Selling a Put Instead of Leaving a Limit Order
Both say you would buy lower. Only one pays you to wait, and only one catches an overshoot.
Worth reading first: Cash-Secured Puts, From Cash to Assignment
Course contents97 lessons · 91 questions
You want to own a stock, but not at today's price. You would buy it 5% lower.
There are two ways to express that. Leave a limit buy order at your price, or sell a cash-secured put at the same strike. Both commit the same money and both express the same view — and they behave differently in every scenario that matters.
Getting paid for the wait
The put's premium is the difference between the two approaches. Adjust the strike and expiration to see what patience is worth.
Stock trading at $100.00
Four outcomes, side by side
Stock at $100, you want it at $95. The limit order sits at $95; the put is a 30-day $95 strike sold for $200.
| What happens | Limit order | Short put |
|---|---|---|
| Stays above $95 | Nothing | +$200 |
| Touches $95 then rebounds | You own it at $95 | Probably nothing, +$200 |
| Closes at $93 | Own at $95, −$200 unrealised | Own at $95, +$200 credit — net $93 |
| Gaps to $70 | Filled near $70 | Assigned at $95 |
| Rallies to $120 | Nothing, missed it | +$200, missed it |
The same intention, expressed two ways.
Read rows two and four together. They are the two genuine differences, and they point in opposite directions.
Where the put wins
You are paid for the wait. The limit order earns nothing while it sits. Over a year of monthly puts that never get assigned, the premium is real income on capital that would otherwise have been idle.
Your effective entry is lower. Assigned at $95 having collected $200, your cost basis is $93. The limit order buys at $95 exactly.
It enforces discipline. A limit order can be cancelled in a panic. An open short put commits you.
Where the limit order wins
It catches an intraday touch. This is the big one. A limit order fills if the stock trades at $95 at any point. A put only assigns based on where the stock sits at expiration — a dip to $92 mid-month that recovers by Friday leaves you with the premium and no shares.
If your actual goal is to own the stock, that is a failure. You collected $200 and did not get what you wanted.
It fills at the overshoot. A crash to $70 fills a limit order near $70. The put assigns you at $95 regardless of how far below the stock went. In a genuine dislocation the limit order buys much cheaper.
It is immediate and free. No approval level, no expiration to manage, no assignment mechanics.
A reasonable middle path
Sell the put, and if the stock trades well below your strike during the month, close the put and buy the shares outright. You keep whatever the put has earned or pay a modest amount to close, and you get the overshoot price.
This requires attention, and it only works if the chain is liquid enough to close cheaply — see the liquidity checklist.
One thing that is identical
Both commit $9,500 of capital. The put ties it up formally as collateral; the limit order ties it up practically, because spending it elsewhere means the order cannot fill.
People routinely account for the put's collateral and forget the limit order's. Both are the same commitment — see buying power and collateral.
What can go wrong
Selling puts while wanting the shares. The strategy's good outcome is your bad one.
Expecting assignment on an intraday dip. Assignment follows the expiration price.
Ignoring the overshoot case. The put assigns at the strike no matter how far below the stock trades.
Selling a put on something you do not want to own. Then neither instrument is the right one.
Key takeaways
- Both approaches commit the same capital and express the same willingness to buy lower.
- The put pays you for waiting and lowers your effective entry by the premium collected.
- The limit order fills on any intraday touch; the put only assigns based on the expiration price.
- In a crash the limit order fills at the overshoot while the put assigns at the strike regardless.
- Choose by what you actually want: income with acceptable assignment, or the shares at a price.
Check your understanding
1. The stock dips to $92 mid-month then closes at $98 on expiration. What happens to each?
2. The stock gaps to $70. Which approach gives the better entry?
3. When is selling the put clearly the better choice?