Pin risk is the uncertainty around whether an option finishes exactly at, or just barely through, the strike price at expiration, which can trigger unwanted automatic exercise or assignment into a stock position.

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Should I pay a commission to close a near-worthless option, or just let it expire?

Q: Should I pay a commission to close a near-worthless option, or let it expire?

Compare the net proceeds of closing now, the bid price times 100 times contracts minus commission, against letting it expire. If the option is out of the money, expiring means you receive nothing, so any positive net proceeds from closing is worth capturing.

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Enter the Position

Use the current bid, not the ask, since a bid is what you would actually receive by closing.

Your Result

Fill in the position on the left and click Compare to see whether closing now captures more than letting it expire.

How this is calculated

Net proceeds from closing = (bid price × 100 × contracts) minus (commission × contracts). This is what you would actually pocket by closing right now.
If the option is out of the money at expiration, it expires worthless and you keep nothing from it, so any positive net proceeds from closing beats letting it expire.
If the option is in the money by any amount at expiration, standard practice is automatic exercise, which converts it into a stock position (or assignment on the short side) instead of cash. That can create pin risk: an unwanted stock position, a weekend gap, or a wire of unexpected buying power if you did not plan to take the underlying shares.
A wide bid-ask spread on a low-priced, low-volume option can mean the bid you'd actually receive is worse than the mid-price your platform displays. Use the actual bid, not the displayed midpoint.
This tool does not know your broker's exact commission structure, exercise cutoff time, or your account's ability to take assignment. Confirm your broker's specific expiration-day rules before deciding.

Risk & liability disclaimer: This calculator produces a mathematical estimate based on the numbers you enter. It is not financial advice and does not guarantee any trading outcome. Options that expire in the money are generally automatically exercised, which can result in an unplanned stock position and additional risk. Trading Habits is not a broker-dealer, registered investment adviser, or tax professional, and is not affiliated with any broker, exchange, or data provider. Confirm your broker's specific rules on exercise, assignment, and expiration-day cutoffs before making a decision. Trading involves risk of loss, and you could lose some or all of the capital you trade with.

Should I pay a commission to close a near-worthless option, or just let it expire?

Enter the Position

Your Result

How this is calculated

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