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2026-08-26 · session in progress, unofficial until close

SMURFIT WESTROCK PLC (SW) and the market

Exact index points SW contributed this session, under each index's own arithmetic, verified against official closes. New here? Read point contribution, explained.

How much did SW move each index today?

S&P 500: SW moved +0.87% and contributed +0.0 points against the index's −3.7-point move, offsetting 1% of it, ranking #339 of 503 members by contribution to the move.

XLB: SW moved +0.87% and contributed +0.02 points of the index's +0.12-point move (13% of it), ranking #7 of 25 members by contribution to the move.

SW closed the 2026-08-25 session at 49.42; that day's move sits in the 73th percentile of its own past year. The stock is 4.7% below its 52-week closing high and +30.5% for the year so far.

SW in the S&P 500 beyond today

windowSW returnpoints contributedindex moverank
1 week+4.48%+0.1 pts−14.5 pts#368 of 503
1 month−0.43%−0.0 pts+264.1 pts#298 of 503
quarter to date+6.83%+0.0 pts+177.9 pts#272 of 503
year to date+30.49%+0.6 pts+831.8 pts#190 of 503

Who moved with and against SW today?

On SW's side of the S&P 500 tape: AAPL (+5.5 pts), MSFT (+2.4 pts), META (+2.2 pts). Pulling the other way: NVDA (−8.2 pts), GOOGL (−3.8 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/SW, free to cite with attribution.

Compiled by the WMTMT attribution engine · updates every session · methodology