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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 3,730 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

The same month on news: the biggest gains on news in September 2021 and the biggest drops, each ranked by the move on the day its story landed.

27 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 Pharmaceuticals, Inc.
+107.73%
$828.59M
$9.85
United States
Healthcare
2
AEHR
Aehr Test Systems
+93.62%
$2.26B
$69.21
United States
Technology
3
BMNR
BitMine Immersion Technologies, Inc.
+70.50%
$14.09B
$23.36
United States
Financial Services
4
IPHA
Innate Pharma S.A.
+70.44%
$165.32M
$1.48
France
Healthcare
5
CRK
Comstock Resources, Inc.
+65.87%
$3.96B
$13.50
United States
Energy
6
IMNM
Immunome, Inc.
+62.99%
$2.05B
$17.40
United States
Healthcare
7
BTE
Baytex Energy Corp.
+60.59%
$3.61B
$5.16
Canada
Energy
8
RKLB
Rocket Lab Corporation
+59.07%
$35.33B
$55.25
United States
Industrials
9
AMTX
Aemetis, Inc. (DE)
+55.57%
$104.29M
$1.45
United States
Basic Materials
10
VTLE
Vital Energy, Inc.
+50.38%
$648.56M
$16.76
United States
Energy
11
VET
VERMILION ENERGY INC.
+50.23%
$1.93B
$12.65
Canada
Energy
12
ELVA
Electrovaya Inc.
+49.25%
$267.99M
$5.36
Canada
Industrials
13
ATER
Aterian, Inc.
+46.35%
$152.26M
$0.5860
United States
Consumer Cyclical
14
RRC
Range Resources Corp
+45.91%
$9.68B
$41.42
United States
Energy
15
ECHO
EchoStar Corporation
+44.18%
$25.26B
$86.85
United States
Communication Services
16
SD
SandRidge Energy, Inc.
+43.44%
$515.72M
$13.91
United States
Energy
17
ESEA
Euroseas Ltd.(Marshall Islands)
+43.23%
$475.89M
$67.45
Greece
Industrials
18
AMPY
Amplify Energy Corp.
+43.01%
$180.34M
$4.35
United States
Energy
19
EP
Empire Petroleum Corporation
+41.38%
$136.04M
$3.27
United States
Energy
20
CURR
Currenc Group Inc.
+40.25%
$299.79M
$2.67
Singapore
Technology
21
NCMI
National CineMedia, Inc.
+40.16%
$211.66M
$2.25
United States
Communication Services
22
SM
SM Energy Company
+39.95%
$8.92B
$37.52
United States
Energy
23
UPST
Upstart Holdings, Inc.
+39.52%
$2.41B
$24.75
United States
Financial Services
24
METC
Ramaco Resources, Inc.
+39.25%
$531.12M
$8.34
United States
Basic Materials
25
GTE
Gran Tierra Energy Inc.
+37.27%
$375.38M
$10.61
Canada
Energy
26
OBE
Obsidian Energy Ltd.
+36.78%
$765.34M
$11.47
Canada
Energy
27
CADL
Candel Therapeutics, Inc.
+36.01%
$681.78M
$8.91
United States
Healthcare
28
ASAN
Asana, Inc.
+34.37%
$2.39B
$10.42
United States
Technology
29
TKNO
Alpha Teknova, Inc.
+34.11%
$408.03M
$7.60
United States
Healthcare
30
AZ
A2Z Cust2Mate Solutions Corp.
+33.87%
$253.59M
$5.76
Canada
Technology
31
PBF
PBF ENERGY INC.
+33.85%
$10.31B
$86.99
United States
Energy
32
CTRA
Coterra Energy Inc.
+33.83%
$24.72B
$32.56
United States
Energy
33
MTDR
MATADOR RESOURCES COMPANY
+33.43%
$6.65B
$53.77
United States
Energy
34
MNTK
Montauk Renewables, Inc.
+33.37%
$301.76M
$2.12
United States
Basic Materials
35
PR
Permian Resources Corporation
+32.94%
$19.77B
$23.61
United States
Energy
36
EPM
Evolution Petroleum Corporation
+32.09%
$147.43M
$3.67
United States
Energy
37
BLUW
Blue Water Acquisition Corp. III
+31.56%
$335.36M
$10.38
United States
Financial Services
38
UNFI
United Natural Foods Inc
+31.33%
$2.91B
$48.26
United States
Consumer Defensive
39
URG
Ur-Energy Inc.
+31.30%
$356.09M
$0.8950
United States
Energy
40
LEU
Centrus Energy Corp.
+31.27%
$2.60B
$127.01
United States
Energy
41
LEGN
Legend Biotech Corporation
+30.88%
$3.85B
$19.80
United States
Healthcare
42
RSI
Rush Street Interactive, Inc.
+30.59%
$4.63B
$18.96
United States
Consumer Cyclical
43
AUPH
Aurinia Pharmaceuticals Inc
+30.33%
$2.23B
$16.73
Canada
Healthcare
44
HNRG
Hallador Energy Company
+29.82%
$599.19M
$12.71
United States
Utilities
45
ONDS
Ondas Inc.
+29.38%
$3.70B
$6.35
United States
Technology
46
GOGO
Gogo Inc.
+29.30%
$304.89M
$2.25
United States
Communication Services
47
PED
PEDEVCO Corp.
+28.70%
$179.18M
$13.48
United States
Energy
48
SB
Safe Bulkers, Inc.
+28.61%
$912.94M
$8.02
Monaco
Industrials
49
AR
ANTERO RESOURCES CORPORATION
+28.13%
$11.20B
$36.44
United States
Energy
50
FANG
Diamondback Energy, Inc.
+27.66%
$54.77B
$195.60
United States
Energy
51
NOG
Northern Oil and Gas, Inc.
+27.23%
$2.74B
$25.75
United States
Energy
52
OPRX
OptimizeRx Corporation
+27.10%
$166.70M
$8.85
United States
Healthcare
53
PDS
Precision Drilling Corporation
+26.88%
$1.05B
$83.54
Canada
Energy
54
MEC
Mayville Engineering Company, Inc.
+26.86%
$362.36M
$14.21
United States
Industrials
55
WFRD
Weatherford International plc
+26.82%
$5.36B
$75.00
United States
Energy
56
UUUU
Energy Fuels Inc.
+26.49%
$2.27B
$8.57
United States
Energy
57
SPIR
Spire Global, Inc.
+26.44%
$363.77M
$9.30
United States
Industrials
58
DRUG
Bright Minds Biosciences Inc.
+26.28%
$534.73M
$54.21
United States
Healthcare
59
EPSN
Epsilon Energy Ltd.
+26.27%
$178.07M
$5.88
United States
Energy
60
PRQR
ProQR Therapeutics N.V.
+26.05%
$204.62M
$1.45
Netherlands
Healthcare
61
HRI
Herc Holdings Inc.
+25.98%
$4.15B
$124.00
United States
Industrials
62
AMR
Alpha Metallurgical Resources, Inc.
+25.95%
$2.15B
$169.71
United States
Basic Materials
63
RES
RPC, Inc.
+25.91%
$1.31B
$5.92
United States
Energy
64
DVN
Devon Energy Corporation
+25.74%
$54.16B
$49.24
United States
Energy
65
ARLP
Alliance Resource Partners LP
+25.52%
$3.24B
$25.19
United States
Energy
66
LXU
LSB INDUSTRIES INC
+25.28%
$753.09M
$10.46
United States
Basic Materials
67
GEL
Genesis Energy, L.P.
+25.25%
$1.70B
$13.94
United States
Energy
68
IVVD
Invivyd, Inc.
+25.16%
$197.13M
$0.6688
United States
Healthcare
69
CAR
Avis Budget Group, Inc.
+25.05%
$3.88B
$109.77
United States
Industrials
70
VRDN
Viridian Therapeutics, Inc.
+24.91%
$2.22B
$19.56
United States
Healthcare
71
EVH
Evolent Health, Inc
+24.90%
$550.60M
$4.87
United States
Healthcare
72
KOS
Kosmos Energy Ltd.
+24.89%
$1.60B
$2.68
United States
Energy
73
ABUS
Arbutus Biopharma Corporation
+24.71%
$657.55M
$4.29
United States
Healthcare
74
RGNX
REGENXBIO Inc.
+24.69%
$472.65M
$7.16
United States
Healthcare
75
ASLE
AerSale Corporation
+24.45%
$223.84M
$4.69
United States
Industrials
76
CF
CF Industries Holding, Inc.
+24.10%
$18.13B
$119.77
United States
Basic Materials
77
MEOH
Methanex Corp
+24.03%
$4.92B
$63.61
Canada
Basic Materials
78
COP
ConocoPhillips
+24.01%
$170.27B
$141.73
United States
Energy
79
RNGR
Ranger Energy Services, Inc.
+23.66%
$342.37M
$14.44
United States
Energy
80
UROY
Uranium Royalty Corp.
+23.63%
$1.41B
$3.71
United States
Energy
81
ACMR
ACM Research, Inc.
+23.55%
$4.05B
$58.09
United States
Technology
82
AFRM
Affirm Holdings, Inc.
+23.48%
$25.62B
$75.92
United States
Financial Services
83
RCAT
Red Cat Holdings, Inc.
+23.40%
$748.30M
$4.90
United States
Industrials
84
APYX
Apyx Medical Corporation
+23.33%
$107.84M
$2.56
United States
Healthcare
85
MEG
Montrose Environmental Group, Inc.
+23.33%
$800.80M
$22.14
United States
Industrials
86
HUSA
Houston American Energy Corp
+23.24%
$239.27M
$7.07
United States
Energy
87
SLI
Standard Lithium Ltd.
+23.18%
$343.03M
$1.39
Canada
Basic Materials
88
NCSM
NCS Multistage Holdings, Inc.
+23.17%
$140.02M
$53.35
United States
Energy
89
MIRM
Mirum Pharmaceuticals, Inc.
+23.11%
$5.35B
$82.39
United States
Healthcare
90
AHG
Akso Health Group
+23.08%
$1.16B
$1.35
China
Healthcare
91
DOCN
DigitalOcean Holdings, Inc.
+23.01%
$12.87B
$109.47
United States
Technology
92
FRO
Frontline Plc
+22.97%
$11.70B
$52.54
Cyprus
Energy
93
REI
Ring Energy Inc.
+22.92%
$341.31M
$1.31
United States
Energy
94
PMTS
CPI Card Group Inc.
+22.90%
$297.91M
$25.70
United States
Financial Services
95
AMRK
A-Mark Precious Metals, Inc.
+22.59%
$615.86M
$25.01
United States
Financial Services
96
CIVI
Civitas Resources, Inc.
+22.54%
$2.34B
$27.38
United States
Energy
97
AVIR
Atea Pharmaceuticals, Inc.
+22.46%
$363.33M
$4.53
United States
Healthcare
98
INMD
InMode Ltd.
+22.46%
$824.03M
$14.32
Israel
Healthcare
99
SSL
Sasol Limited
+22.34%
$10.21B
$15.92
South Africa
Basic Materials
100
IMAX
Imax Corp
+22.22%
$2.83B
$51.55
Canada
Communication Services
S&P 500 fund (SPY) -5.02%
Finished higher 30% of 3,730
Median move -4.0%
Leading sector Energy +9.9% median
Lagging sector Basic Materials -7.8% median

Over September 2021, 30% of the 3,730 ranked companies finished higher and the median move was -4.0%; Energy led on median (+9.9%) and Basic Materials lagged (-7.8%). The S&P 500 fund (SPY) moved -5.02% between its Sep 1, 2021 and Sep 30, 2021 closes. Each ranked company's gain runs from its own first close inside the period, so a company listed later in the period is measured over a shorter window.

Top gain on this page +107.73% CRVS
Rows on this page 100 ranks 1–100
Page 1 of 38
Period September 2021 closed

Best performing large-cap stocks in September 2021

BMNR Bitmine Immersion Technolog... +70.50% $14.09B
RKLB Rocket Lab Corporation +59.07% $35.33B
ECHO EchoStar Corporation +44.18% $25.26B
PBF PBF Energy Inc. +33.85% $10.31B
CTRA Coterra Energy Inc. +33.83% $24.72B

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 3,730 NYSE, Nasdaq and NYSE American stocks currently eligible for this ranking, CRVS (Corvus Pharmaceuticals, Inc.) has the highest gain in September 2021 with +108%. Following are AEHR (+94%) and BMNR (+71%). Top performing sectors: Technology (+40% avg, 1 in top 10), Consumer Cyclical (+38% avg), Healthcare (+35% avg, 3 in top 10).

MARKET LEADERS
52-WEEK LEADER
MGRT +1886%
Mega Fortune Company L..
2021 YTD LEADER
RGC +9999%
Regencell Bioscience H..
SEP 2021 LEADER
CRVS +108%
Corvus Pharmaceuticals..
52-Week Top 5 Full List →
1 MGRT +1885.7% 2 AXTI +1184.0% 3 SNDK +895.2% 4 MRNA +809.3% 5 ANL +637.2%
2021 YTD Top 5 Full List →
1 RGC +9999.0% 2 AEHL +6181.5% 3 GEN +4802.4% 4 LWLG +1418.4% 5 AMC +1253.2%
September 2021 Top 5 Full List →
1 CRVS +107.7% 2 AEHR +93.6% 3 BMNR +70.5% 4 IPHA +70.4% 5 CRK +65.9%
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.
What this ranking covers
Universe
US-listed companies on NYSE, Nasdaq and NYSE American.
Floors
Market cap of at least $100 million, and one close inside the month to measure from.
Exclusions
Stocks whose price history is under review are withheld, and their count is stated above.
Measured on
Split-adjusted closes, from the first close inside the month to the last one in it.
Refreshed
Rebuilt once the session behind those closes has settled. The date above the table names that session, not the moment the table was written.

Frequently Asked Questions

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

CRVS (Corvus Pharmaceuticals, Inc.) 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%), CRK (+66%). 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

3,730 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 five highest-gaining companies in September 2021 sit in Healthcare, Technology, Financial Services, with the leader CRVS in Healthcare. That describes the top of this list, not a sector ranking; the market-context strip above the table reports the median move of each sector's ranked companies.

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 closing price on its first trading day, both split-adjusted. A company whose trading history begins inside the month is measured from its first close.

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.