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Monthly cash-secured puts: why this is the default rhythm

Monthly cash-secured puts, sold 30 to 45 days out and reviewed around 21 days, are the default rhythm for most sellers. The premium is worth the locked cash, the cushion is real, and a bad week leaves you time to act instead of a forced result on Friday.

Options guide · 7-minute read · Updated 2026-10-26

What "monthly" means

Every stock with options has a standard expiry on the third Friday of each month. That's the "monthly." It's usually the most traded date on the Options chain, with the tightest bid-ask gaps and the most Open interest.

Selling a put 30 to 45 days before that date, then closing or letting it expire, is the monthly rhythm. One trade, one review, one decision each month.

Why it's the default

Four reasons, each a trade-off against the weekly version:

The monthly isn't "better" on every line. It pays less per year on paper. What it buys is room: room for the stock to dip and come back, room to close at half the premium, room to roll before the last-week swings.

The theta decay guide explains why the 30-to-45-day window pays reasonably without sitting in the fast-swing zone.

A month, start to finish (an illustration, not a trade idea)

XYZ at $50. You'd buy it at $45. On day 0 you sell the $45 put with 38 days left for $1.00. Premium $100, cash set aside $4,500.

The day-10 dip was nothing. With 28 days left, a $2 drop barely moved the put. By day 17 it had recovered and you could take more than half. That recovery window is the thing a weekly doesn't have.

Now the month that goes wrong. Same trade, but XYZ falls:

On day 17 you had three weeks left and a clear choice: close for −$140, roll down and out, or take the shares. A weekly seller hit by the same move would have been assigned before the choice existed. The monthly didn't prevent the loss. It gave you a Tuesday to deal with it instead of a Friday.

The rhythm, written down

Most sellers who run the wheel strategy on monthlies keep a short routine:

1. Sell 30 to 45 days out, at a strike you'd happily buy at, after checking the earnings date.
2. Set a profit take at about half the premium. Close when it hits, free the cash, wait for the next month. See closing a cash-secured put early.
3. Set a loss trigger at about double the premium, or a stock price you've chosen. Decide in advance: close, roll, or take the shares.
4. Review at 21 days left no matter what. If the put hasn't hit either trigger, close or roll it anyway and start fresh. The last three weeks are where the swings live.
5. Journal it. Strike, premium, what happened, what you did. After twelve rows you'll know whether the rhythm fits you.

When monthly isn't the right pick

• The stock has earnings inside every monthly window. Some do. Pick an expiry that ends before the date, even if that's a weekly.
• You want a very fast, small test. A couple of weekly trades can teach the mechanics faster. Just don't mistake a fast lesson for a method.
• The monthly strike you want has no bid. On thin stocks, the monthly is sometimes the only liquid date, but on some the nearest weekly is. Check the chain.

The comparison of both rhythms is in weekly cash-secured puts, and the expiry choice in general is in which expiry for a cash-secured put.

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