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2026-08-27 · session in progress, unofficial until close

COSTAR GROUP INC (CSGP) and the market

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

How much did CSGP move each index today?

S&P 500: CSGP moved −2.05% and contributed −0.0 points against the index's +45.4-point move, offsetting 0% of it, ranking #271 of 497 members by contribution to the move.

XLRE: CSGP moved −2.05% and contributed −0.01 points of the index's −0.42-point move (3% of it), ranking #14 of 29 members by contribution to the move.

CSGP closed the 2026-08-26 session at 32.14; that day's move sits in the 21th percentile of its own past year. The stock is 64.5% below its 52-week closing high and −52.2% for the year so far.

CSGP in the S&P 500 beyond today

windowCSGP returnpoints contributedindex moverank
1 week−4.71%−0.1 pts−32.3 pts#157 of 503
1 month+5.97%+0.1 pts+246.9 pts#210 of 503
quarter to date+13.49%+0.2 pts+176.3 pts#223 of 503
year to date−52.20%−2.0 pts+830.2 pts#474 of 503

Who moved with and against CSGP today?

On CSGP's side of the S&P 500 tape: AMZN (−5.2 pts), MU (−2.7 pts), AMD (−1.8 pts). Pulling the other way: NVDA (+47.8 pts), MSFT (+7.7 pts), AVGO (+7.4 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/CSGP, free to cite with attribution.

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