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Top Stock Gainers September 2021 - Monthly Performance Ranked

The top US-listed stocks of September 2021 by monthly gain, on split-adjusted closes. Ranks 3,310 companies above $100M on NYSE, Nasdaq and NYSE American.

Looking for intraday moves instead? Today's stock movers ranks the current session's alert board, so it measures against whichever session is running rather than covering a fixed window.

2021
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

September 2021 ranking, complete through September 30, 2021

30 stocks are withheld from this ranking because their price history is under review.

The gain covers the period; price, market cap, sector and country show each company as it is today.

Swipe or scroll the table sideways for more columns.

Rank
Symbol
Company Name
Sep Gain
Market Cap (today)
Price (today)
Country
Sector
1
CRVS
Corvus Pharmaceu
+107.73%
$1.22B
$14.46
United States
Healthcare
2
AEHR
Aehr Test Sys
+93.62%
$3.32B
$101.73
United States
Technology
3
BMNR
Bitmine Immersion Technolog...
+70.50%
$13.77B
$22.83
United States
Financial Services
4
IPHA
Innate Pharma Sa
+70.44%
$252.44M
$2.26
France
Healthcare
5
IMNM
Immunome Inc
+62.99%
$3.24B
$28.52
United States
Healthcare
6
RKLB
Rocket Lab Usa Inc
+59.07%
$46.40B
$72.57
United States
Industrials
7
AMTX
Aemetis
+55.57%
$149.39M
$2.07
United States
Basic Materials
8
VTLE
Vital Energy Inc
+50.38%
$648.56M
$16.76
United States
Energy
9
VET
Vermilion Energy
+50.23%
$1.95B
$12.73
Canada
Energy
10
ELVA
Electrovaya
+49.25%
$328.73M
$6.64
Canada
Industrials
11
ECHO
Echostar Corp
+44.18%
$25.22B
$86.81
United States
Communication Services
12
SD
Sandridge Energy
+43.44%
$532.40M
$14.36
United States
Energy
13
ESEA
Euroseas
+43.23%
$529.37M
$75.03
Greece
Industrials
14
AMPY
Amplify Energy Corp
+43.01%
$199.82M
$4.82
United States
Energy
15
EP
Empire Petroleum
+41.38%
$135.96M
$3.27
United States
Energy
16
CURR
Currenc Group Inc
+40.25%
$394.11M
$3.51
Singapore
Technology
17
NCMI
National Cinemedia Inc
+40.16%
$238.94M
$2.54
United States
Communication Services
18
SM
Sm Energy
+39.95%
$8.85B
$37.20
United States
Energy
19
UPST
Upstart Holdings, Inc.
+39.52%
$2.95B
$30.30
United States
Financial Services
20
METC
Ramaco Res Inc
+39.25%
$754.32M
$11.90
United States
Basic Materials
21
GTE
Gran Tierra Energy
+37.27%
$350.62M
$9.91
Canada
Energy
22
OBE
Obsidian Energy
+36.78%
$797.37M
$11.95
Canada
Energy
23
CADL
Candel Therapeutics, Inc.
+36.01%
$1.00B
$13.13
United States
Healthcare
24
ASAN
Asana Inc
+34.37%
$2.21B
$9.58
United States
Technology
25
TKNO
Alpha Teknova
+34.11%
$395.15M
$7.36
United States
Healthcare
26
AZ
A2Z Cust2Mate Solutions Corp
+33.87%
$315.23M
$7.16
Canada
Technology
27
PBF
Pbf Energy Inc
+33.85%
$8.72B
$73.53
United States
Energy
28
CTRA
Coterra Energy Inc
+33.83%
$24.72B
$32.56
United States
Energy
29
MTDR
Matador Res Co
+33.43%
$7.22B
$58.38
United States
Energy
30
MNTK
Montauk Renewables Inc
+33.37%
$267.60M
$1.88
United States
Basic Materials
31
RNA
Atrium Therapeutics, Inc
+33.28%
$225.79M
$13.20
United States
Healthcare
32
PR
Permian Resources Corp
+32.94%
$19.89B
$23.75
United States
Energy
33
BLUW
Blue Water Acqsn
+31.56%
$335.36M
$10.38
United States
Financial Services
34
UNFI
United Natural Foods
+31.33%
$2.91B
$48.04
United States
Consumer Defensive
35
LEU
Centrus Energy
+31.27%
$3.72B
$186.26
United States
Energy
36
LEGN
Legend Biotech Corp
+30.88%
$4.24B
$21.82
United States
Healthcare
37
RSI
Rush Street Interactive Inc
+30.59%
$6.30B
$25.80
United States
Consumer Cyclical
38
AUPH
Aurinia Pharmace
+30.33%
$2.22B
$16.65
Canada
Healthcare
39
HNRG
Hallador Energy Company
+29.82%
$725.06M
$15.38
United States
Utilities
40
ONDS
Ondas Holdings Inc.
+29.38%
$4.97B
$8.71
United States
Technology
41
GOGO
Gogo Inc
+29.30%
$363.16M
$2.68
United States
Communication Services
42
SB
Safe Bulkers
+28.61%
$868.64M
$8.53
Monaco
Industrials
43
AR
Antero Resources Corp
+28.13%
$11.66B
$37.94
United States
Energy
44
FANG
Diamondback Ener
+27.66%
$59.01B
$210.72
United States
Energy
45
NOG
Northern O & G
+27.23%
$2.91B
$27.34
United States
Energy
46
OPRX
Optimizerx Corp
+27.10%
$145.23M
$7.71
United States
Healthcare
47
PDS
Precision Drilng
+26.88%
$1.18B
$91.69
Canada
Energy
48
MEC
Mayville Engineering
+26.86%
$554.12M
$21.73
United States
Industrials
49
WFRD
Weatherford
+26.82%
$6.49B
$90.51
United States
Energy
50
UUUU
Energy Fuels
+26.49%
$3.78B
$15.14
United States
Energy
51
SPIR
Spire Global Inc
+26.44%
$566.28M
$13.94
United States
Industrials
52
DRUG
Bright Minds Biosciences Inc
+26.28%
$759.65M
$77.42
United States
Healthcare
53
EPSN
Epsilon Energy
+26.27%
$169.39M
$5.60
United States
Energy
54
PRQR
Proqr Therapeuti
+26.05%
$330.22M
$2.34
Netherlands
Healthcare
55
HRI
Herc Holdings
+25.98%
$5.41B
$161.90
United States
Industrials
56
AMR
Alpha Metallurgical Resourc...
+25.95%
$2.66B
$210.01
United States
Basic Materials
57
RES
Rpc Inc
+25.91%
$1.41B
$6.37
United States
Energy
58
DWSN
Dawson Geophysic
+25.76%
$105.90M
$3.41
United States
Energy
59
ARLP
Alliance Rsc
+25.52%
$3.38B
$26.30
United States
Energy
60
LXU
LSB Industries
+25.28%
$800.61M
$11.12
United States
Basic Materials
61
GEL
Genesis Energy L P
+25.25%
$1.98B
$16.20
United States
Energy
62
IVVD
Invivyd
+25.16%
$293.73M
$0.9965
United States
Healthcare
63
VRDN
Viridian Therapeutics Inc
+24.91%
$2.75B
$24.29
United States
Healthcare
64
EVH
Evolent Health Inc
+24.90%
$535.90M
$4.74
United States
Healthcare
65
ABUS
Arbutus Biopharm
+24.71%
$1.03B
$5.21
United States
Healthcare
66
RGNX
Regenxbio
+24.69%
$707.66M
$10.72
United States
Healthcare
67
ASLE
Aersale Corporation
+24.45%
$265.36M
$5.56
United States
Industrials
68
CF
CF Industries
+24.10%
$19.61B
$129.60
United States
Basic Materials
69
MEOH
Methanex Corp
+24.03%
$4.65B
$60.10
Canada
Basic Materials
70
COP
ConocoPhillips
+24.01%
$162.02B
$134.87
United States
Energy
71
RNGR
Ranger Energy Se
+23.66%
$400.88M
$17.13
United States
Energy
72
UROY
Uranium
+23.63%
$1.67B
$4.38
United States
Energy
73
ACMR
Acm Research
+23.55%
$5.53B
$79.41
United States
Technology
74
AFRM
Affirm Holdings, Inc.
+23.48%
$25.80B
$77.03
United States
Financial Services
75
RCAT
Red Cat Hldgs Inc
+23.40%
$1.47B
$9.62
United States
Industrials
76
APYX
Apyx Medical Corporation
+23.33%
$131.43M
$3.12
United States
Healthcare
77
MEG
Montrose Environmental Grou...
+23.33%
$800.80M
$22.14
United States
Industrials
78
HUSA
Houston American
+23.24%
$239.27M
$7.07
United States
Energy
79
NCSM
Ncs Multistage Hldgs Inc
+23.17%
$130.78M
$49.83
United States
Energy
80
MIRM
Mirum Pharmaceuticals
+23.11%
$5.87B
$96.31
United States
Healthcare
81
AHG
AKSO HEALTH GROUP
+23.08%
$796.48M
$0.9297
China
Healthcare
82
DOCN
Digitalocean Hldgs Inc
+23.01%
$13.60B
$115.64
United States
Technology
83
FRO
Frontline
+22.97%
$9.72B
$43.67
Cyprus
Energy
84
REI
Ring Energy
+22.92%
$385.60M
$1.48
United States
Energy
85
PMTS
CPI Card Group Inc.
+22.90%
$323.32M
$28.04
United States
Financial Services
86
AMRK
A-Mark Precious
+22.59%
$615.86M
$25.01
United States
Financial Services
87
CIVI
Civitas Solns
+22.54%
$2.34B
$27.38
United States
Energy
88
AVIR
Atea Pharmaceuticals, Inc.
+22.46%
$435.51M
$5.43
United States
Healthcare
89
INMD
Inmode Ltd.
+22.46%
$866.62M
$15.06
Israel
Healthcare
90
IMAX
Imax Corp
+22.22%
$2.89B
$52.74
Canada
Communication Services
91
SPB
Spectrum Brands
+22.06%
$2.00B
$86.91
United States
Consumer Defensive
92
IRTC
iRhythm Holdings, Inc
+22.05%
$4.24B
$128.52
United States
Healthcare
93
INOD
Innodata
+22.02%
$2.21B
$64.21
United States
Technology
94
TK
Teekay Corporation Ltd
+21.59%
$1.16B
$13.24
Bermuda
Energy
95
TFIN
Triumph Financial Inc
+21.46%
$1.79B
$74.95
United States
Financial Services
96
TNK
Teekay Tankers
+21.08%
$3.16B
$91.02
Bermuda
Energy
97
DUOL
Duolingo, Inc.
+21.01%
$6.81B
$146.13
United States
Technology
98
GPOR
Gulfport Energy Corp
+21.00%
$3.07B
$173.45
United States
Energy
99
EFXT
Enerflex
+20.99%
$2.48B
$20.34
Canada
Energy
100
EOG
Eog Res Inc
+20.96%
$80.28B
$153.05
United States
Energy
Top gain on this page +107.73% CRVS
Rows on this page 100 ranks 1–100
Page 1 of 34
Period September 2021 closed

Best performing large-cap stocks in September 2021

BMNR Bitmine Immersion Technolog... +70.50% $13.77B
RKLB Rocket Lab Corporation +59.07% $46.40B
ECHO EchoStar Corporation +44.18% $25.22B
CTRA Coterra Energy Inc. +33.83% $24.72B
PR Permian Resources Corporation +32.94% $19.89B

September 2021 Stock Market Momentum

This page answers a current-month trend question with data: which US-listed stocks have shown the strongest price gains so far in September 2021. The ranking is based on observed market performance, not analyst ratings, price targets, or investment recommendations.

Use the list to research momentum, market breadth, sector strength, and catalysts behind large moves. Before acting on any stock, review the company's news, SEC filings, liquidity, volatility, and your own risk constraints.

Looking for a specific Symbol?
#1 CRVS leads with +108% September 2021

Among the 3,310 NYSE, Nasdaq and NYSE American stocks currently eligible for this ranking, CRVS (Corvus Pharmaceu) has the highest gain in September 2021 with +108%. Following are AEHR (+94%) and BMNR (+71%). Top performing sectors: Technology (+36% avg, 1 in top 10), Healthcare (+34% avg, 3 in top 10), Communication Services (+34% avg).

MARKET LEADERS
52-WEEK LEADER
SNDK +3312%
SanDisk Corp
2021 YTD LEADER
LWLG +1418%
Lightwave Logic Inc
SEP 2021 LEADER
CRVS +108%
Corvus Pharmaceu
52-Week Top 5 Full List →
1 SNDK +3311.9% 2 MGRT +2754.7% 3 AXTI +2390.8% 4 ERAS +1008.8% 5 NUAI +899.0%
2021 YTD Top 5 Full List →
1 LWLG +1418.4% 2 AEHR +899.2% 3 EP +814.5% 4 GME +760.2% 5 PECO +536.2%
September 2021 Top 5 Full List →
1 CRVS +107.7% 2 AEHR +93.6% 3 BMNR +70.5% 4 IPHA +70.4% 5 IMNM +63.0%
Quick Access: 52-Week 2021 YTD Sep 2021 Market Cap Dividends

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.

Gains are computed on split-adjusted closes, so a split inside the month does not read as a move. This ranking is informational and is not investment advice.

Frequently Asked Questions

Q Which stock has gained the most in September 2021?
A

CRVS (Corvus Pharmaceu) has the highest monthly gain in this ranking for September 2021, with a gain of 108%. Top performers this month include CRVS, AEHR, BMNR.

Q What stocks gained the most in September 2021?
A

The biggest gainers in September 2021 were: CRVS (+108%), AEHR (+94%), BMNR (+71%), IPHA (+70%), IMNM (+63%). These monthly rankings show which stocks had the strongest short-term momentum.

Q Does this page recommend the best stocks to buy now?
A

No. This page is an informational ranking of stocks that have already gone up during September 2021. It does not make buy, sell, or hold recommendations and should be used as a research starting point, not financial advice.

Q How can this ranking help explain current stock market trends?
A

The ranking shows where price strength is concentrated during September 2021. Comparing the top gainers by sector, market cap, and recent catalysts can help identify momentum themes and market rotation without implying that any listed stock is a recommendation.

Q Which companies does this ranking include?
A

3,310 companies with a market capitalization above $100 million traded on NYSE, Nasdaq and NYSE American, each with at least one trading day inside September 2021. One close inside the month is enough to qualify, so a company that listed during the month is ranked on the part of it that it traded.

Q Which sectors performed best in September 2021?
A

The top performing sectors in September 2021 included Healthcare, Technology, Financial Services, based on the stocks with highest monthly gains. CRVS led the Healthcare sector.

Q How is monthly stock performance calculated?
A

Monthly stock performance is calculated by comparing the closing price on the last trading day of the month to the opening price on the first trading day. Split-adjusted prices ensure accuracy.

Q Where can I find today's top stock gainers and most active stocks?
A

This page ranks stocks by their full-month performance in September 2021. For today's top stock gainers, real-time stock movers, and the most active stocks right now, visit our Momentum Scanner, which tracks live intraday activity across US-listed symbols.

Understanding Monthly Stock Performance

Monthly performance rankings reveal short-term momentum patterns and help identify stocks experiencing rapid price movements:

  • Momentum Research: Stocks showing strong monthly performance can help identify where market attention and price strength are concentrated.
  • Sector Rotation: Monthly rankings can reveal which sectors are gaining favor with investors and where market leadership is shifting.
  • Event-Driven Moves: Earnings releases, product launches, and regulatory approvals often create significant monthly price movements.

Using Monthly Data Effectively

  • Combine Timeframes: Compare monthly gainers with 52-week and YTD performance to identify stocks with both short and long-term momentum.
  • Research the Catalyst: Investigate why top monthly performers moved significantly. The reason for the move matters as much as the percentage gain.
  • Watch for Reversals: Extreme monthly gains sometimes precede corrections, so treat the ranking as a research starting point rather than a buy list.

Evaluate Your Positions

Researching one of this month's top movers? Use our Stock Return Calculator to review historical performance, or the Position Size Calculator to model position sizing and risk before making your own decision.