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2026-08-27 · official close

PALO ALTO NETWORKS INC (PANW) and the market

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

How much did PANW move each index today?

S&P 500: PANW moved +12.83% and contributed +4.3 points of the index's +55.3-point move (8% of it), ranking #5 of 501 members by contribution to the move.

NASDAQ 100: PANW moved +12.83% and contributed +22.1 points of the index's +417.0-point move (5% of it), ranking #6 of 101 members by contribution to the move.

XLK: PANW moved +12.83% and contributed +0.41 points of the index's +5.74-point move (7% of it), ranking #3 of 73 members by contribution to the move.

PANW closed the 2026-08-27 session at 382.85; that day's move sits in the 99th percentile of its own past year. The stock is 3.3% below its 52-week closing high and +107.8% for the year so far.

PANW in the S&P 500 beyond today

windowPANW returnpoints contributedindex moverank
1 week+9.52%+3.3 pts+89.8 pts#9 of 503
1 month+21.87%+7.3 pts+414.8 pts#11 of 503
quarter to date+12.27%+5.9 pts+231.6 pts#11 of 503
year to date+107.84%+19.7 pts+885.5 pts#11 of 503

Who moved with and against PANW today?

On PANW's side of the S&P 500 tape: NVDA (+56.4 pts), AVGO (+10.0 pts), MSFT (+8.8 pts). Pulling the other way: AMZN (−5.5 pts), GE (−1.8 pts), LLY (−1.6 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/PANW, free to cite with attribution.

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