How much did NOC move each index today?
S&P 500: NOC moved +1.77% and contributed +0.2 points against the index's −2.9-point move, offsetting 5% of it, ranking #447 of 503 members by contribution to the move.
XLI: NOC moved +1.77% and contributed +0.04 points of the index's +1.89-point move (2% of it), ranking #17 of 83 members by contribution to the move.
NOC closed the 2026-08-25 session at 542.46; that day's move sits in the 18th percentile of its own past year. The stock is 29.4% below its 52-week closing high and −4.1% for the year so far.
NOC in the S&P 500 beyond today
| window | NOC return | points contributed | index move | rank |
|---|---|---|---|---|
| 1 week | −7.92% | −0.7 pts | −14.5 pts | #36 of 503 |
| 1 month | −0.94% | −0.0 pts | +264.1 pts | #286 of 503 |
| quarter to date | +6.51% | +0.5 pts | +177.9 pts | #157 of 503 |
| year to date | −4.13% | −0.8 pts | +831.8 pts | #440 of 503 |
Who moved with and against NOC today?
On NOC's side of the S&P 500 tape: AAPL (+5.5 pts), MSFT (+2.8 pts), META (+1.8 pts). Pulling the other way: NVDA (−8.4 pts), GOOGL (−3.7 pts), LLY (−3.3 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/NOC, free to cite with attribution.