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A cash-secured put, worked end to end

Sell one cash-secured put on a stock you would be glad to own at a lower price, and follow it from the day you sell to the day it resolves. By the end you will have one open put, the premium it paid, and a clear picture of the two outcomes you have signed up for.

You will need:

  • A stock you would genuinely be happy to own at a price below where it trades today.
  • The full cash to buy 100 shares at your chosen strike, set aside and not needed elsewhere before expiration.
  • An options-approved brokerage account.

Step 1: Pick a stock and a price you’d accept

Section titled “Step 1: Pick a stock and a price you’d accept”

A single stock trades at $52. You have followed it, you would be content to own 100 shares of it, and the price you would actually pay is $50, a little below today’s quote. That is the only kind of stock this trade belongs on: one you want to own at the strike, with cash ready to buy it.

The $50 strike comes from that judgment, not from the option chain. You picked the price you would pay first; the strike just names it. A strike closer to $52 would pay a larger premium now but commit you to buying nearer today’s price, with less room for the stock to fall before you are on the hook. A strike well below $50 would pay less and rarely assign, which is fine if you only want the shares much cheaper. $50 is the price you settled on as a buyer.

Step 2: Set aside the cash and choose the expiration

Section titled “Step 2: Set aside the cash and choose the expiration”

Set aside $5,000, the cost of 100 shares at the $50 strike. Holding that cash in reserve is what makes the put cash-secured: if you are assigned, you buy the shares with money you already have, never on margin.

Choose an expiration about a month out. A roughly 30-day term collects a meaningful premium while keeping the commitment short, so you can decide fresh each time. A weekly expiration pays less per contract and asks for more frequent decisions; a several-month expiration pays more up front but locks the cash and the obligation in place far longer.

Sell to open one $50 put expiring in about a month. For taking on the obligation to buy 100 shares at $50, you collect a premium.

Historically a put written modestly below the price on a stable, liquid stock has paid on the order of 0.5–1.5% of the strike for a roughly one-month term. On this $50 strike that is somewhere around $60 for the contract. Read that as one month’s arithmetic under one set of conditions, not a rate to annualize and count on. The same put pays less when volatility falls and more when it rises, and an upcoming earnings report inflates it because the risk is genuinely higher.

You now hold $60 in premium, $5,000 in reserve against the strike, and one open obligation to buy at $50 if the put finishes in the money.

Step 4: See both ways it resolves at expiration

Section titled “Step 4: See both ways it resolves at expiration”

Whether you are assigned turns on where the stock closes at expiration relative to your $50 strike. There is no favorable branch to plan around; both are part of the trade you took on, and you keep the $60 either way.

The stock stays above $50. The put expires without assignment. You keep the $60, your $5,000 is freed up, and you owe nobody any shares. Measured against the $5,000 you held in reserve, the $60 is about 1.2% for that one month, for that period only, not a rate that repeats. You can now decide, from scratch, whether to sell another put.

The stock closes below $50. You are assigned. You buy 100 shares at $50 using the cash you set aside, and you keep the $60. Your effective cost is $49.40 a share: the $50 strike less the $0.60 per share you collected. That is below the $50 you had already decided you were happy to pay. If the stock has fallen well past $50, say to $46, you still buy at $50, and the paper loss is real, the same loss any buyer at $50 would carry. The premium softens the cost basis by $0.60 a share; it does not erase the drop.

One cash-secured put, one month, on a stock you would be happy to own at $50:

Stays above $50Closes below $50
Premium kept$60$60
Shares ownednone100 at an effective $49.40
Cash in reservefreedspent buying the shares
What’s nextdecide fresh on another putyou own a stock you wanted, at your price

You collected $60 for taking on the obligation. If the stock held, that income was the entire result, and it is a fine one. If it fell through your strike, you own a stock you had already vetted, at a cost basis below the price you chose. Neither branch is a surprise, because you only sold the put on terms you would accept on the day you were assigned, not just the day you sold.

You have sold one cash-secured put, read what it paid, and seen both ways it resolves. From here:

  • How cash-secured puts work: the mechanics behind this walkthrough, the obligation, what cash-secured means, and how delta loosely maps to the odds of assignment.
  • Choosing a strike for a cash-secured put: how to set the price you’d pay in Step 1, and how strike distance trades premium against the chance of assignment.
  • Covered calls: the mirror-image income decision, on shares you already own and would be willing to sell. It is judged on its own merits, not run as a loop off this put.