Unusual Options Activity

COST Unusual Options Activity - Costco Wholesale

Last active day: September 15, 2026
Active days (30d): 19
Biggest recent print: Call $945.0000 · $321K

AI summary

On September 15, 2026, Costco Wholesale Corporation (COST) experienced notable options activity with a significant call transaction. A single print was recorded for a call option with a strike price of $945, expiring on September 18, 2026. The premium for this call was $321,000, indicating a strong interest in this particular option. The volume to open interest (Vol/OI) ratio for this transaction stood at 3.4, suggesting a relatively high level of trading activity compared to existing open positions. Over the past 30 days, COST has seen active options trading on 19 days, reflecting ongoing interest in the stock's options market. No put options were recorded during this activity, highlighting a clear focus on bullish sentiment among traders for this expiration date.

AI-generated summary

COST was last active on September 15, 2026.

Prints on September 15, 2026

Ticker	Side	Strike	Expiry	Vol/OI	Premium	IV	New
COST	Call	$945.0000	09/18/26 (4d)	3.4×	$321K	22%

History

2026-09-151 prints$321K calls$0K puts
2026-09-141 prints$321K calls$0K puts
2026-09-112 prints$136K calls$0K puts
2026-09-102 prints$134K calls$0K puts
2026-09-094 prints$356K calls$401K puts
2026-09-084 prints$301K calls$446K puts
2026-09-042 prints$0K calls$88K puts
2026-09-035 prints$412K calls$339K puts
2026-09-024 prints$236K calls$339K puts
2026-09-011 prints$300K calls$0K puts
2026-08-311 prints$300K calls$0K puts
2026-08-283 prints$0K calls$625K puts
2026-08-272 prints$0K calls$598K puts
2026-08-253 prints$773K calls$0K puts
2026-08-243 prints$773K calls$0K puts
2026-08-213 prints$110K calls$4.1M puts
2026-08-204 prints$17.3M calls$4.4M puts
2026-08-193 prints$17.3M calls$616K puts
2026-08-181 prints$0K calls$359K puts
2026-08-141 prints$42K calls$0K puts

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