S&P 500 close — Thursday, 20 August 2026

S&P 500 closed down 0.90%

S&P 500 treemap for Thursday, 20 August 2026: each company sized by market capitalisation and coloured by its move that day

S&P 500 movers — August 20, 2026

Of the 503 companies tracked in the S&P 500, 157 rose and 342 fell, with 4 unchanged. Energy led the day at +0.41%, while Consumer Discretionary lagged at -2.25%.

Top gainers · S&P 500

NDSN Nordson Corporation +8.00%
COIN Coinbase Global, Inc. +7.58%
DE Deere & Company +6.94%
LITE Lumentum Holdings Inc. +6.24%
Q Qnity Electronics, Inc. +5.93%
MRVL Marvell Technology, Inc. +5.79%
CF CF Industries Holdings, Inc. +5.61%
MOS Mosaic Company (The) +5.04%

Top losers · S&P 500

MRNA Moderna, Inc. -23.55%
WMT Walmart Inc. -9.15%
ISRG Intuitive Surgical, Inc. -5.84%
CRWD CrowdStrike Holdings, Inc. -5.60%
STLD Steel Dynamics, Inc. -5.20%
BSX Boston Scientific Corporation -5.08%
CCL Carnival Corporation Ltd. -4.95%
AXON Axon Enterprise, Inc. -4.87%

By sector

Energy +0.41%
Real Estate +0.15%
Consumer Staples +0.01%
Materials -0.07%
Technology -0.44%
Utilities -0.56%
Financials -0.99%
Communication Services -1.02%
Industrials -1.17%
Healthcare -1.85%
Consumer Discretionary -2.25%

Open the interactive S&P 500 map ← 19 Aug 2026 21 Aug 2026 →All sessions

The same session elsewhere: NASDAQ Dow Jones TSX

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