Cash-Secured Puts: Getting Paid to Wait for a Good Price
A cash-secured put (CSP) is one of the most beginner-friendly options strategies because it has an intuitive real-world analogy: you are placing a limit buy order and getting paid to wait for it to fill.
How It Works
When you sell a put option, you accept the obligation to purchase 100 shares at the strike price if the buyer exercises the contract before or at expiration. In exchange, you receive the premium immediately in your account.
The "cash-secured" part means you must hold enough cash to cover the potential purchase — 100 × strike price. This is not borrowed money; it is collateral you already own.
A Step-by-Step Example
- Choose a stock you want to own — say XYZ trading at $50.
- Pick a strike below the current price — say the $47 put — representing a ~6% discount from today's price.
- Choose expiration — 30 days out is a common starting point.
- Sell the put and collect, say, $1.20 in premium ($120 per contract).
- At expiration:
- If XYZ is above $47 → put expires worthless, you keep $120, repeat.
- If XYZ is below $47 → you buy 100 shares at $47, effective cost $45.80 after subtracting premium.
Choosing the Right Strike
Strike selection involves balancing two competing goals: maximum premium versus acceptable assignment risk. A common framework:
- Delta 0.20–0.30 — approximately 20–30% probability of expiring in-the-money, strikes ~1–2 standard deviations out-of-the-money.
- Support levels — look for technical levels where the stock has bounced in the past; these make psychologically comfortable strikes.
- Intrinsic value — only sell puts on stocks you have independently assessed as worth owning at that price.
Managing the Trade
Most professional traders close short puts when they have captured 50% of the maximum profit rather than holding to expiration. This frees up capital for the next trade and eliminates the tail risk of a sudden reversal in the final days.
If a put moves against you and IV remains elevated, rolling to a later expiration at the same or slightly lower strike can collect additional credit while giving the stock more time to recover.
Common Beginner Mistakes
- Selling on stocks you would not own — assignment is always possible; never sell a put on a company you would not hold long-term.
- Over-concentrating — selling puts on 10 different tech stocks is not diversification; they move together in a downturn.
- Ignoring earnings dates — check the earnings calendar before entering a position that spans a report date.
- Chasing yield — an unusually high premium usually signals an unusually high risk; high IV Rank is healthy, extreme IV often signals a binary event.
Getting Started with Kairos
Kairos manages cash-secured put cycles across multiple tickers simultaneously, automating strike selection, expiration choice, and roll decisions based on your configured risk tolerance. The result is a disciplined, rules-based income program rather than a series of ad-hoc bets.