Oct 25, 2026
ACondor LLC explains what pin risk is, why a defined risk spread can still leave a trader holding stock after expiration, and how its software for tastytrade accounts closes positions on expiration day and pulls short options that have run out of time value.

Las Cruces, United States, October 25, 2026 /NewsNetwork/ -- Pin risk is the uncertainty a short option seller faces when the underlying finishes expiration day at or very near a short strike. ACondor LLC, the company behind the ACondor options trading software for tastytrade accounts, has published an explanation of how pin risk works, why it matters even on a defined risk iron condor, and the rules its software uses to keep positions from reaching that point. The company's approach to defending open trades is described at https://acondor.com/blog/how-acondor-defends-options-trades-under-pressure
According to the company, the term comes from the stock being "pinned" to a strike price at the close. An option that finishes a few cents in the money is normally exercised automatically, and one that finishes a few cents out of the money normally expires worthless. The seller of that option does not get to choose. The decision belongs to the holder, and exercise notices are processed after the closing bell. A holder can also decide based on news or an after-hours move the seller never sees. The short seller learns the result only when the assignment, or the lack of one, shows up in the account.
The company notes that defined risk does not remove this problem. An iron condor pairs each short option with a long option further out. If the stock finishes between the two strikes, the short leg is assigned while the long leg expires worthless. The trader wakes up holding long or short shares with full overnight exposure, and the long option that was supposed to cap the loss is already gone. A spread that was defined risk all week is undefined risk for one weekend. Cash settled index options such as SPX do not carry this risk because no shares change hands, but equity and ETF options do.
The usual advice is to close short options before expiration rather than hoping they expire worthless. ACondor builds that advice into rules that run on every position, every cycle, without a trader having to remember them.
The first rule is the earliest. Mechanical iron condors are closed at 21 days to expiration regardless of where the trade stands, so most positions never see expiration week at all. The company's view is that the final three weeks trade shrinking daily theta for rising gamma, and expiration day is the extreme case of that swap.
The second rule handles any position that is still open on expiration day. After 1:00 PM Eastern, the software closes the whole position regardless of where the trade stands, winners and losers alike. It waits for the afternoon so the morning's time decay still accrues, then buys the position back rather than gambling on a clean worthless expiry. A position that is already a winner within about one day of expiration is pulled early for the same reason.
The third rule targets early assignment, which can arrive before expiration day. A short option is unlikely to be assigned while it still carries time value, because the holder would give that value up by exercising. ACondor measures the extrinsic value of every short leg that is in the money. When it falls to ten cents a share or less, the position is closed before an assignment can happen. A separate check watches short calls near an ex-dividend date, where a dividend larger than the remaining time value gives the holder a reason to exercise.
These closes are treated as must-fill orders. The software submits at the mid price and walks the order one tick toward the market every thirty seconds until it fills, inside a bound, so a position marked for closing does not sit unfilled because the market moved. If an assignment arrives anyway, the software is designed to detect the resulting share position from the broker's records and close the shares and any remaining option legs together as one cleanup.
Every one of these closes is recorded with its actual reason, so a trade history shows "expiry flatten" or "assignment risk" rather than a generic exit label.
ACondor is software, not investment advice. Closing before expiration removes pin risk from a position; it does not remove the loss a position may already carry. Nothing here is a guarantee of any trading result, and options trading carries substantial risk of loss.
Traders who want expiration day and assignment rules enforced automatically in a tastytrade account can request early access at https://acondor.com/early-access
Contact Info:
Name: Robin Lilly
Email: Send Email
Organization: ACondor LLC
Address: 2521 North Main Street, Las Cruces Unit 1-276, Las Cruces, New Mexico 88001, United States
Phone: +1-575-312-9326
Website: https://acondor.com
Source: NewsNetwork
Release ID: 89207287
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