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Break-even math across a whole wheel cycle

Each trade in the wheel has its own break-even, and the whole cycle has a running one that drops every time you keep a premium. Here's the arithmetic across two puts, one assignment and three calls, on a stock that keeps falling.

Options guide · 9-minute read · Updated 2026-10-26

Two kinds of break-even

A single short put breaks even at the Strike price minus the premium. A single Covered call breaks even at your share cost minus the premium. Those are the per-trade numbers.

The wheel strategy strings trades together, so sellers also track a running break-even: the price you paid for the shares, minus every premium you've kept on that stock so far. It falls with each cycle. It's the number that tells you whether the whole effort is above water.

The trap is assuming it falls fast enough. Premiums are small. Stock moves are not.

The formulas, in one place

• Short put break-even = strike − premium.
• Covered call break-even = share cost − premium.
• Running break-even after assignment = assignment price − (all premiums kept) + (anything paid to buy options back).
• Where you stand = (current price − running break-even) × 100, per 100 shares.

Keep the running number in your journal. Cost basis after assignment explains why it differs from the basis your broker reports for tax.

A worked example (an illustration, not a trade idea)

A made-up stock, XYZ, trades at $50. Round numbers, one contract, five trades over about five months.

Trade 1. Sell a 30-day $45 put for $1.00. XYZ is $48 at expiry. Expires. Premium kept: $100.

Trade 2. Sell another $45 put for $1.00. XYZ falls to $42. Assigned: you buy 100 shares at $45, paying $4,500. Premiums kept: $200. Running break-even: $45 − $2 = $43. XYZ is $42, so you're already $100 under.

Trade 3. XYZ is $42. You sell a $45 call for $0.60. XYZ drifts to $40 at expiry. Expires. Premiums kept: $260. Running break-even: $42.40.

Trade 4. XYZ is $40. The $45 call pays almost nothing now, so you sell a $43 call for $0.50. XYZ falls to $37. Expires. Premiums kept: $310. Running break-even: $41.90.

Trade 5. XYZ is $37. You sell a $42 call for $0.50. XYZ ends at $36. Expires. Premiums kept: $360. Running break-even: $41.40.

The running number, trade by trade

Look at the two right-hand columns together. The break-even fell $1.60 over three calls. The stock fell $6 over the same three months. Every premium you kept was real. It just wasn't big enough.

What the "even if" rows look like

It helps to see the other endings of trade 5, to be fair to the method.

Even the best ending is +$60 for five months with $4,500 committed, because trade 5's call was struck at $42, below the $45 you paid. If XYZ had rallied to $55, a plain shareholder would be up $1,000; you'd be up $60. That's the cost of selling calls below your cost to keep the premiums coming. The strike-below-cost trap is the page for that decision.

What this cycle teaches

• Premiums lower the break-even slowly. Each one is small next to the share price. Here, three calls lowered it by $1.60 while the stock fell $6. A big drop takes many cycles of premium to cover, and only if the stock then sits still.
• The second put was the real decision. Being assigned at $45 on a stock heading to $36 is where the loss was made. Everything after was repair. Assigned and the stock kept falling covers that moment.
• Calls below cost cap the recovery. The $43 and $42 calls paid $100 together and gave away any rally above $42.
• The running break-even is honest only if you write it down. Many sellers remember the premiums and forget the share price.

Before your first cycle, build this table on paper with your own stock and strikes. Fill in a falling column for the price, not a rising one, and see what the running break-even does next to it. The cushion page shows how much of a fall each single trade can absorb; the options math cheat sheet has every formula on one page.

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