How much did AEP move each index today?
S&P 500: AEP moved +0.99% and contributed +0.1 points against the index's −6.6-point move, offsetting 1% of it, ranking #397 of 491 members by contribution to the move.
NASDAQ 100: AEP moved +0.99% and contributed +0.4 points against the index's −77.2-point move, offsetting 1% of it, ranking #71 of 100 members by contribution to the move.
XLU: AEP moved +0.99% and contributed +0.02 points of the index's +0.15-point move (14% of it), ranking #4 of 31 members by contribution to the move.
AEP closed the 2026-10-09 session at 122.81; that day's move sits in the 64th percentile of its own past year. The stock is 11.4% below its 52-week closing high and +8.1% for the year so far.
AEP in the S&P 500 beyond today
| window | AEP return | points contributed | index move | rank |
|---|---|---|---|---|
| 1 week | +2.71% | +0.2 pts | +88.8 pts | #132 of 503 |
| 1 month | −0.53% | −0.1 pts | +219.8 pts | #282 of 503 |
| quarter to date | +3.51% | +0.3 pts | +160.0 pts | #129 of 503 |
| year to date | +8.12% | +0.2 pts | +966.0 pts | #214 of 503 |
Who moved with and against AEP today?
On AEP's side of the S&P 500 tape: AAPL (+7.1 pts), META (+6.1 pts), MSFT (+4.0 pts). Pulling the other way: NVDA (−7.1 pts), MU (−5.0 pts), AVGO (−3.4 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/AEP, free to cite with attribution.