MaxLinear (MXL) had the highest return in April 2026 by a mid-cap US stock, returning 302%.

ASSET	MONTH	% RETURN
MaxLinear (MXL)	April 2026	301.99%
Aehr Test Systems (AEHR)	April 2026	137.07%
Organon (OGN)	April 2026	121.94%
Silicon Motion Technology (SIMO)	April 2026	91.56%
Navitas Semiconductor (NVTS)	April 2026	83.33%
Applied Opt (AAOI)	April 2026	82.32%
Maase (MAAS)	April 2026	79.3%
Penguin Solutions (PENG)	April 2026	68.38%
USA Rare Earth (USAR)	April 2026	65.78%
BlackBerry (BB)	April 2026	64.63%
Vishay Intertechnology (VSH)	April 2026	58.31%
Clover Health Investments (CLOV)	April 2026	58.05%
Dave (DAVE)	April 2026	53.04%
Diodes (DIOD)	April 2026	52.94%
Keel Infrastructure (KEEL)	April 2026	52.26%
AMC Entertainment (AMC)	April 2026	52%
Veradermics (MANE)	April 2026	51.98%
Legence Corp Class A Common stock (LGN)	April 2026	51.45%
Allegro Microsystems (ALGM)	April 2026	51.37%
Cohu (COHU)	April 2026	51.04%
Powell Industries (POWL)	April 2026	49.11%
Strive (ASST)	April 2026	48.84%
Terawulf (WULF)	April 2026	48.73%
Custom Truck One Source (CTOS)	April 2026	48.57%
Spyre Therapeutics (SYRE)	April 2026	47.94%

Mid-cap stocks are treated as having a market cap between $2B and $10B.