SharpeIQ Research

30-day ATM IV movers

Top 10 expansions and crushes in IBKR's constant-maturity ~30-day ATM series — the same print as the earnings table. The earnings premium and the front-week crush live in a different number; a name can drop 12 points here and 55 on the weeklies. IV as of Sep 24, 2026.

US equity movers → · Commodities →

IV expanders

TickerCompanyIV30d ATM
AXGNAxogen, Inc.80.3%+25.6pt
ALMAlmonty Industries Inc.99.7%+25.4pt
AQNAlgonquin Power & Utilities Corp.49.8%+24.9pt
AMRXAmneal Pharmaceuticals, Inc.59.1%+16.2pt
BUSEFirst Busey Corp /Nv/54.1%+15.2pt
CCCCcc Intelligent Solutions Holdings Inc.79.2%+14.0pt
CNHCnh Industrial N.V.56.5%+12.5pt
ALHCAlignment Healthcare, Inc.109.5%+10.3pt
ARRArmour Residential Reit, Inc.27.1%+9.1pt
BHFBrighthouse Financial, Inc.55.1%+8.3pt

IV crushers

TickerCompanyIV30d ATM
ACADAcadia Pharmaceuticals Inc44.4%-70.0pt
BTDRBitdeer Technologies Group94.1%-14.8pt
BBBlackberry Ltd66.4%-14.6pt
CDPCopt Defense Properties25.6%-10.2pt
CIGIColliers International Group Inc.34.8%-7.8pt
CLBKColumbia Financial, Inc./Md/29.5%-7.5pt
CATYCathay General Bancorp24.3%-7.0pt
ASNDAscendis Pharma A/S41.1%-6.5pt
ABNBAirbnb, Inc.34.9%-6.2pt
ARMArm Holdings Plc /Uk67.3%-5.2pt

Change is in volatility points over 1 / 5 / 21 / 63 trading days, not a front-expiry straddle. Same liquidity gates as the equity board. Not investment advice.