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Top Stock Gainers May 2026 - Monthly Performance Ranked

The top US-listed stocks of May 2026 by monthly gain, on split-adjusted closes. Ranks 4,389 companies above $100M on NYSE, Nasdaq and NYSE American.
2026
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

May 2026 ranking, complete through May 29, 2026

Filter by sector or market cap, or find a symbol

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
May Gain
Market Cap (today)
Price (today)
Country
Sector
301
AVEX
AEVEX Corp.
+27.17%
$749.41M
$10.83
United States
Industrials
302
SEPN
Septerna, Inc.
+27.10%
$1.89B
$40.41
United States
Healthcare
303
CYPH
Cypherpunk Technologies Inc.
+27.09%
$303.90M
$2.82
United States
Financial Services
304
SDGR
Schrodinger, Inc.
+27.09%
$1.78B
$23.80
United States
Healthcare
305
IPHA
Innate Pharma S.A.
+27.08%
$167.55M
$1.50
France
Healthcare
306
MNDY
monday.com Ltd.
+26.95%
$4.50B
$106.53
Israel
Technology
307
LCUT
Lifetime Brands, Inc.
+26.67%
$193.57M
$8.42
United States
Consumer Cyclical
308
BBAI
BigBear.ai Holdings, Inc.
+26.63%
$1.03B
$2.14
United States
Technology
309
BOBS
Bobs Discount Furniture, Inc.
+26.63%
$2.13B
$16.28
United States
Consumer Cyclical
310
ACVA
ACV Auctions Inc.
+26.59%
$1.78B
$10.50
United States
Consumer Cyclical
311
SIMO
Silicon Motion Technology Corporation
+26.55%
$6.35B
$187.39
Hong Kong
Technology
312
GDYN
Grid Dynamics Holdings, Inc.
+26.54%
$701.75M
$8.65
United States
Technology
313
LODE
Comstock Inc.
+26.52%
$129.95M
$1.71
United States
Basic Materials
314
CABA
Cabaletta Bio, Inc.
+26.42%
$249.23M
$1.47
United States
Healthcare
315
RMBS
Rambus Inc
+26.37%
$9.29B
$85.65
United States
Technology
316
SITM
SiTime
+26.34%
$13.84B
$460.22
United States
Technology
317
PRE
Prenetics Global Limited
+26.27%
$338.57M
$17.35
Hong Kong
Consumer Defensive
318
ELVA
Electrovaya Inc.
+26.24%
$258.49M
$5.17
Canada
Industrials
319
ETON
Eton Pharmaceutcials, Inc.
+26.24%
$1.43B
$50.00
United States
Healthcare
320
PLUG
Plug Power Inc.
+26.20%
$1.93B
$1.38
United States
Industrials
321
HBM
Hudbay Minerals Inc.
+26.18%
$9.76B
$21.98
Canada
Basic Materials
322
VGNT
Versigent PLC
+26.17%
$2.93B
$41.40
Switzerland
Consumer Cyclical
323
HTT
High Templar Tech Limited
+26.16%
$309.01M
$1.99
China
Financial Services
324
BKKT
Bakkt, Inc.
+26.10%
$228.05M
$5.06
United States
Technology
325
BMA
Banco Macro S.A.
+26.08%
$4.22B
$66.04
Argentina
Financial Services
326
BWA
BorgWarner Inc.
+26.07%
$11.19B
$54.96
United States
Consumer Cyclical
327
HNGE
Hinge Health, Inc.
+26.03%
$9.00B
$111.52
United States
Healthcare
328
CGEM
Cullinan Therapeutics, Inc.
+25.98%
$924.78M
$14.37
United States
Healthcare
329
EOSE
Eos Energy Enterprises, Inc.
+25.82%
$630.01M
$1.73
United States
Industrials
330
IMSR
Terrestrial Energy Inc.
+25.76%
$296.62M
$2.80
United States
Utilities
331
KF
KOREA FUND, INC
+25.72%
$226.51M
$54.47
United States
Financial Services
332
QLYS
Qualys, Inc.
+25.72%
$7.50B
$216.70
United States
Technology
333
SRTA
Strata Critical Medical, Inc.
+25.70%
$412.26M
$4.66
United States
Healthcare
334
STM
STMicroelectronics N.V.
+25.70%
$39.41B
$44.02
Switzerland
Technology
335
TDOC
Teladoc Health, Inc.
+25.58%
$1.15B
$6.34
United States
Healthcare
336
FA
First Advantage Corporation
+25.39%
$3.65B
$21.25
United States
Industrials
337
DVA
DaVita Inc.
+25.28%
$11.72B
$183.64
United States
Healthcare
338
ALKS
Alkermes Inc. plc
+25.16%
$7.32B
$43.63
Ireland
Healthcare
339
BBBY
Bed Bath & Beyond, Inc.
+25.10%
$414.69M
$4.35
—
—
340
AAL
American Airlines Group Inc.
+25.02%
$8.02B
$12.11
United States
Industrials
341
CLDT
CHATHAM LODGING TRUST
+25.00%
$653.32M
$14.03
United States
Real Estate
342
AUR
Aurora Innovation, Inc.
+24.83%
$9.64B
$4.81
United States
Consumer Cyclical
343
PSNY
Polestar Automotive Holding UK PLC
+24.82%
$602.91M
$3.67
Sweden
Consumer Cyclical
344
SES
SES AI Corporation
+24.76%
$256.75M
$0.6915
United States
Consumer Cyclical
345
SIF
SIFCO Industries, Inc.
+24.74%
$125.96M
$20.14
United States
Industrials
346
MNPR
Monopar Therapeutics Inc.
+24.72%
$474.21M
$70.65
United States
Healthcare
347
OSPN
OneSpan Inc.
+24.70%
$744.05M
$20.19
United States
Technology
348
PBT
Permian Basin Royalty Trust
+24.68%
$1.57B
$33.68
United States
Energy
349
SPT
Sprout Social, Inc
+24.67%
$779.22M
$12.86
United States
Technology
350
VICR
Vicor Corp
+24.35%
$8.12B
$176.04
United States
Technology
351
CRCL
Circle Internet Group, Inc.
+24.34%
$21.81B
$85.91
United States
Financial Services
352
LUMN
Lumen Technologies, Inc.
+24.32%
$4.71B
$4.57
United States
Communication Services
353
HEI.A
HEICO CORP CL A
+24.30%
$31.69B
$226.75
United States
Industrials
354
ZETA
Zeta Global Holdings Corp.
+24.27%
$8.53B
$33.98
United States
Technology
355
CSIQ
Canadian Solar Inc.
+24.20%
$626.69M
$9.23
Canada
Technology
356
AIP
Arteris, Inc.
+24.14%
$936.84M
$19.06
United States
Technology
357
MRVL
Marvell Technology, Inc.
+24.13%
$205.36B
$228.51
United States
Technology
358
WAT
Waters Corp
+24.04%
$44.57B
$453.67
United States
Healthcare
359
HNRG
Hallador Energy Company
+24.02%
$520.93M
$11.05
United States
Utilities
360
CGNT
Cognyte Software Ltd.
+24.01%
$720.73M
$9.76
Israel
Technology
361
LIND
Lindblad Expeditions Holdings Inc.
+23.85%
$2.24B
$34.24
United States
Consumer Cyclical
362
DXCM
DexCom, Inc.
+23.83%
$29.41B
$77.94
United States
Healthcare
363
LAB
Standard BioTools Inc.
+23.83%
$239.04M
$0.6056
United States
Healthcare
364
GFS
GlobalFoundries Inc.
+23.79%
$24.74B
$44.39
United States
Technology
365
GDRX
GoodRx Holdings, Inc.
+23.73%
$1.21B
$3.54
United States
Healthcare
366
RCAT
Red Cat Holdings, Inc.
+23.72%
$676.52M
$4.43
United States
Industrials
367
OSG
Octave Specialty Group, Inc.
+23.70%
$213.99M
$4.75
United States
Financial Services
368
TOYO
TOYO Co., Ltd
+23.59%
$168.31M
$3.94
Japan
Technology
369
IPX
IperionX Limited
+23.54%
$450.63M
$12.44
United States
Basic Materials
370
CPA
Copa Holdings, S.A.
+23.52%
$5.36B
$131.38
Panama
Industrials
371
NNE
Nano Nuclear Energy Inc.
+23.52%
$652.97M
$12.16
United States
Industrials
372
NTCT
Netscout Systems Inc
+23.50%
$2.88B
$39.67
United States
Technology
373
CLYM
Climb Bio, Inc.
+23.42%
$585.28M
$10.19
United States
Healthcare
374
LRCX
Lam Research Corp
+23.39%
$287.95B
$230.10
United States
Technology
375
LTH
Life Time Group Holdings, Inc.
+23.39%
$9.37B
$41.93
United States
Consumer Cyclical
376
PRTH
Priority Technology Holdings, Inc.
+23.36%
$644.93M
$7.82
United States
Technology
377
OMDA
Omada Health, Inc.
+23.25%
$1.16B
$18.95
United States
Healthcare
378
CVGI
Commercial Vehicle Group, Inc.
+23.21%
$117.02M
$2.88
United States
Consumer Cyclical
379
TEO
Telecom Argentina S.A.
+23.20%
$5.56B
$12.90
Argentina
Communication Services
380
QS
QuantumScape Corporation
+23.18%
$2.50B
$4.03
United States
Consumer Cyclical
381
DY
Dycom Industries, Inc.
+23.16%
$6.77B
$224.56
United States
Industrials
382
MASS
908 Devices Inc.
+23.13%
$474.92M
$11.49
United States
Healthcare
383
MITK
Mitek Systems, Inc.
+23.07%
$841.08M
$18.64
United States
Technology
384
NOVT
Novanta Inc.
+23.01%
$5.32B
$140.80
United States
Technology
385
QFIN
Qfin Holdings, Inc.
+22.94%
$639.53M
$5.26
China
Financial Services
386
LIVN
LivaNova PLC
+22.80%
$4.46B
$80.90
United Kingdom
Healthcare
387
RR
Richtech Robotics Inc.
+22.76%
$261.12M
$1.16
United States
Industrials
388
LOGI
Logitech International SA
+22.75%
$15.74B
$109.66
Switzerland
Technology
389
IMVT
Immunovant, Inc.
+22.67%
$5.87B
$28.41
United States
Healthcare
390
ARE
Alexandria Real Estate Equities, Inc.
+22.64%
$7.40B
$43.02
United States
Real Estate
391
GGAL
Grupo Financiero Galicia SA
+22.62%
$6.09B
$37.91
Argentina
Financial Services
392
WEAV
Weave Communications, Inc.
+22.61%
$595.33M
$7.40
United States
Healthcare
393
ARX
Accelerant Holdings
+22.60%
$4.29B
$19.77
Cayman Islands
Financial Services
394
BLND
Blend Labs, Inc.
+22.60%
$276.72M
$1.17
United States
Technology
395
VVX
V2X, Inc.
+22.59%
$2.32B
$74.09
United States
Industrials
396
MAAS
Maase Inc.
+22.58%
$5.39B
$12.20
China
Technology
397
BJRI
BJ's Restaurants, Inc.
+22.53%
$1.20B
$56.51
United States
Consumer Cyclical
398
DERM
Journey Medical Corporation
+22.52%
$141.69M
$5.02
United States
Healthcare
399
GEO
The GEO Group, Inc.
+22.47%
$3.60B
$27.36
United States
Industrials
400
VSAT
Viasat Inc
+22.32%
$8.47B
$61.47
United States
Technology
Top gain on this page +27.17% AVEX
Rows on this page 100 ranks 301–400
Page 4 of 44
Period May 2026 closed

The same month on news: the biggest gains on news in May 2026 and the biggest drops, each ranked by the move on the day its story landed.

For moves inside a single day, Today's stock movers ranks the biggest gainers and losers on our alert board in the latest trading session.

Looking for a specific symbol?
MARKET LEADERS
52-WEEK LEADER
MGRT +2,350%
Mega Fortune Company L..
2026 YTD LEADER
MGRT +1,466%
Mega Fortune Company L..
MAY 2026 LEADER
HYLN +266%
Hyliion Holdings Corp.
52-Week Top 5 Full List →
1 MGRT +2,350.0% 2 AXTI +759.4% 3 MRNA +648.3% 4 MTC +599.5% 5 BUUU +565.4%
2026 YTD Top 5 Full List →
1 MGRT +1,465.9% 2 BUUU +739.6% 3 ANL +645.1% 4 MRNA +578.5% 5 SNDK +421.5%
May 2026 Top 5 Full List →
1 HYLN +266.0% 2 RXT +254.1% 3 REPL +238.1% 4 AGL +230.2% 5 OTLK +192.0%
Quick Access: 52-Week 2026 YTD May 2026 Market Cap Dividends

This ranking shows the top performing stocks and biggest stock gainers of May 2026, measured from the last close of April to the last close of May.

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.