How much did IBKR move each index today?
S&P 500: IBKR moved −1.50% and contributed −0.1 points against the index's +6.4-point move, offsetting 1% of it, ranking #449 of 503 members by contribution to the move.
XLF: IBKR moved −1.50% and contributed −0.00 points of the index's −0.09-point move (5% of it), ranking #11 of 76 members by contribution to the move.
IBKR closed the 2026-08-25 session at 98.19; that day's move sits in the 98th percentile of its own past year. The stock is at its 52-week closing high and +53.0% for the year so far.
IBKR in the S&P 500 beyond today
| window | IBKR return | points contributed | index move | rank |
|---|---|---|---|---|
| 1 week | +8.43% | +0.4 pts | −14.5 pts | #443 of 503 |
| 1 month | +6.42% | +0.4 pts | +264.1 pts | #134 of 503 |
| quarter to date | +12.81% | +0.7 pts | +177.9 pts | #128 of 503 |
| year to date | +53.00% | +1.7 pts | +831.8 pts | #99 of 503 |
Who moved with and against IBKR today?
On IBKR's side of the S&P 500 tape: NVDA (−3.6 pts), GOOGL (−2.6 pts), GOOG (−2.2 pts). Pulling the other way: AAPL (+4.3 pts), MSFT (+3.1 pts), ORCL (+0.9 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/IBKR, free to cite with attribution.