The stock market on September 20, 2017
September 20, 2017, a Wednesday. The S&P 500 rose 0.06% to close at 2508.24. Of 3,766 US stocks that traded, 2,134 rose and 1,407 fell.
The S&P 500+0.06%closed at 2508.24
How big a move#22,990of 24,799 trading days since 1928
$100 in the index since$307price only, to September 24, 2026
Stocks that rose2,134of 3,766; 1,407 fell
Biggest companyAppleby market value that day
Last day of trading for1stock
Biggest rises among the 500 largest companies
| Alnylam Pharmaceuticals, Inc. (ALNY) | +51.7% |
| TransUnion (TRU) | +6.5% |
| Advanced Micro Devices (AMD) | +4.7% |
Biggest falls among the 500 largest companies
| General Mills (GIS) | -5.8% |
| Qorvo, Inc. (QRVO) | -5.4% |
| L Brands (LB) | -5.1% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
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Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.