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

LYONDELLBASELL INDU CL A (LYB) and the market

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

How much did LYB move each index today?

S&P 500: LYB moved −0.82% and contributed −0.0 points against the index's +6.4-point move, offsetting 0% of it, ranking #396 of 503 members by contribution to the move.

XLB: LYB moved −0.82% and contributed −0.01 points against the index's +0.43-point move, offsetting 2% of it, ranking #23 of 25 members by contribution to the move.

LYB closed the 2026-08-25 session at 62.54; that day's move sits in the 4th percentile of its own past year. The stock is 24.1% below its 52-week closing high and +47.7% for the year so far.

LYB in the S&P 500 beyond today

windowLYB returnpoints contributedindex moverank
1 week−3.26%−0.1 pts−14.5 pts#155 of 503
1 month+7.82%+0.2 pts+264.1 pts#192 of 503
quarter to date+18.78%+0.4 pts+177.9 pts#168 of 503
year to date+47.66%+0.7 pts+831.8 pts#171 of 503

Who moved with and against LYB today?

On LYB'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/LYB, free to cite with attribution.

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