HowShorted

US Short Interest Movers

Where US short interest is building and unwinding fastest, as of settlement date 31 Jul 2026. FINRA publishes twice a month, so each step is one report (roughly two weeks), and changes are percentage points of shares outstanding.

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Since the previous report (~2 weeks)

Risers

  1. Moleculin Biotech, Inc.29.56%+9.80
  2. Immunic, Inc.10.51%+9.47
  3. Gossamer Bio, Inc.40.47%+9.29
  4. CPS Technologies Corp.10.44%+8.71
  5. BioVie Inc.10.62%+8.27
  6. SHOE STATION GROUP INC23.16%+7.56
  7. Outlook Therapeutics, Inc.16.56%+7.26
  8. TENAX THERAPEUTICS, INC.6.83%+5.70
  9. Optimum Communications, Inc.9.32%+5.56
  10. Karyopharm Therapeutics Inc.33.34%+5.49
  11. Simulations Plus, Inc.14.06%+5.26
  12. Axe Compute Inc.14.45%+5.24
  13. Replimune Group, Inc.32.81%+4.63
  14. Z Squared Inc.64.78%+4.57
  15. Sky Quarry Inc.21.63%+4.44

Fallers

  1. Faeth Therapeutics, Inc.3.16%−63.27
  2. PMGC Holdings Inc.37.99%−31.82
  3. Rallybio Corp1.20%−28.54
  4. Clean Energy Technologies, Inc.0.29%−24.88
  5. ChronoScale Holdings Corp16.80%−16.40
  6. Rocket One Inc.23.89%−8.40
  7. enVVeno Medical Corp2.68%−8.00
  8. Editas Medicine, Inc.15.28%−7.39
  9. Battalion Oil Corporation22.69%−5.93
  10. REGENXBIO Inc.10.90%−5.81
  11. Penguin Solutions, Inc.13.19%−5.73
  12. AtaiBeckley Inc.5.44%−4.92
  13. Bed Bath & Beyond, Inc.15.09%−4.68
  14. Monopar Therapeutics15.87%−4.46
  15. GeoVax Labs, Inc.0.78%−4.42

Over 5 reports (~10 weeks)

Risers

  1. Z Squared Inc.64.78%+56.47
  2. Avalo Therapeutics, Inc.56.83%+29.39
  3. Gossamer Bio, Inc.40.47%+23.07
  4. Moleculin Biotech, Inc.29.56%+19.67
  5. Virgin Galactic Holdings, Inc47.48%+19.59
  6. Sky Quarry Inc.21.63%+17.78
  7. Ondas Inc.50.30%+17.58
  8. Cabaletta Bio, Inc.36.63%+16.11
  9. SPRUCE BIOSCIENCES, INC.31.28%+15.61
  10. FUELCELL ENERGY INC23.58%+13.25
  11. Sable Offshore Corp.29.21%+12.28
  12. Nano Nuclear Energy Inc.29.29%+12.00
  13. Laser Photonics Corp17.42%+11.96
  14. Immix Biopharma, Inc.17.92%+11.84
  15. Hyperliquid Strategies Inc18.38%+11.52

Fallers

  1. Lifevantage Corporation10.01%−18.45
  2. Olenox Industries Inc.1.39%−17.10
  3. aTyr Pharma, Inc.9.92%−11.90
  4. Vital Farms, Inc.20.41%−11.47
  5. enVVeno Medical Corp2.68%−8.72
  6. Cardiff Oncology, Inc.17.84%−8.51
  7. iPower Inc.3.57%−8.45
  8. MADRIGAL PHARMACEUTICALS, INC.8.51%−8.39
  9. Wolfspeed, Inc.48.98%−8.28
  10. KULR Technology Group, Inc.13.47%−8.13
  11. GeoVax Labs, Inc.0.78%−8.01
  12. GRAPHIC PACKAGING HOLDING CO7.25%−7.97
  13. Trio Petroleum Corp.5.73%−7.78
  14. Monopar Therapeutics15.87%−7.58
  15. Soligenix, Inc.2.69%−7.22

Over 20 reports (~10 months)

Risers

  1. Avalo Therapeutics, Inc.56.83%+56.44
  2. Ondas Inc.50.30%+43.42
  3. Virgin Galactic Holdings, Inc47.48%+30.38
  4. Cabaletta Bio, Inc.36.63%+30.02
  5. Gossamer Bio, Inc.40.47%+28.42
  6. Wolfspeed, Inc.48.98%+21.06
  7. Battalion Oil Corporation22.69%+19.85
  8. C4 Therapeutics, Inc.24.73%+19.78
  9. Inhibrx Biosciences, Inc.22.87%+19.25
  10. Wendy's Co30.85%+18.64
  11. LENZ Therapeutics, Inc.36.10%+17.62
  12. WW International, Inc.20.15%+16.87
  13. Palisade Bio, Inc.20.32%+16.65
  14. Allogene Therapeutics, Inc.24.92%+16.27
  15. NRX Pharmaceuticals, Inc.19.82%+15.97

Fallers

  1. aTyr Pharma, Inc.9.92%−28.79
  2. Tron Inc.2.80%−23.53
  3. Beyond Meat, Inc.28.15%−23.50
  4. Bionano Genomics, Inc.9.61%−19.59
  5. Hyperion DeFi, Inc.13.70%−14.23
  6. Plug Power, Inc.21.08%−12.15
  7. Tao Synergies Inc.4.48%−12.02
  8. ENDRA Life Sciences Inc.2.66%−11.36
  9. Etsy, Inc.10.64%−11.22
  10. Evolus, Inc.8.43%−11.18
  11. Quantum Corporation6.12%−11.12
  12. Coherus Oncology, Inc.15.88%−10.91
  13. VerifyMe, Inc.0.45%−10.90
  14. Super League Enterprise, Inc.1.88%−10.79
  15. X4 Pharmaceuticals, Inc7.36%−10.59