Assigned Without the Cash to Cover It
The shares arrive anyway. Here is the sequence, the cost, and the least bad way out.
Worth reading first: What Actually Happens on Expiration Day
Course contents73 lessons · 28 questions
You sold puts on margin, the stock fell, and you have been assigned on more contracts than your cash covers. The shares are already in your account. This lesson is about what happens next, in order, and which of the exits does least damage.
The sequence
The shares arrive regardless. Assignment is not conditional on your having the cash. The clearing house allocates, the trade settles, and you own the stock.
The shortfall becomes a margin loan. Your broker funds the difference automatically and charges interest on it from that day. This is not a decision you were offered.
A margin call follows. If the resulting position breaches maintenance requirements, the broker issues a call — typically giving two to five business days, sometimes fewer in volatile conditions, and sometimes none at all if the account is deeply deficient.
Then they liquidate. If the call is not met, the broker sells positions at its discretion. It chooses what to sell and when, is not obliged to pick the position you would have picked, and does it at whatever the market is offering — usually while prices are already bad, since that is what caused the call.
The exits, ranked by damage
| Action | Cost | When it applies |
|---|---|---|
| Deposit cash | Interest for a few days | If you have funds available |
| Sell the shares immediately | Realises the loss, ends the exposure | Almost always available |
| Sell other positions | Your choice of what goes | If the rest of the book has slack |
| Sell a covered call for cash | Small credit, keeps the position | Only if the shortfall is small |
| Do nothing | Broker chooses, at market | Never deliberately |
Options once assignment has happened and the cash is not there, best first.
The second row deserves emphasis because people resist it. Selling the shares immediately realises the loss, which feels like defeat — but it also ends a leveraged position you did not choose to hold, at a price you control rather than one the broker picks.
“Holding on to recover” while financing the position with a margin loan at 8-12% is a leveraged bet made under duress. That is the opposite of the plan the strategy started with.
Assignment was not the mistake
Worth being precise about what went wrong, because the wrong lesson is easy to draw here.
Being assigned is a designed outcome of selling a cash-secured put. It is the strategy working. The error happened earlier, when a position was opened whose obligation the account could not honour.
Concretely: selling five puts with cash for two is not five cash-secured puts. It is two cash-secured puts and three leveraged short puts, and the difference is invisible until this exact morning. See cash versus margin.
The three things that prevent it
Size on the obligation, not on buying power. The requirement is strike × 100 × contracts, and it does not change because your broker is willing to hold less. See position sizing.
Keep a genuine reserve. Twenty to thirty percent uncommitted is what turns an assignment into an inconvenience rather than a cascade.
Watch positions that go in the money before expiration. Assignment rarely arrives without warning: a short put that has been through your strike for a week is a candidate. Deciding then — take it, roll it, or close it — is a decision. Discovering it on Monday is not.
Why it compounds
The reason this scenario is disproportionately damaging is that it never arrives alone.
The market fall that triggered one assignment is usually testing your other positions at the same time — correlation risk in action. Liquidating to meet the call reduces the account, which tightens the requirement on everything else, which can trigger further calls.
That cascade is how accounts end. Not from one bad trade, but from one bad trade in a book with no slack in it.
What can go wrong
Holding on margin to recover. A leveraged bet made under duress at 8-12% interest.
Ignoring the call. The broker liquidates on its terms, not yours.
Concluding assignment is the problem. The sizing was.
Rebuilding at the same size afterwards. The book had no slack; adding the same positions back recreates the condition.
Key takeaways
- The shares arrive whether or not you have the cash; the shortfall becomes a margin loan automatically.
- A margin call follows, and if unmet the broker liquidates at its discretion, at market, in a bad market.
- Selling the shares immediately is usually the best available exit — it ends a leveraged position you did not choose.
- The error was opening an obligation the account could not honour, not the assignment itself.
- It compounds because the move that triggered it is testing your other positions simultaneously.
Check your understanding
1. You are assigned on a $95 put with only $2,000 in the account. What happens?
2. Why is selling the shares immediately usually the best of the bad options?
3. What was the actual error in this scenario?