Risk & Position Sizing

The part that decides whether a bad month is annoying or account-ending.

2 min read

The wheel produces a long run of small wins broken by occasional large losses. That shape is fine — plenty of good strategies look like that — but it has a specific consequence: your results are set by how large the losses are allowed to get, not by how often you win. Sizing is that control.

Size by assignment, not by premium

The only question that matters when opening a put

Not "how much premium is this?" but "what happens if every put I have open is assigned at once?" That is not a remote scenario — it's a normal market drop, and it's the scenario the wheel is structurally designed to walk into. If the answer is a margin call, the position is too big regardless of the premium.

A $50,000 account

Five puts, $50 strike, one contract each = $25,000 of collateral. Comfortable.

Five puts, $100 strike = $50,000. Fully committed with nothing spare.

Five puts on the same ticker = one gap down assigns all five at once.

Five puts on five unrelated names = a far better distribution of the same exposure.

Some workable limits

Cap any one position at 5–10% of the account's collateral capacity.
Cap any one sector at ~25%. Sector moves are what turn several positions into one.
Keep 20–30% of buying power free. Cash is what lets you roll, average, or simply act when everything is cheap.
Never sell more contracts than you'd actually buy shares for. Selling three puts means committing to 300 shares. If that sentence is uncomfortable, sell fewer.

Correlation shows up at the worst time

Positions that look independent in a calm month move together in a bad one. Five puts across five different software companies is one bet on software, and it will be assigned as one bet. Diversifying across sectors matters more than diversifying across tickers — see choosing stocks.

Margin

Selling puts on margin is a different strategy

Cash-secured means the cash is there. Selling the same puts on margin — sometimes called a naked put — has an identical payoff until it doesn't: a large enough drop produces a forced liquidation at the worst possible moment, and the broker chooses the timing, not you. The premium is the same. The tail is completely different. Wheel Folio warns when your capital deployed exceeds your recorded cash balance for this reason.

Deciding to take a loss

Set the exit before you need it. A useful pair of triggers: close if the loss reaches roughly two or three times the premium collected, and close if the reason you opened the trade no longer holds. The second matters more. Rolling is what a plan looks like; rolling because you don't want to book the loss is what an absent plan looks like.

Educational only

Nothing here is investment, financial, or tax advice. Options carry risk, including losing more than the premium collected, and the examples use round numbers to show the mechanics rather than to suggest a trade. Read risk and position sizing before putting real money behind any of it.