best small stock 4/18 to 5/18

Seaport Therapeutics, Inc Common Stock (SPTX) had the highest return between April 18, 2026 and May 18, 2026 by a small-cap US stock, returning 157,300%.

ASSETDATE% RETURN
Seaport Therapeutics, Inc Common Stock (SPTX)
4/18/2026 - 5/18/2026
157,300%
P3 Health Partners (PIII)
4/18/2026 - 5/18/2026
251.07%
Rackspace Technology  (RXT)
4/18/2026 - 5/18/2026
242.86%
agilon health (AGL)
4/18/2026 - 5/18/2026
199.31%
Everspin Technologies (MRAM)
4/18/2026 - 5/18/2026
171.14%
FuelCell Energy (FCEL)
4/18/2026 - 5/18/2026
148.46%
Bandwidth (BAND)
4/18/2026 - 5/18/2026
146.91%
Digi Power X (DGXX)
4/18/2026 - 5/18/2026
132.8%
Replimune (REPL)
4/18/2026 - 5/18/2026
130.88%
Entravision Communications (EVC)
4/18/2026 - 5/18/2026
127.92%
Hyliion (HYLN)
4/18/2026 - 5/18/2026
115.38%
Ambiq Micro (AMBQ)
4/18/2026 - 5/18/2026
107.38%
Vishay Precision (VPG)
4/18/2026 - 5/18/2026
96.91%
POET Technologies (POET)
4/18/2026 - 5/18/2026
94.13%
Purecycle Technologies (PCT)
4/18/2026 - 5/18/2026
93.51%
Backblaze (BLZE)
4/18/2026 - 5/18/2026
83.42%
Boost Run Inc Class A Common Stock (BRUN)
4/18/2026 - 5/18/2026
83.16%
Kopin (KOPN)
4/18/2026 - 5/18/2026
68.6%
W&T Offshore (WTI)
4/18/2026 - 5/18/2026
63.12%
CEVA (CEVA)
4/18/2026 - 5/18/2026
57.11%
SharonAI Holdings, Inc Class A Common Stock (SHAZ)
4/18/2026 - 5/18/2026
55.95%
Aspen Aerogels (ASPN)
4/18/2026 - 5/18/2026
54.49%
Westrock Coffee (WEST)
4/18/2026 - 5/18/2026
54.26%
Xerox (XRX)
4/18/2026 - 5/18/2026
54.07%
Arteris (AIP)
4/18/2026 - 5/18/2026
51.32%
Small-cap stocks are treated as having a market cap between $300M and $2B.