Options Assignment Risk Calendar
Last verified: 2026-07-17
An options assignment risk calendar is a simple way to track the dates and conditions that can make short options more sensitive before expiration. It does not predict assignment. It keeps the risk visible before a trader forgets to review it.
Educational note: this is a research and planning framework, not personalized tax, legal, or investing guidance.
The simple framework
The calendar should combine time, moneyness, extrinsic value, dividends, earnings, liquidity, spread width, and broker-specific instructions. Assignment mechanics vary by option style, broker process, and contract details, so source records matter. The workflow is educational: write the dates, verify contract details, and decide in advance when a position needs review.
Example workflow
Example: a trader has a short call spread expiring in two weeks. The stock is close to the short strike, an ex-dividend date is approaching, and spreads widen into the close. The calendar does not tell the trader what to do. It tells the trader that the position deserves a scheduled review before the risk becomes a surprise.
What to write down before acting
- ▸Expiration date and whether the position is short, long, covered, spread, or multi-leg.
- ▸Strike prices, current price, moneyness, and remaining extrinsic value from the platform.
- ▸Ex-dividend date, earnings date, major event dates, and liquidity notes.
- ▸Broker exercise, assignment, margin, and notification records the user has verified.
- ▸Decision gates for hold, close, roll review, size reduction, or no-action logging.
Common mistakes
- ▸Assuming assignment only matters on expiration day.
- ▸Ignoring ex-dividend dates on short calls.
- ▸Forgetting that spreads can leave leg-level risks if handled poorly.
- ▸Relying on generic internet rules instead of verified broker and contract records.
Bucko workflow
Use Bucko to keep the source record, research note, journal tag, guardrail, and follow-up review in one place. TradingView indicators, Monko user-configured automation, Copy Trader risk notes, and Station AI review workflows can support the process, but the user-defined rule and audit trail should stay visible.
Practical checklist
- ▸Create a calendar event for every expiration week position.
- ▸Add ex-dividend, earnings, and known event dates when relevant.
- ▸Review moneyness and extrinsic value before the final trading days.
- ▸Check liquidity, bid-ask spread, and leg-level exposure.
- ▸Save the decision note and post-expiration review in the journal.