Costco's $81.9 Million Options Day Runs 76% Calls as Dark Pools Climb Above Normal: Retail Data for Suppliers and Fleets (GTA Terminal, November 11, 2026)

If your business supplies, delivers to, builds for or services big-box retail, Costco is one of the best barometers of how shoppers are holding up. On Tuesday, November 10, the options money in Costco leaned heavily toward puts. One day later, on Wednesday, November 11, 2026, GTA Terminal data from Global Traders Academy showed the opposite: a big call-heavy session, a 2% gain and dark pool volume above normal.

From the open to the close: call money all day

The tone was set early. By 10:01 AM ET, Costco was at $1,077.40, up 1.06%, and all $2.1 million of options premium traded to that point, 100%, was in calls. By the close the session had grown far larger. According to GTA Terminal data, $81.9 million in premium traded in COST on November 11: $62.3 million in calls and $19.6 million in puts, so 76% calls, with a put/call volume ratio of 0.63 and 23 contracts trading above their open interest.

The biggest unusual trades GTA showed were calls: 869 contracts at the $1,085 strike expiring November 13 (about $780,000 in premium), 388 contracts at $1,250 expiring April 16, 2027 (about $698,000), and 696 contracts at $1,090 expiring November 13 (about $444,000). That is a mix of very short-dated bets and one long-dated position. Costco closed up 2.01% at $1,087.61, 1% below its 52-week high, with an RSI of 66. The full session is in GTA Wire's Costco closing flow report for November 11, and the running picture is on GTA's Costco options flow page.

Dark pools: the busiest session of the week

Off the exchanges, 896,505 Costco shares traded in dark pools on November 11, 1.1x the stock's 20-session average and 39.9% of all its volume, up from 489,814 shares (31.5%) on November 10. It was the highest dark pool share in the five sessions GTA shows. Track it on the Costco dark pool activity page.

Why a retailer matters to an equipment buyer

Costco runs huge warehouses, distribution centers and truck fleets, and it buys a steady stream of forklifts, refrigeration, racking and construction services. When investors are confident in a chain like this, it usually reflects confident shoppers across the economy, and that confidence tends to flow down to the electricians, HVAC crews, paving contractors and haulers who serve retail. The reverse is also true: a sharp turn to puts in the big retailers has often come before slower store projects and thinner reorder volumes. Reading the flow helps you decide whether to add capacity now or wait a quarter.

What it means for retail suppliers, contractors and fleets

• A vote of confidence in the shopper. A stock near its highs, with call-heavy options and above-normal off-exchange volume, suggests large investors expect Costco's traffic to hold. Strong traffic usually means steady reorders for suppliers and steady work for distributors.

• Store work and delivery routes. Contractors who build out or maintain warehouse stores, and fleets that run retail delivery routes, tend to benefit when the big chains feel confident about expansion.

• Do not ignore the swing. One day earlier the money leaned to puts. A sentiment flip that fast is a reminder to plan equipment purchases on your own contracts and backlog, not on one day of market mood.

We wrote about the Tuesday side of this swing when Costco drew 94% puts while Walmart drew calls, and about Target's call money doubling. Retail flow is tracked daily on globaltradersacademy.com.

A signal, not a guarantee

Options premium shows where money went, not whether each trade was bought or sold. Short-dated calls can expire worthless, and sentiment can flip back as fast as it flipped on November 11. This is a signal, not a guarantee. All figures are GTA Terminal data for November 10 and 11, 2026. Not investment advice.

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