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Top Stock Gainers September 2021 - Monthly Performance Ranked

Track the top performing stocks of September 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 September 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 May 19, 2026 at 5:11 PM EDT

Rank
Symbol
Company Name
Sep Gain
Market Cap
Price
Country
Sector
3901
-47.58%
351.48 M
$ 4.18
United States
Utilities
3902
-49.08%
5.25 B
$ 41.03
United States
Healthcare
3903
-55.43%
966.44 M
$ 7.12
United States
Healthcare
3904
-55.57%
737.31 M
$ 7.425
United States
Healthcare
3905
-59.92%
530.25 M
$ 3.56
United States
Healthcare
3906
-64.34%
6.57 B
$ 102.18
United States
Healthcare
3907
-64.76%
536.01 M
$ 11.06
United States
Financial Services
3908
-69.47%
130.07 M
$ 3.56
United States
Technology
3909
-90.11%
429.44 M
$ 20.97
United States
Healthcare
3910
-100%
27.60 B
$ 42.33
For the most accurate results, consider cross-referencing our data with other sources.