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CO

Costco Wholesale Corporation (COST) short interest & options flow

NASDAQ

Costco keeps climbing, but the options market has not warmed to the rally, and the Street's target compression is becoming harder to ignore with 40 days until the December 10 earnings print. The options signal is the clearest read on current positioning. The put/call ratio has held above 1.03 for most of the past two weeks, running above its 20-day average of 0.97 by about one…

Latest pulse28 Sept 2026

COST cost to borrow surges to 0.69%, up 125% in a week, amid tightening lending availability.

$1019.26-2.05% 1d+2.73% 1w+10.71% 1mClose: 3 Nov 2026
Short interest % of float
Low
Live SI on ORTEX →
Cost to borrow
Low and dropping
Live CTB on ORTEX →
Availability
High
Live availability on ORTEX →
Market cap
$451.58B
Next earnings
10 Dec 2026
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Key data as of 4 Nov 2026

ORTEX chart of Costco Wholesale Corporation (COST) share price and short interest (% of free float), six months to November 3, 2026
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COST news and analysis

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ConfluenceCOST

COST Borrow Cost Collapses as Options Bulls Hold Firm

COST fell nearly 8% in the week after earnings. Now two of the three signals that fired during the selloff are reversing fast. The cost to borrow has plunged 57% in one week to just 0.16% annualised — the lowest level…

1 min read

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