[Options for Beginner] How to Use Short-Puts to Buy-the-Dip?

Moomoo Learn wrote a column · Dec 23, 2025 02:26

[Options for Beginner] How to Use Short-Puts to Buy-the-Dip?

Short-puts is one of most important strategies in the options toolkit. It’s highly versatile—effective both aggressively and defensively. In this three-part series, we’ll break down how short puts work across different market regimes: (1) buying the dip, (2) range-bound markets around highs, and (3) uptrends.

This is Part 1: using short puts to buy the dip.

Advantages

During a selloff, it’s extremely difficult to pinpoint the exact bottom. If you “buy the dip” with the underlying stock, you typically need to scale in over multiple tranches.

Using short puts to buy the dip with strike prices below spot can: (1) create a buffer (more room for the stock to fall), and (2) gives investors a chance to acquire shares at a lower effective price if you get assigned.

Compared with buying the underlying outright, short-put dip-buying has two key advantages:

(1) You collect time value (premium) as an option seller, which effectively boosts cash yield while you wait.

(2) By choosing a strike below spot, you position yourself to potentially buy shares at a lower price if the stock continues to decline.

How to Structure a Short-Put

There is no universal formula for choosing strikes and expiries—these parameters should be tailored to the stock’s historical behavior.

For example, if historical data suggests that during “normal” market pullbacks (i.e., not a crash), a stock’s maximum drawdown is typically ~30%, then once the stock is already down about 20%, you might set the put strike another 20–30% below the current price, leaving ample room for tail risk.

Conversely, if a stock typically pulls back no more than 10%, then once it’s down around 8%, setting the strike ~10% below spot may already be relatively conservative.

As for tenor, you should also align it with the stock’s typical correction duration. If a usual pullback lasts 1–2 months, and the stock has already been falling for one month, the downturn may plausibly end within the next month—so your short-put expiry should not be overly long. An excessively long tenor causes theta decay to accrue too slowly, reducing capital efficiency.

Risks

Every advantage comes with a corresponding risk. The two biggest risks of short puts are:

(1) Persistent downside / crash risk: if the stock keeps selling off, you may be assigned and end up holding shares at a loss. If the stock fails to recover back above the strike for an extended period, the position becomes passive and capital-intensive.

(2) Upside opportunity cost: if the stock rebounds sharply right after you sell the put, your upside is capped at the premium received—you won’t participate in the full rally the way you would by owning shares.

How to address these two risks:

– For the first risk, you can buy a lower-strike long put beneath your short-put strike, forming a bull put spread (credit put spread) to define downside risk.

– For the second risk, you can pair the trade with some underlying shares to reduce the chance of missing a strong upside move.

Stock selection matters

A larger—and often overlooked—risk is the quality of the underlying. You should only run this strategy on stocks with sound fundamentals and long-term upside potential. Otherwise, repeatedly selling puts and repeatedly getting assigned can leave you holding a pile of “junk” that keeps falling and never truly recovers.

Take the example of CRCR, a stock that at one point this year surged to 300 shortly after listing, but later collapsed to around 60. How many “-20%” moves are there from 300 to 60?

300 → 240 → 192 → 153 → 123 → 98 → 78 → 62 …

If an investor sold puts every time the stock fell 20%, and each time set the strike another 20% lower—then over this path they could be forced to take delivery six times, with the stock dropping another 20% after each assignment. Suppose the first assignment happens at 192, with the same contract size each time, ignoring premium. By the time the stock reaches 62, the investor’s total principal loss would be as high as 47%!!!

Calculation:

= 62 × 6 / (192 + 153 + 123 + 98 + 78 + 62)

In other words, the stock would need to double from 62 just for the investor to break even—which is far from guaranteed.

So the most important prerequisite for “buying the dip with short puts” is that the stock must be a high-quality asset, not a name that keeps collapsing and cannot recover.

Case study

After the cautionary example, let’s look at a constructive one.

Assume OGVA rallied strongly on a hot theme this year, moving from an annual low of 130 to a high of 400. After earnings, it sold off for a week and printed a low near 320. An investor is bullish on OGVA’s 2026 outlook and views 320 as a fair, “neutral” entry level—but worries the stock could keep falling. They choose a short-put approach.

Trade structure:

– Sell a 4-month put on OGVA

– Strike: 260

– Premium received: 10.8

Follow-ups

Case 1: After entry, OGVA stabilizes and rebounds. Within a week the stock bounces to 340, and the put premium drops to 7. The investor earns about 30% on the option. They can either keep holding to harvest further theta decay, or take profits and redeploy into a new setup.

Case 2: After entry, OGVA declines to 300. Even though the stock hasn’t reached the strike, the short put will likely show a mark-to-market loss.

Case 3: After entry, OGVA sells off hard and trades below 260. The investor may be assigned and buy shares at 260. If the stock subsequently rebounds to 300, the investor has roughly a 15% gain on the shares.