Market Cap Map — 20 Aug 2026

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Aug 20, 2026

S&P 500 movers — August 20, 2026

S&P 500 closed down 0.90%

Of the 502 companies tracked in the S&P 500, 156 rose and 342 fell, with 4 unchanged. Energy led the day at +0.41%, while Consumer Staples lagged at -2.54%.

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%
  • OKTA Okta, Inc. -4.99%
  • CCL Carnival Corporation Ltd. -4.95%
By sector
  • Energy +0.41%
  • Real Estate +0.15%
  • Materials -0.13%
  • Technology -0.37%
  • Utilities -0.57%
  • Communication Services -0.87%
  • Financials -0.97%
  • Industrials -1.16%
  • Consumer Discretionary -1.74%
  • Healthcare -1.83%
  • Consumer Staples -2.54%
S&P 500 Market News· 20 Aug 2026
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