F bull put spread: credit, risk, strikes
Cheap shares, a fat dividend yield, and a chain liquid enough to matter. The classic small-account covered-call underlying: 100 shares costs a couple of thousand dollars, and the premium is a meaningful percentage of that.
A bull put spread sells the $14 put and buys the $13.5 put for protection, both expiring Aug 28. On F at $14.68 that pays $13 up front against $37 of defined risk, with 71% probability of keeping the credit. It is the cash-secured put's capital-efficient cousin.
The trade, priced from the chain
27d to August 28, 2026| Leg | Qty | Price | Δ | IV | Cash |
|---|---|---|---|---|---|
| SellAug 28 $14 put | 1 | $0.30 | -0.31 | 36% | +$30 |
| BuyAug 28 $13.5 put | 1 | $0.17 | -0.20 | 37% | −$17 |
Every leg above is priced at the chain’s own quote — the identical number the builder will show you when you click through (last traded price), captured August 1, 2026 with a 15-minute delay. Only strikes whose print survives an implied-volatility check (within 20% of its own IV) and a no-arbitrage check across the ladder are priced here. Full methodology. Greeks, breakevens, max profit/loss and probability of profit are computed by OptionTracker’s engine at r = 4.2%. Educational analysis, not investment advice.
Yield on the capital this actually ties up
Annualized figures assume the same trade repeats every 27 days at the same premium. Nothing does. Use them to compare strikes and tickers, not to forecast a year.
How a bull put spread works
You are still selling downside — just not all of it. The long $13.5 put cuts the tail off below that level, which is why this needs $37 of buying power instead of the $1,400 a cash-secured put would tie up.
Above $14 at August 28, 2026, both puts expire worthless and you keep the full $13. Below $13.5, you lose the maximum $37. Breakeven is $13.87.
Return on risk is 35% for 27 days — 475% annualized. That headline is the reason people prefer spreads to cash-secured puts, and the reason spreads blow up accounts: the same capital supports several times the notional risk.
When it makes sense
- IV is rich — at 35% ATM, F is the 11th richest of the 20 underlyings on this site — and you want to be short vega.
- You want a hard floor. The long wing turns an open-ended obligation into a known $37.
- You do NOT want the shares. If you'd rather own F at $14, the cash-secured put is the better instrument — assignment there is the plan, not the accident.
- Implied vol is above what the name has actually been realizing. Short premium with no vol-risk premium behind it is a coin flip with commissions.
Where the risk actually is
The risk is leverage, not the structure. $37 per spread is small; the temptation to sell ten of them because the buying power allows it is how a 71%-win-rate trade produces a losing year.
Early assignment on the short leg leaves you long 100 shares plus a long put — a synthetic call, not a disaster, but a position you did not choose and one that requires $1,400 of cash on Monday.
Liquidity is a risk, not a convenience. The moment you most want out of a short-premium position is the moment the spread is widest, and the exit price you modelled at mid will not be available.
Reading the F chain
Ford is a dividend trade with an options overlay, and getting the order of those two right is the whole game. The yield is large enough that an ITM short call the night before an ex-date is a genuine early-assignment risk rather than a textbook footnote — the extrinsic value on a low-priced, low-vol contract is often less than the dividend, which is exactly the condition that makes exercise rational. Check the ex-date before every write, not once a year.
F's Aug 28 strikes are $0.5 apart near the money (3.41% of spot). That is a coarse ladder: one rung is a large fraction of the implied move, so precision on the short strike is an illusion. 11k contracts of open interest on Aug 28 is thin, and a structure that needs four separate fills will pay for it. 15 strikes on that expiry — 36% of the board — carry prints that agree with their own implied volatility and hold up across the ladder, and those are the strikes priced here. Liquid near the money, and the penny increments on cheap contracts mean the spread is a large fraction of the credit.
Skew is ordinary — the 25-delta put implies 3.0% more vol than the 25-delta call, about what an equity surface looks like when nothing unusual is being priced. Neither side of the chain is being singled out, which is the condition under which a symmetric structure like a condor is actually symmetric. The term structure is flat inside 1.5% between the two captured expiries, so there is no calendar edge to harvest and no event visibly priced into one month over the other.
At 35% ATM implied vol, the Aug 28 options are pricing a one-standard-deviation move of $1.38 over 27 days — roughly −9.4% to +9.4%, or $13.3 to $16.06. The structure above sells the part of that distribution the market thinks it will not reach. Whether that is a good trade is entirely a question of whether 9.4% is too much or too little for F over 27 days — the delta table cannot answer that, and neither can we.
The specific way people lose money on F: Getting called away the day before the dividend and discovering the yield you were writing calls to enhance is the yield you just forfeited.
Picking the strike on F
Place the short strike on delta, then choose the width you can afford to lose. On F at $14.68:
| Band | What it means | When it fits |
|---|---|---|
| 0.10 – 0.16 Δ short | Well below the market | High probability, thin credit. Needs strict sizing; the tail still exists.On F: the Aug 28 $13 put at $0.10, 9% annualized |
| 0.20 – 0.30 Δ short | The standard credit-spread band | Credit ≈ 1/3 of width is the usual quality bar. Most spreads live here.On F: the Aug 28 $13.5 put at $0.17, 16% annualized |
| 0.35 – 0.45 Δ short | Close to the money | Rich credit, frequent management. You are taking a real directional view.On F: the Aug 28 $14 put at $0.30, 28% annualized |
| Width | Sets max loss per spread | Narrower = smaller risk per unit, worse credit/width ratio after fees. |
The live Aug 28 put chain below carries the deltas. Credit divided by width is the number to compare across strikes — anything under 25% is usually not worth the tail you're renting out.
Across the nine rungs below, the premium runs 97.5× from the cheapest strike to the richest — that curve is the whole strike-selection decision, drawn. Open interest concentrates at $13 on this expiry, which is usually where the fills are cleanest.
| Strike | vs spot | Mid | Δ | IV | % of spot | Ann. | OI |
|---|---|---|---|---|---|---|---|
| $11.5 | −21.7% | $0.02 | -0.02 | 45% | 0.1% | 2% | 16 |
| $12 | −18.3% | $0.02 | -0.03 | 41% | 0.1% | 2% | 59 |
| $12.5 | −14.9% | $0.06 | -0.07 | 41% | 0.4% | 6% | 171 |
| $13 | −11.4% | $0.10 | -0.12 | 39% | 0.7% | 9% | 466 |
| $13.5 | −8.0% | $0.17 | -0.20 | 37% | 1.2% | 16% | 427 |
| $14used | −4.6% | $0.30 | -0.31 | 36% | 2.0% | 28% | 184 |
| $15 | +2.2% | $0.78 | -0.58 | 37% | 5.3% | 72% | 180 |
| $16 | +9.0% | $1.73 | -0.78 | 39% | 11.8% | 159% | 53 |
| $16.5 | +12.4% | $1.95 | -0.84 | 42% | 13.3% | 180% | 18 |
F puts expiring August 28, 2026· 15-min delayed capture · “Ann.” annualizes the mid as a percentage of spot over 27 days.
Managing the position
- Close at 50% of max profit, same as any short-premium trade.
- Never let a tested spread ride into expiry week hoping for pin luck — assignment mechanics on one leg are messier than the loss you were avoiding.
- Duration beats delta for controlling risk. Selling a 45-day option and closing it at 21 days puts you in the flattest part of the gamma curve; selling a 7-day option at the same delta puts you in the steepest.
- Do not add to a tested position to lower the average. Averaging into short premium works right up until the one time it does not, and that time is the one that matters.
Common mistakes
Treating it as a cash-secured put
A CSP that goes wrong leaves you owning F at a basis you chose. A put spread that goes wrong leaves you with $37 gone and no shares. Different trades, different plans.
Selling spreads in low IV
Credit spreads are short vega. Selling them when F's 35% IV is at the low end of its range means you collect little and own the risk of vol expanding.
Sizing against buying power
Margin requirement is what the broker will let you do, not what you should do. The relevant limit is the loss you can absorb without changing the plan.
F bull put spread FAQ
How much buying power does this F put spread need?
About $37 per spread — the width minus the credit. Compare that with $1,400 for the equivalent cash-secured put.
Can I be assigned before expiry?
Yes, on the short $14 put if it goes deep in the money — most likely around an ex-dividend date or in the final week. You would be long 100 shares and still hold the long put as protection until August 28, 2026.
How much is F expected to move by Aug 28?
The Aug 28 options imply a one-standard-deviation move of $1.38 — about 9.4% of the F share price — over the 27 days to expiry. That is the market's estimate, not a forecast: roughly a third of the time the actual move is larger.
How wide are F option strikes?
About $0.5 apart near the money on the Aug 28 expiry — 3.41% of the share price per rung. That sets how precisely you can place a short strike, and how granular a spread's width can be.
Build it yourself
Everything above is one construction at one moment. Open it in the builder to drag strikes along the ladder, scrub the expiry, and watch max profit, breakevens and probability of profit recompute live against the real F chain — free, no account.
Related reading
- What a cash-secured put actually paysThe annualized-return column is the one everybody screenshots. It is also the one that tells you least. Here is the whole ladder — return, probability, breakeven, and the loss that takes six winners to repair.
- Strike selection with delta and IV"Sell the 30 delta" is the most repeated rule in retail options and nobody can tell you what it means. Here is what delta actually measures, where it stops matching probability, and how far off it gets on a high-IV name.
- The wheel strategy, with real numbersEveryone can recite the four steps. Almost nobody can tell you what a completed cycle returned on the capital it tied up. Here is one, priced off a real chain and folded by the same engine that runs our tracker.
Other F strategies
- F covered callSell upside on shares you already own and get paid for the cap.
- F cash-secured putGet paid to place a limit order below the market.
- F iron condorSell a range, buy the wings, collect if the stock stays put.
- F bull call spreadBuy a call, sell a higher one — cheaper upside with a ceiling.
- F long straddleBuy the call and the put — pay for a move in either direction.
- F long strangleOTM call plus OTM put — cheaper than a straddle, needs more move.
- F long callDefined-risk upside with a deadline attached.
- F long putDefined-risk downside, or insurance with an expiry date.
- F calendar call spreadSell the near-dated call, buy the far one — rent time twice.
Bull Put Spread on other tickers
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