best performing mid cap stocks on february 27, 2026

Applied Opt (AAOI) had the highest return on February 27 by a mid-cap US stock, returning 27.8%.

ASSETDATE% RETURN
Applied Opt (AAOI)
2/27/2026
27.76%
Baldwin Insurance (BWIN)
2/27/2026
15.17%
BillionToOne, Inc Class A Common Stock (BLLN)
2/27/2026
10.29%
DoubleVerify (DV)
2/27/2026
10.25%
BioCryst Pharmaceuticals (BCRX)
2/27/2026
10.06%
Duolingo (DUOL)
2/27/2026
9.47%
TransMedics (TMDX)
2/27/2026
8.99%
Accelerant (ARX)
2/27/2026
8.36%
Chemours (CC)
2/27/2026
8.06%
Olin (OLN)
2/27/2026
7.87%
Veradermics (MANE)
2/27/2026
7.68%
Penn National Gaming (PENN)
2/27/2026
7.42%
Westlake Chemical (WLK)
2/27/2026
7.31%
Iridium Communications (IRDM)
2/27/2026
7.25%
Ultra Clean (UCTT)
2/27/2026
7.02%
10X Genomics (TXG)
2/27/2026
6.81%
Bill Com (BILL)
2/27/2026
6.69%
Encore Capital (ECPG)
2/27/2026
6.57%
Relay Therapeutics  (RLAY)
2/27/2026
6.43%
SM Energy (SM)
2/27/2026
6.39%
NewAmsterdam Pharma Company NV Ordinary Shares (NAMS)
2/27/2026
6.14%
Acadia Healthcare (ACHC)
2/27/2026
6.06%
Figs (FIGS)
2/27/2026
6.04%
Lifestance Health (LFST)
2/27/2026
6%
Crescent Energy (CRGY)
2/27/2026
6%
Mid-cap stocks are treated as having a market cap between $2B and $10B.