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Top Stock Gainers May 2021 - Monthly Performance Ranked

Track the top performing stocks of May 2021 ranked by monthly price gain. See which stock gainers delivered the highest gains this month, with market caps over $100 million on Nasdaq and NYSE.
2021

This ranking shows the top performing stocks and biggest stock gainers during May 2021, calculated from the first to the last trading day of the month. It shows which stocks are going up this month, with split-adjusted data used for consistent performance calculations.

Monthly performance rankings can reveal price strength, sustained momentum, sector rotation, and event-driven moves that are not visible in one-day movers lists. The table is informational only and does not recommend any stock to buy, sell, or hold.

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Data as of July 6, 2026 at 11:01 AM EDT

Rank
Symbol
Company Name
May Gain
Market Cap
Price
Country
Sector
3801
-32.35%
583.11 M
$ 1.65
United States
Financial Services
3802
-32.71%
866.48 M
$ 3.24
United States
Financial Services
3803
-33.51%
1.53 B
$ 7.61
United States
Industrials
3804
-33.73%
8.88 B
$ 318.52
United States
Healthcare
3805
-34.43%
139.42 M
$ 0.7906
United States
Financial Services
3806
-35.62%
1.59 B
$ 10.44
United States
Industrials
3807
-36.51%
211.35 M
$ 0.2835
Singapore
Technology
3808
-37.6%
417.29 M
$ 1.75
China
Consumer Defensive
3809
-37.9%
3.14 B
$ 42.24
United States
Communication Services
3810
-38.78%
5.29 B
$ 56.92
United States
Healthcare
3811
-40%
408.80 M
$ 2.27
United States
Healthcare
3812
-40%
172.55 M
$ 2.57
Canada
Basic Materials
3813
-40.04%
338.66 M
$ 3.26
United States
Healthcare
3814
-40.38%
1.07 B
$ 6.97
United States
Technology
3815
-41.45%
165.64 M
$ 3.87
United States
Healthcare
3816
-41.53%
1.92 B
$ 4.31
United States
Healthcare
3817
-42.01%
364.94 M
$ 2.1
United States
Healthcare
3818
-42.17%
629.31 M
$ 13.55
United States
Technology
3819
-44.32%
511.17 M
$ 1.51
United States
Healthcare
3820
-50.45%
115.18 M
$ 2.01
United States
Healthcare
3821
-79.19%
20.16 B
$ 5.75
Brazil
Utilities
3822
-79.21%
1.06 B
$ 19.1
United States
Financial Services
3823
-81.66%
1.00 B
$ 8.6
United States
Financial Services
3824
-81.72%
75.24 B
$ 68.6
United States
Consumer Cyclical
3825
-100%
2.16 B
$ 25.34
For the most accurate results, consider cross-referencing our data with other sources.