Underfolio

Every trading day › 2017

The stock market on October 27, 2017

October 27, 2017, a Friday. The S&P 500 rose 0.81% to close at 2581.07. Of 3,755 US stocks that traded, 2,161 rose and 1,376 fell.

The S&P 500+0.81%closed at 2581.07
How big a move#7,947of 24,799 trading days since 1928
$100 in the index since$298price only, to September 24, 2026
Stocks that rose2,161of 3,755; 1,376 fell
Biggest companyAppleby market value that day
Last day of trading for1stock

Biggest rises among the 500 largest companies

Align Technology, Inc. (ALGN)+16.2%
Amazon.com (AMZN)+13.2%
SVB Financial (SIVB)+12.6%

Biggest falls among the 500 largest companies

Expedia Group (EXPE)-16.0%
Cerner (CERN)-8.4%
Cincinnati Financial (CINF)-6.6%

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

‹ October 26, 2017 · Every October 27 · October 30, 2017 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.