Underfolio

Every trading day › 2021

The stock market on September 13, 2021

September 13, 2021, a Monday. The S&P 500 rose 0.23% to close at 4468.73. Of 4,317 US stocks that traded, 2,298 rose and 1,864 fell.

The S&P 500+0.23%closed at 4468.73
How big a move#18,308of 24,799 trading days since 1928
$100 in the index since$172price only, to September 24, 2026
Stocks that rose2,298of 4,317; 1,864 fell
Biggest companyAppleby market value that day
Last day of trading for1stock

Biggest rises among the 500 largest companies

GameStop (GME)+6.8%
Occidental Petroleum (OXY)+6.7%
PG&E Corp. (PCG)+5.6%

Biggest falls among the 500 largest companies

Affirm Holdings (AFRM)-11.6%
10x Genomics, Inc. (TXG)-8.4%
Moderna, Inc. (MRNA)-6.6%

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

‹ September 10, 2021 · Every September 13 · September 14, 2021 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.