The Slingshot Trade: How I Use a Ratio Risk Reversal to Sell Puts and Buy Calls
The Slingshot Trade is my name for a ratio risk reversal: I sell one- to two-year puts on a stock or ETF I’d be glad to own, and spend that credit on at-the-money calls with the same expiration. No extra cash goes into the calls. The puts are a paid limit order at my price; the calls are the upside I didn’t write a check for.
It isn’t a free lunch. As an advantage player I care less about how a trade looks on a good day and more about what it does on the worst one, so this article covers the mechanics, a real example with its odds, and the sizing that keeps it from ever being the trade that knocks me out.
Try the Slingshot Trade tool. Type any ticker and get today’s call: Take the 50%, Let the put work, Stalk it, Pullback looks done or Stand aside, with the pullback pocket and IV Rank.
Open the Slingshot Trade app →What is a risk reversal?
A risk reversal is an options strategy with two legs on the same underlying and expiration: sell a put and buy a call. The put’s premium pays for some or all of the call. You end up bullish: you gain if the stock rises above the call strike, and you take on the obligation to buy the stock if it falls below the put strike.
Risk reversal vs synthetic long
If the put and call share the same strike, the position is a synthetic long: it moves almost exactly like 100 shares per pair. A classic risk reversal sells an out-of-the-money put instead, so there is a dead zone between the put strike and the call strike where little happens. That gap is my margin of safety: the stock can pull back further and I’m still only obligated at a price I chose.
Selling puts to buy calls
Traders also describe it as selling puts to buy calls or put-financed calls. The names all point at the same swap: instead of paying cash for upside, you pay with a promise to buy the stock lower.
What makes it a ratio risk reversal
A plain risk reversal is one put for one call. The Slingshot Trade matches dollars, not contracts, and that makes it a ratio risk reversal:
- Unequal contract counts. An at-the-money call usually costs more than an out-of-the-money put, so one put rarely pays for one call. I sell enough puts to cover the call, or buy fewer calls. I don’t add cash.
- One to two years out. Long-dated options give a pullback time to heal, give the call time to work, and make the put credit big enough in dollars to fund an at-the-money call.
- The short put sits at a strike I’d be glad to own. Not the strike with the fattest credit. If I’d be unhappy owning the shares there, the trade is wrong before it starts.
- The calls are at the money and funded only by the put credit.
Because there are more short puts than long calls, the downside is bigger than one synthetic long: below the put strike, every short put loses dollar for dollar. That’s the cost of the free call, and it’s why sizing is the whole game.
Why I call it the Slingshot Trade
A slingshot only works if you pull the band back first. In this trade the pullback is the pull: a healthy 4–8% dip in a stock I want to own is when put premium is richest and my ownership strike is closest to a price I’d happily pay. I sell the puts into that tension. The calls the credit bought are the stone: if the stock rebounds, they’re what launches.
Sell the puts at the top of a rally instead and there’s no tension in the band: less premium, a strike further from where I’d want to own, and calls bought at the high. Timing doesn’t make the trade safe, but it decides whether the pieces are cheap or expensive.
A SPY example priced from real quotes
Here is a ratio risk reversal on SPY priced from Cboe’s delayed option quotes on Oct 26, 2026 (SPY at $765.18), using the Dec 17, 2027 expiration, 417 days out. The put strike, 700, is about 8.5% under the price. For the call I used the 770 strike, the closest at-the-money strike with a tight market: the 765 call was quoted 75.58 / 78.61 at the same moment, a good reminder that long-dated quotes can be wide one strike over.
| Leg | Bid / ask | Implied vol | Delta | Open interest | Cash |
|---|---|---|---|---|---|
| Sell 3 SPY Dec 17, 2027 700 puts | 28.07 / 28.20 | 21.5% | -0.24 | 5,103 | +$8,421 (at the bid) |
| Buy 1 SPY Dec 17, 2027 770 call | 73.66 / 74.04 | 18.1% | 0.62 | 1,380 | −$7,404 (at the ask) |
| Net | +$1,017 credit |
Three puts at the bid bring in $8,421; one call at the ask costs $7,404. That leaves a $1,017 net credit (about $1,056 at mid prices). The obligation: if SPY finishes under 700, I buy 300 shares at 700, which is $210,000.
How these are calculated: lognormal model at the put’s own implied volatility (21.5%, solved from the mid), risk-free rate 4.04% (13-week T-bill), no dividends, European-style legs. P50 is a Monte Carlo of 40,000 daily price paths (seed 20261025) repricing the puts each day. These are model odds at that moment, not a forecast, and they ignore early assignment and changes in implied volatility. More on POP vs POT vs P50.
What it looks like at expiration
| At expiration Dec 17, 2027 | SPY | Profit / loss |
|---|---|---|
| SPY up 20% | $918.22 | $15,839 |
| SPY up 10% | $841.70 | $8,187 |
| SPY unchanged | $765.18 | $1,017 |
| SPY at the 700 put strike | $700.00 | $1,017 |
| SPY down 20% | $612.14 | −$25,340 |
| SPY down 30% | $535.63 | −$48,295 |
Read the table from the bottom. The upside is open-ended because of the call, but the damage below the strike comes three times as fast as on one stock position. The POT number matters too: in this model SPY has better-than-even odds of trading at the put strike at some point, so I have to be comfortable holding through that.
Today’s implied volatility context for SPY:
When it fits
- Only on something I want to own. Broad ETFs like SPY and QQQ, or a stock I’d buy anyway. If assignment would feel like a disaster, the strike or the ticker is wrong.
- After a 4–8% pullback, once the dip shows signs of finishing, not while it’s still falling.
- Liquid underlyings. Long-dated options are where spreads get wide, so I stick to the deepest markets: SPY, QQQ and IBIT, or SPX (cash-settled and European-style, so no shares and no early assignment; XSP is the one-tenth-size version). Why I care so much about fills is in why I trade SPX, SPY, QQQ and IBIT options.
- Implied volatility not at a low. The puts pay more when IV Rank is higher; the calls cost more too, but the ratio usually favors the seller after a dip.
How the Slingshot Trade tool reads the chart
I built the Slingshot Trade tool so the timing isn’t a mood. Type any ticker and it reads completed daily bars plus SPY, QQQ and VIX, then gives one call:
- Take the 50%. The stock is stretched (RSI around 67 or more, or about 1.5 ATR above the 21-day average, near its recent high). If the puts are on, look at buying them back near half the credit and keep the calls. Don’t open new puts up here.
- Let the put work. Near the high, trend firm, no blow-off. No new trade.
- Stalk it. Something is pulling back but RSI hasn’t turned up with a higher close, or structure or the market disagrees. Pick the strike and expiration, wait.
- Pullback looks done. 4–12% under the recent high, RSI turned up with a higher close, the close holding the 21-day (or a rising 50-day), and VIX under about 24. This is the only call that says sell the puts and fund the calls.
- Stand aside. Price under a falling 21-day with RSI still dropping, or a stressed market. A falling knife is not my ownership price.
It also shows the 4–8% pullback pocket in dollars and the 1-year IV Rank where one exists. It doesn’t pick strikes; that part is yours.
Sizing: never blow up
In blackjack the count tells you when the edge is there; the bankroll decides whether you survive the swings while it plays out. The same is true here. My rules for the Slingshot Trade:
- Count the puts, not the calls. The risk lives in the short puts. I size so I could buy every share they obligate me to: in the example, $210,000 for three puts.
- Margin is not bankroll. A broker might only ask for about $34,778 on those puts today, but requirements rise as the stock falls. Selling more puts because margin allows it is how ratio trades blow up.
- Plan for the worst row of the table. If a $48,295 hit at a 30% drop would change my life, the position is too big.
- Take the 50% when it’s offered. Buying back the puts early removes most of the downside and leaves the calls running.
- Spread out the entries. Different tickers, different months. No single pullback should decide the year.
The risks
- Assignment. If the stock is under the put strike at expiration you buy the shares, and because it’s a ratio you may be buying more shares than the calls ever controlled.
- A hard fall. Below the put strike, losses grow with every dollar the stock drops, times the number of puts, while the calls go to zero.
- Margin and buying power. Requirements on short puts rise as the stock falls and implied volatility jumps. A margin call can force you to close at the worst time.
- IV crush. A drop in implied volatility shrinks the value of the long calls; long-dated options carry a lot of vega.
- Early assignment. SPY, QQQ, IBIT and single stocks are American-style. Deep in-the-money puts can be assigned before expiration, especially near ex-dividend dates.
- Wide markets on long-dated options. Spreads one to two years out are wider, as the 765 call above shows. Use limit orders, start at the mid and enter both legs as one order.
FAQ
What is a ratio risk reversal?
A risk reversal sells a put and buys a call on the same stock and expiration, so the put’s premium pays for the call. In a ratio risk reversal the two sides are matched by dollars, not by contract count: out-of-the-money puts are usually cheaper than an at-the-money call, so you sell more puts than you buy calls (for example three puts for one call) until the put credit covers the call.
Is a risk reversal the same as a synthetic long?
Close, but not the same. A synthetic long sells a put and buys a call at the same strike, which behaves almost exactly like owning 100 shares. A risk reversal usually uses an out-of-the-money put, so there is a gap between the put strike and the call strike where the position barely moves. A ratio risk reversal adds extra short puts, so below the put strike it loses faster than one synthetic long would.
Why sell puts to buy calls instead of just buying calls?
Because the put pays for the call. Long-dated at-the-money calls are expensive; selling puts at a price you’d be glad to own the stock turns that cost into an obligation you already wanted. The trade-off is the downside: if the stock falls through the put strike you can be assigned the shares.
What does “put-financed calls” mean?
It is another name for the same idea: the call is financed by premium from a short put instead of cash. Investors also call it a risk reversal, a collar in reverse, or (with unequal contract counts) a ratio risk reversal.
Why use one- to two-year expirations?
Long-dated options give the stock time to recover from a pullback, the call time to work, and the put credit is large enough in dollars to fund an at-the-money call. Time decay is slow at first, so neither leg needs daily attention. The cost is wider bid-ask spreads and more exposure to changes in implied volatility.
What is the Slingshot Trade?
It’s my name for a ratio risk reversal timed after a pullback: the dip pulls the band back, the short puts are sold while premium is rich, and the funded calls are what launch if the stock rebounds. The Slingshot Trade tool gives a daily call for any ticker: Take the 50%, Let the put work, Stalk it, Pullback looks done, or Stand aside.
Can my short puts be assigned early?
On stocks and ETFs like SPY, QQQ and IBIT, yes: they are American-style. Early assignment is most likely when a put is deep in the money and has little time value left, or just before an ex-dividend date. SPX index options are European-style and cash-settled, so they can only be exercised at expiration.
What is IV crush and how does it affect this trade?
IV crush is a sharp drop in implied volatility, often after earnings or once fear fades. It lowers the value of both legs: good for the short puts, bad for the long calls. Long-dated options carry a lot of vega, so the position’s value can move with implied volatility even when the stock doesn’t.
How much buying power does a ratio risk reversal need?
It depends on the broker and account. In my SPY example, three short 700 puts would need about $210,000 if fully cash-secured, or very roughly $34,778 under a common Reg T margin estimate. Margin requirements rise when the stock falls, exactly when you least want a margin call, so I size as if the puts were cash-secured.
What do POP, POT and P50 mean in the example?
POP is the model’s chance the whole position (puts plus call) makes money at expiration. POT is the chance SPY trades at the put strike at some point before expiration. P50 is the chance the short puts can be bought back for half their credit at some daily close: the “Take the 50%” exit. They come from a lognormal model at today’s implied volatility, not a prediction. See POP vs POT vs P50 explained.
Is this financial advice?
No. It is education from my own process. A ratio risk reversal can lose far more than the credit you collect, and you can be assigned shares. Read the OCC’s “Characteristics and Risks of Standardized Options” and size every position so no single loss can knock you out.
Ready to check a ticker? The Slingshot Trade tool reads the daily chart, SPY, QQQ and VIX for any stock or ETF and tells you whether the pullback looks done.
Open the Slingshot Trade app →