Costco Wholesale (COST) options flow
Price delayed 15 minutes
Options flow session · Last trade
The optional price chart loads separately. Recorded options trades are available below.
Session chart data
| Strike (USD) | Net GEX per 1% move (USD) |
|---|---|
| $990 | $7,652,062 |
| $1000 | $34,200,738 |
| $1005 | $6,338,106 |
| $1010 | $7,112,739 |
| $1015 | $11,446,419 |
| $1020 | $21,108,162 |
| $1030 | $6,399,131 |
| $1040 | $13,644,226 |
| $1060 | $11,793,473 |
| $1080 | $10,258,656 |
| $1100 | $9,395,011 |
| $1200 | $6,637,977 |
COST session snapshot
Bullflow recorded 4 COST options trades on Monday, October 26, 2026, totaling $2,833,175 in premium. Calls made up $1.89M (66.7%) across 2 trades and puts $944.68K (33.3%) across 2 trades, a put/call premium ratio of 0.50.
1 trades were sweeps and 3 were blocks. 0 filled at or above the ask, 4 at or below the bid and 0 at the mid. The largest was a $1,414,500 block of 300 Dec 18, 2026 $990 Call trade at 10:52:18 ET, filled at the bid.
COST closed at $1,005.16, up 0.18% from the prior close. Net gamma exposure was $158.19M per 1% move at the Oct 26, 2026, 15:59:46 ET snapshot; the largest positive GEX strike was $1000. By premium, COST ranked 1 of 3 among the related tickers below.
- Company
- Costco Wholesale Corp
- Exchange
- NASDAQ
- Sector
- Consumer Defensive
- Close
- $1,005.16
COST options flow statistics
- Total premium
- $2.83M
- Recorded trades
- 4
- Call premium
- $1.89M
- Put premium
- $944.68K
- Put/call premium ratio
- 0.50
- Avg premium per trade
- $708.29K
- Calls / puts (trades)
- 2 / 2
- Sweeps / blocks
- 1 / 3
- At or above ask
- 0
- At or below bid
- 4
- Largest trade
- $1.41M
- Last trade
Where the premium went
in calls
$2.83M · 4 trades
Premium
Trade type
Fill side
COST largest options trades
| Time | Contract | C/P | Premium | Size | Fill | Type |
|---|---|---|---|---|---|---|
| COST Dec 18, 2026 $990 | Call | $1,414,500 | 300 | Bid | Block | |
| COST Dec 15, 2028 $900 | Put | $926,415 | 153 | Bid | Block | |
| COST Dec 18, 2026 $990 | Call | $474,000 | 100 | Bid | Block | |
| COST Nov 6, 2026 $950 | Put | $18,260 | 110 | Bid | Sweep |
2 of the 4 largest trades, $1.89M combined
The 4 largest trades total $2.83M of $2.83M
COST gamma exposure
- Spot at snapshot
- $1,005.16
- Net GEX per 1% move
- $158.19M
- Largest positive strike
- $1000
- Largest negative strike
- $900
Closing snapshot , 165 strikes across 18 expirations (Unavailable to Unavailable).
COST options flow questions
What was the largest COST options trade on October 26, 2026?
A $1,414,500 block of 300 COST Dec 18, 2026 $990 Call trade at 10:52:18 ET, filled at the bid. It was the largest of 4 trades Bullflow recorded for COST that session.
How much COST options premium traded on October 26, 2026?
$2,833,175 across 4 recorded sweeps and blocks: $1,888,500 in calls (2 trades) and $944,675 in puts (2 trades).
Was COST options flow bullish or bearish on October 26, 2026?
Calls were 66.7% of premium (put/call premium ratio 0.50). 4 of 4 trades filled at or below the bid and 0 at or above the ask. Premium and fill side do not show whether a trade opened or closed a position or was a hedge, so they do not establish direction on their own.
What are COST's gamma exposure levels?
At the Oct 26, 2026 closing snapshot (15:59:46 ET, spot $1,005.16), COST net GEX was $158.19M per 1% move. The largest positive GEX strike was $1000. The largest negative GEX strike was $900. The snapshot covers 165 strikes and 18 expirations.
How does COST options flow compare with related stocks?
COST ranked 1 of 3 by premium on Oct 26, 2026 among the tickers shown here. COST $2.83M, WMT $2.62M, KO $2.17M led; COST recorded $2.83M.
How often is COST options flow data updated?
The page shows a completed session (October 26, 2026, last trade 10:54:11 ET) and updates after the next trading day becomes historical. Intraday COST flow is in the Bullflow dashboard and API.
How to read this data
This summary covers recorded single-leg sweeps and blocks with positive premium, excluding cancelled trades. It describes the covered flow, not all options-market volume. Total premium is gross traded premium; it is not net buying pressure. The interactive dashboard can use different filters and may show different totals.
Calls, puts, and execution near the bid or ask provide context but do not establish whether a position was opened or closed, whether it was part of a hedge, or where the stock will move next. The session updates after the next trading day becomes historical.
Stock prices show regular-session candles delayed at least 15 minutes. The latest view refreshes during market hours; the flow-session view places recorded trades on their original date, using interpolated stock prices between candle samples. Gamma exposure shows its separately dated public closing snapshot.