best mid cap stocks on may 18, 2026

NIQ Global Intelligence (NIQ) had the highest return on May 18 by a mid-cap US stock, returning 11.6%.

ASSETDATE% RETURN
NIQ Global Intelligence (NIQ)
5/18/2026
11.62%
Brady (BRC)
5/18/2026
9.65%
Zeta Global (ZETA)
5/18/2026
9.22%
Appian (APPN)
5/18/2026
9.21%
Qualys (QLYS)
5/18/2026
8.81%
AMC Entertainment (AMC)
5/18/2026
8.8%
Monday (MNDY)
5/18/2026
8.72%
StubHub (STUB)
5/18/2026
8.49%
Transocean (RIG)
5/18/2026
8.44%
Vista Energy, SAB de CV (VIST)
5/18/2026
8.41%
Genpact (G)
5/18/2026
7.99%
Valaris (VAL)
5/18/2026
7.98%
Tenable (TENB)
5/18/2026
7.79%
McGraw Hill (MH)
5/18/2026
7.62%
CBIZ (CBZ)
5/18/2026
7.37%
Dlocal (DLO)
5/18/2026
7.36%
StoneCo  (STNE)
5/18/2026
7.36%
EPAM Systems (EPAM)
5/18/2026
7.27%
TransMedics (TMDX)
5/18/2026
7.07%
ServiceTitan, Inc Class A Common Stock (TTAN)
5/18/2026
7.04%
FTI Consulting (FCN)
5/18/2026
6.96%
Gitlab (GTLB)
5/18/2026
6.72%
Asana  (ASAN)
5/18/2026
6.67%
Cellebrite DI (CLBT)
5/18/2026
6.65%
Exponent (EXPO)
5/18/2026
6.42%
Mid-cap stocks are treated as having a market cap between $2B and $10B.