The One Change That Exponentially Improved a Debit Spread Strategy

Most traders are sitting on an edge they don’t even realize they have—and they’re throwing it away every time they let a debit spread ride to expiration.

I proved it to myself with one simple backtest on SPY debit spreads over the last 10 years. Keep in mind, I didn’t “optimize” this at all. I just grabbed a basic concept that should be profitable – trading 60 days out on the SPY and assuming it will go up more than down over time…

I ran two scenarios.

In the first, I traded like most people do: set up the spread, let it run its course, and hoped the stock finished above my strike at expiration. After a decade of trades, $10,000 turned into about $46,000. Not bad, but hardly life-changing.

Then I reran the exact same strategy — same entries, same expirations, same strikes — with one change. I added a simple 25% profit target.

Any time the trade hit that target at any point before expiration, the system cashed me out automatically. No waiting for the final day, no babysitting the chart, no stressing about whether the stock would stay above the strike at the closing bell.

The result?

That same $10,000 turned into more than $1.3 million over that same 10-year period.

Nothing else changed. Just the target.

Why such a massive difference? 

Because betting on where a stock will finish at expiration is a low-probability game – I only do it when I have so much cushion that the value of the trade is still going up when a stock is drifting down (think Income Machine).

In general, stocks don’t move in straight lines; they pop, pull back, chop sideways, then pop again. Expiration-only traders need that final candle to land in their favor.

But with a target in place, you’re simply betting that at some point during the trade’s life, you’ll get the move you need. And the probability of that happening is exponentially higher.

Here’s the other big edge: recycling capital.

By cashing out on those early pops, you’re freeing up money to get into the next trade. You’re stacking more trades in the same amount of time, compounding your edge.

Holding until expiration locks up your capital—and exposes you to premium decay that eats into your profits if the stock stalls or chops after making its move.

Think about it this way: if you give yourself a 60-day window, how many times do you think the stock will touch a profitable level compared to how many times it will finish exactly where you need it?

That $10K-to-$1M example answers the question pretty clearly.

Targets take the guesswork out of the equation. You don’t need to predict which candle will be the winner, or even how big the move will be. You’re just letting the math play out, cashing in on the inevitable pops that happen far more often than perfect expiration finishes.

If you’re still holding every debit spread to expiration, you’re leaving money—and a massive statistical advantage—on the table.

Add a target. Let the broker do the heavy lifting.

Because the difference between doubling your account and turning $10K into $1M might be as simple as deciding you’re done waiting for the last candle.

Hope this helps,

— Nate Tucci

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