thetaOwl

Market Movers — Open Interest

Compared to prior trading day

Total Symbols: 20
Avg Change: +115.2%
Most Active Sector: Consumer Cyclical
As of: Oct 2, 2026

Biggest Increase ▲

#SymbolPriceOI ChangeTotal OISector
1
SEPNSepterna, Inc.
$37.71+750.2%
2406
Healthcare
2
BFAMBright Horizons Family Solution
$64.26+463.4%
400
Consumer Cyclical
3
SCSCScanSource, Inc.
$61.73+287.5%
682
Technology
4
VCVisteon Corporation
$88.77+218.5%
430
Consumer Cyclical
5
LOBLive Oak Bancshares, Inc.
$36.68+200.7%
412
Financial Services
6
CARGCarGurus, Inc.
$30.02+154.6%
1507
Consumer Cyclical
7
CWHCamping World Holdings, Inc.
$5.03+147.0%
36466
Consumer Cyclical
8
CCECCapital Clean Energy Carriers C
$20.99+94.8%
263
Industrials
9
ATHMAutohome Inc.
$20.56+90.7%
450
Communication Services
10
SKWDSkyward Specialty Insurance Gro
$55.01+69.4%
1464
Financial Services

Biggest Decrease ▼

#SymbolPriceOI ChangeTotal OISector
1
AFCGAdvanced Flower Capital Inc.
$3.50-29.6%
2588
Real Estate
2
ASHAshland Inc.
$69.52-22.6%
4422
Basic Materials
3
TTEKTetra Tech, Inc.
$33.12-20.1%
19005
Industrials
4
BOBSBob's Discount Furniture, Inc.
$14.19-19.3%
674
Consumer Cyclical
5
MTGMGIC Investment Corporation
$26.95-18.0%
4389
Financial Services
6
BCSFBain Capital Specialty Finance,
$11.05-14.6%
1948
Financial Services
7
COCOThe Vita Coco Company, Inc.
$55.97-14.5%
7812
Consumer Defensive
8
YELPYelp Inc.
$18.26-11.8%
21996
Communication Services
9
GHIGreystone Housing Impact Invest
$5.53-11.0%
2825
Financial Services
10
ROCKGibraltar Industries, Inc.
$40.15-10.9%
645
Industrials
How to Use Open Interest Movers

Use open interest 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.