Octave Intelligence (OCTV) had the lowest return in May 2026 by a mid-cap US stock, returning -38.6%.
| ASSET | MONTH | % RETURN |
|---|---|---|
Octave Intelligence (OCTV) | May 2026 | -38.57% |
Shake Shack (SHAK) | May 2026 | -37.7% |
TransMedics (TMDX) | May 2026 | -33.45% |
Primoris Services (PRIM) | May 2026 | -30.76% |
Glaukos (GKOS) | May 2026 | -28% |
Installed Building Products (IBP) | May 2026 | -27.55% |
Wix (WIX) | May 2026 | -27.25% |
Cosan SA ADR (CSAN) | May 2026 | -26.29% |
NIQ Global Intelligence (NIQ) | May 2026 | -24.93% |
OSI Systems (OSIS) | May 2026 | -24.69% |
Klaviyo (KVYO) | May 2026 | -24.57% |
Westlake Chemical (WLK) | May 2026 | -24.53% |
Resideo Technologies (REZI) | May 2026 | -24.27% |
Comstock Resources (CRK) | May 2026 | -23.92% |
Bright Horizons Family Solutions (BFAM) | May 2026 | -23.65% |
Freshpet (FRPT) | May 2026 | -23.42% |
Tutor Perini (TPC) | May 2026 | -22.9% |
Celanese (CE) | May 2026 | -22.4% |
ADMA Biologics (ADMA) | May 2026 | -22.37% |
Newell Brands (NWL) | May 2026 | -22.07% |
Zillow Group Inc Class C (Z) | May 2026 | -21.94% |
Zillow (ZG) | May 2026 | -21.58% |
GPGI (GPGI) | May 2026 | -21.28% |
Advanced Energy Industries (AEIS) | May 2026 | -21.19% |
Bilibili (BILI) | May 2026 | -21.09% |
Mid-cap stocks are treated as having a market cap between $2B and $10B.