The stock market on December 20, 1985
December 20, 1985, a Friday. The S&P 500 rose 0.44% to close at 210.94. Of 5,749 US stocks that traded, 2,098 rose and 1,509 fell.
The S&P 500+0.44%closed at 210.94
How big a move#13,603of 24,799 trading days since 1928
$100 in the index since$3,652price only, to September 24, 2026
Stocks that rose2,098of 5,749; 1,509 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for2stocks
Biggest rises among the 500 largest companies
| NL Industries, Inc. (NL) | +8.4% |
| Dover (DOV) | +7.3% |
| Pan Am Corp | +6.9% |
Biggest falls among the 500 largest companies
| PNM Resources, Inc. (Holding Co.) (PNM) | -7.8% |
| Berkshire Hathaway (BRK) | -4.6% |
| First Boston Inc (FBC) | -4.4% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ December 19, 1985 · Every December 20 · December 23, 1985 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.