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HowShorted

US Short Interest Movers

Where US short interest is building and unwinding fastest, as of settlement date 15 Sep 2026. FINRA publishes twice a month, so each step is one report (roughly two weeks), and changes are percentage points of shares outstanding.

Longer windows: biggest changes over the past year and the year to date.

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Since the previous report (~2 weeks)

Risers

  1. SHOE STATION GROUP INC32.20%+23.17
  2. FARADAY FUTURE INTELLIGENT ELECTRIC INC.27.84%+8.35
  3. Surrozen, Inc.18.68%+6.38
  4. Trio Petroleum Corp.10.54%+6.01
  5. FUELCELL ENERGY INC31.14%+6.00
  6. RF Industries, Ltd.6.99%+5.97
  7. Q/C Technologies, Inc.23.25%+5.93
  8. MATTHEWS INTERNATIONAL CORP18.66%+5.52
  9. TripAdvisor, Inc.30.34%+5.07
  10. Strive, Inc.28.02%+4.89
  11. Sky Quarry Inc.8.41%+4.53
  12. Laser Photonics Corp14.59%+4.30
  13. CEA Industries Inc.6.66%+4.28
  14. Digital Brands Group, Inc.19.31%+4.26
  15. PowerCompute, Inc.8.29%+4.22

Fallers

  1. Battalion Oil Corporation7.75%−14.94
  2. TENAX THERAPEUTICS, INC.14.71%−10.08
  3. iSpecimen Inc.8.76%−9.88
  4. INVO Fertility, Inc.10.84%−9.74
  5. Karyopharm Therapeutics Inc.34.68%−8.59
  6. Vivos Therapeutics, Inc.11.70%−6.32
  7. GameStop Corp. Class A7.74%−4.96
  8. Cabaletta Bio, Inc.19.66%−4.78
  9. CAPRICOR THERAPEUTICS, INC.33.85%−4.31
  10. Evommune, Inc.7.93%−4.10
  11. Vera Therapeutics, Inc. Class23.64%−3.94
  12. ANI Pharmaceuticals, Inc.10.84%−3.81
  13. Blaize Holdings, Inc.11.93%−3.59
  14. Bit Digital, Inc15.47%−3.34
  15. BridgeBio Oncology Therapeutics, Inc.4.49%−3.24

Over 5 reports (~10 weeks)

Risers

  1. SHOE STATION GROUP INC32.20%+21.09
  2. FUELCELL ENERGY INC31.14%+15.95
  3. Fabric.AI, Inc.20.61%+13.87
  4. Surrozen, Inc.18.68%+12.50
  5. Digital Brands Group, Inc.19.31%+11.78
  6. Jasper Therapeutics, Inc.17.46%+10.47
  7. C4 Therapeutics, Inc.32.67%+10.06
  8. PALATIN TECHNOLOGIES INC20.30%+10.04
  9. XMAX, Inc.15.01%+10.02
  10. INVO Fertility, Inc.10.84%+9.98
  11. Vivakor, Inc.14.95%+9.45
  12. FARADAY FUTURE INTELLIGENT ELECTRIC INC.27.84%+9.38
  13. MATTHEWS INTERNATIONAL CORP18.66%+9.27
  14. Aquestive Therapeutics, Inc.21.64%+8.53
  15. PATRICK INDUSTRIES INC15.50%+8.48

Fallers

  1. MicroAlgo Inc.2.16%−53.57
  2. BIO KEY INTERNATIONAL INC0.46%−28.47
  3. Nauticus Robotics, Inc.12.15%−27.49
  4. Rallybio Corp1.05%−25.53
  5. NetSTREIT Corp.14.01%−20.28
  6. Virgin Galactic Holdings, Inc22.33%−19.49
  7. Soluna Holdings, Inc9.96%−18.92
  8. Dauch Corporation7.79%−15.25
  9. Nakamoto Inc.5.63%−13.68
  10. Damora Therapeutics, Inc.7.67%−13.20
  11. e.l.f. Beauty, Inc.7.15%−13.00
  12. Battalion Oil Corporation7.75%−12.85
  13. QXO, Inc.10.47%−12.16
  14. SPRUCE BIOSCIENCES, INC.14.48%−11.71
  15. KALA BIO, Inc.2.30%−11.56

Over 20 reports (~10 months)

Risers

  1. C4 Therapeutics, Inc.32.67%+27.67
  2. Karyopharm Therapeutics Inc.34.68%+26.42
  3. Wolfspeed, Inc.49.25%+24.60
  4. FUELCELL ENERGY INC31.14%+23.47
  5. New ERA Energy & Digital, Inc.24.76%+22.52
  6. Strive, Inc.28.02%+20.06
  7. Serve Robotics Inc.37.00%+18.78
  8. Ondas Inc.41.56%+18.76
  9. Digital Brands Group, Inc.19.31%+18.50
  10. One Stop Systems, Inc.18.85%+17.99
  11. NRX Pharmaceuticals, Inc.22.57%+17.74
  12. Lexeo Therapeutics, Inc.25.14%+17.42
  13. Surrozen, Inc.18.68%+17.18
  14. T1 Energy Inc.22.47%+16.64
  15. Oragenics Inc.17.88%+16.42

Fallers

  1. aTyr Pharma, Inc.10.88%−19.60
  2. BITMINE IMMERSION TECHNOLOGIES, INC.6.73%−18.25
  3. ANAVEX LIFE SCIENCES CORP.15.46%−18.00
  4. Keros Therapeutics, Inc.6.77%−15.49
  5. Tectonic Therapeutic, Inc.11.35%−15.39
  6. WW International, Inc.17.07%−13.49
  7. Q/C Technologies, Inc.23.25%−13.45
  8. Arcturus Therapeutics Holdings Inc.19.24%−13.18
  9. FuboTV Inc.5.69%−12.31
  10. Workhorse Group Inc.8.88%−11.80
  11. Avis Budget Group, Inc.13.31%−11.66
  12. Cyngn Inc.6.05%−11.66
  13. Byrna Technologies Inc.6.11%−11.50
  14. Caleres Inc12.14%−10.04
  15. Iovance Biotherapeutics, Inc.19.23%−9.92