day's move sits in the 71th percentile of its own past year. The stock is 5.7% below its 52-week closing high and +14.7% for the year so far.
MCK in the S&P 500 beyond today
| window | MCK return | points contributed | index move | rank |
|---|---|---|---|---|
| 1 week | +4.04% | +0.5 pts | +88.8 pts | #65 of 503 |
| 1 month | +6.57% | +0.7 pts | +219.8 pts | #72 of 503 |
| quarter to date | +9.95% | +1.1 pts | +160.0 pts | #40 of 503 |
| year to date | +14.67% | +1.2 pts | +966.0 pts | #107 of 503 |
Who moved with and against MCK today?
On MCK'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/MCK, free to cite with attribution.