thetaOwl

Market Movers — IV

Compared to prior trading day

Total Symbols: 20
Avg Change: -5.8%
Most Active Sector: Healthcare
As of: May 20, 2026

Biggest Increase

#SymbolPriceIV ChangeIV RankSector
1
TTECTTEC Holdings, Inc.
$2.50+60.1%
166
Technology
2
BLCOBausch + Lomb Corporation
$16.20+45.5%
81
Healthcare
3
SBSISouthside Bancshares, Inc.
$32.74+44.7%
110
Financial Services
4
XLCCommunication Services Select Sector SPDR
$116.10+44.4%
39
ETF
5
PYXSPyxis Oncology, Inc.
$2.00+42.1%
200
Healthcare
6
ATHMAutohome Inc.
$16.93+40.6%
72
Communication Services
7
GETYGetty Images Holdings, Inc.
$1.00+35.7%
220
Communication Services
8
ALXOALX Oncology Holdings Inc.
$1.99+34.8%
186
Healthcare
9
CARSCars.com Inc.
$9.74+34.8%
80
Communication Services
10
VOXRVox Royalty Corp.
$6.05+33.9%
104
Basic Materials

Biggest Decrease

#SymbolPriceIV ChangeIV RankSector
1
SDSandRidge Energy, Inc.
$15.52-74.0%
14
Energy
2
ALGAlamo Group, Inc.
$152.16-70.3%
40
Industrials
3
LPGDorian LPG Ltd.
$47.72-59.3%
14
Energy
4
PNNTPennantPark Investment Corporat
$3.83-58.9%
62
Financial Services
5
NVGSNavigator Holdings Ltd.
$23.79-53.1%
64
Energy
6
RAMPLiveRamp Holdings, Inc.
$37.73-50.6%
17
Technology
7
TONXTON Strategy Company
$3.28-44.3%
137
Technology
8
IMMPImmutep Limited
$0.47-44.1%
254
Healthcare
9
MGTXMeiraGTx Holdings plc
$9.58-40.3%
68
Healthcare
10
NMIHNMI Holdings Inc
$38.25-38.1%
46
Financial Services
How to Use IV Movers

Use iv movers to spot where options behavior changed the most on the close, then confirm whether the shift came with tradable liquidity and a clear catalyst.

Big changes in one options metric can be noisy or one-off, so always check the broader chain before acting.