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Top Stock Gainers December 2021 - Monthly Performance Ranked

Discover the best stocks of December 2021 ranked by monthly performance. Find out which public companies delivered the highest returns this month, with market caps over $100 million on Nasdaq and NYSE.
2021

This ranking shows the best performing stocks during December 2021, calculated from the first to the last trading day of the month. Using split-adjusted data ensures accurate performance calculations.

Monthly performance rankings help identify short-term momentum and sector rotation patterns that may not be visible in longer timeframes. These rapid movers often present opportunities for traders and momentum investors.

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Data as of March 18, 2026 at 9:30 AM EDT

Rank
Symbol
Company Name
Dec Gain
Market Cap
Price
Country
Sector
2001
-27.04%
422.94 M
$ 6.83
United States
Healthcare
2002
-27.13%
221.86 M
$ 15.17
Netherlands
Technology
2003
-27.68%
710.04 M
$ 4.3
China
Financial Services
2004
-29.2%
173.16 M
$ 17.94
United States
Financial Services
2005
-29.31%
9.13 B
$ 8.73
China
Technology
2006
-30.1%
389.62 M
$ 1.5
United States
Technology
2007
-30.33%
541.91 M
$ 9.44
United States
Consumer Cyclical
2008
-31.39%
719.27 M
$ 1.88
United States
Communication Services
2009
-33.87%
128.96 M
$ 1.3
United States
Consumer Cyclical
2010
-35.04%
151.60 M
$ 5.49
United States
Healthcare
2011
-39.12%
11.47 B
$ 29.77
South Korea
Communication Services
2012
-39.21%
294.31 M
$ 9.63
United States
Technology
2013
-40.06%
9.24 B
$ 27.08
United States
Industrials
2014
-43.29%
1.89 B
$ 3.96
United States
Technology
2015
-47.85%
950.20 M
$ 26.4
United States
Industrials
For the most accurate results, consider cross-referencing our data with other sources.