Underfolio

Every trading day › 1970

The stock market on October 30, 1970

October 30, 1970, a Friday. The S&P 500 fell 0.13% to close at 83.25. Of 2,284 US stocks that traded, 748 rose and 1,003 fell.

The S&P 500-0.13%closed at 83.25
How big a move#20,917of 24,799 trading days since 1928
$100 in the index since$9,254price only, to September 24, 2026
Stocks that rose748of 2,284; 1,003 fell
Biggest companyInternational Business Machines Corporationby market value that day

Biggest rises among the 500 largest companies

Aeroquip-Vickers (ANV)+6.8%
Technicon Corp (TCN)+6.4%
Mca Inc. (MCA)+6.0%

Biggest falls among the 500 largest companies

Noram Energy Corp-12.6%
Tektronix (TEK)-6.3%
NL Industries, Inc. (NL)-5.7%

Stock moves count dividends; the index is price only. Market values after 2024 are estimates.

‹ October 29, 1970 · Every October 30 · November 2, 1970 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.