What is a Cash Secured Put? Benefits, Strategies and Risks Explained

Rahul Pawar

Last Updated: 17 Aug 2026, 01:30 PM IST

What are Cash Secured Puts Strategy
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A cash-secured put (CSP) is an options strategy in which you sell a put option while keeping enough cash aside to buy the underlying stock if the option is assigned. It can help investors earn premium income while potentially buying a stock at an effective price below its current market price.

However, a CSP is not risk-free or a guaranteed income strategy. A sharp fall in the underlying stock can result in significant losses, while the cash set aside for the position may remain unavailable for other investments. This article explains how cash-secured puts work, their benefits and strategies, and the key risks you should consider before using them.

What is Cash Secured Put?

A cash secured put is a strategy in options trading where an investor sells a put option while setting aside enough cash to buy the underlying stock if assigned. In simple terms, you're offering to buy a stock at a specified price (strike price), and you receive a premium for taking on that obligation. The "cash secured" part refers to the fact that you keep the full amount of money ready in case you have to purchase the shares.

This is often viewed as a more cautious approach to entering a stock position. Instead of buying the stock outright, the investor waits to see if the price falls to the desired level—earning a premium either way.
 

Cash Secured Put Example

Let’s say you're eyeing a company trading at ₹1,000 but would prefer to buy it at ₹950. You sell a put option with a strike price of ₹950 and receive a premium of ₹20 per share. You keep ₹95,000 aside to purchase 100 shares if the price falls.

There are two possible outcomes:

  • Stock stays above ₹950 – The option expires worthless, and you pocket ₹2,000 (₹20 × 100).
  • Stock falls below ₹950 – You buy the stock at ₹950, but effectively at ₹930 after accounting for the premium.

This real-world example shows how cash secured puts can either give you discounted stock or guaranteed premium income.

Benefits of Cash Secured Put

Indian investors willing to use cash-secured puts as a steady income should know the top benefits offered by this strategy. Some of these have been explained below:

1. Earn Upfront Cash

Investors selling a CSP get an upfront cash payment. You can use the money irrespective of whether the stock price is rising or falling. However, they should have sufficient balance in their bank account, so they can buy the underlying asset if its price falls.

Example: If a tech company stock trades at ₹500 and you sell a ₹450 put option at a premium of ₹10, you will earn an upfront cash of ₹1000 (if the lot size is 100) directly into your broker’s account.

2. Get Discounts on Quality Stocks

The CSP strategy is generally preferred by investors who do not want to buy high-priced stock directly. They have the flexibility to set a low strike price and buy the stock at a lower price after its price drops below the strike price.

Example: If a tech company stock trades at ₹1000, investors can sell a ₹800 strike put. At expiry, if its price drops to ₹700, they can buy it at ₹800. This means they can buy the stock at a lower price than its original market price.

3. Use Ideal Cash

There are a few instances when investors keep idle cash in their trading account before buying shares of a stock as they wait for a market correction. An easy way they can monetise the idle cash and earn returns is by using it as collateral to sell puts.

Example: For example, if you hold ₹5,000,000 in idle funds waiting for a high-quality stock to correct, you can allocate those funds to fully back a CSP lot, earning option premium income while waiting for your desired entry target.

What is Cash Secured Put Selling?

Cash secured put selling is the act of writing (selling) put options while simultaneously setting aside enough funds to fulfil the purchase if the option is exercised. For example, if you sell one put option contract for a stock priced at ₹500 with a strike price of ₹480, you must have ₹48,000 in cash ready (assuming one contract equals 100 shares).

This method of selling cash secured puts for income allows traders to earn consistent returns while waiting for the right price to buy a stock. It’s a strategy often paired with covered calls and cash secured puts to build a more robust income-generating portfolio.
 

Top 3 Strategies When Selling Cash Secured Puts

The primary benefit of CSP is to earn money by collecting premiums. But if you are wondering “How can I use a cash secured put strategy?”, you have to ensure that your strategies align with the broader goal of steady income and controlled stock acquisition.

Some of the effective strategies used during selling CSP are mentioned below:

1. Select the Right Stock

Instead of choosing any random stock for selling or writing puts, you have to finalise the ones you truly want to own. You have to be strict when choosing the top price to buy something. Simultaneously, you have to place a limit order when buying those.

For example, you should avoid selling puts at the strike price of ₹500 for a stock if you are not comfortable buying 100 shares of the stock when its price drops.

2. Decide Position Sizing

An experienced investor knows how much money they can risk on a single trade. Experienced traders manage position sizing by allocating only a portion of their total portfolio to any single Cash-Secured Put trade to ensure diversification. Limiting the trade size will help you avoid big losses if the stock price crashes.

For example, suppose the strike price of a stock is ₹100, and you decide to buy 100 shares of the stock. Your broker will check whether you have ₹10,000 in your account and freeze it so that you can buy the shares if the stock reaches the strike price.

3. Calculate Net Price

Pricing is an integral part of the CSP strategy as it determines your entry cost and the maximum profit you can make. Additionally, a good pricing strategy will help you earn more money. If you are wondering “what is net price?”, it is calculated by deducting the strike price from the amount you made by selling an option.

For example, imagine you sell a ₹500 put on Tata Motors stock and collect ₹50 in premium. If the stock falls below ₹500, your net price for each share will be ₹450, which represents a good stock value.

You can follow the strategies mentioned above or use specialised derivatives platforms like FnO 360 created by 5paisa to execute a cash-secured put strategy.

What are the Risks Involved with Cash Secured Puts?

The common risks involved in CSP are a stock price dropping sharply, opportunity cost and volatility impact. Knowing the cash-secured put risks in detail might save investors from facing huge losses if a stock’s price falls far below the net purchase price.

1. Sudden Drop in Stock

There are a few instances when the price of a stock falls far below the chosen strike price. Such being the scenario, you are obligated to buy the specified shares at the strike price. Though you will receive the premium as a bonus, it might not be of much help. The results are immediate and can lead to large financial losses. 

2. Capital Tied Up

Once you decide the strike price of a stock, your broker might check whether you have sufficient money in your account and freeze it. The objective is to ensure that you can buy the shares if the stock reaches the strike price. Your cash stays frozen, and you cannot invest the money as long as the contract is active.

3. Impact of Market Volatility

The value of an option contract is largely dependent on market changes and price swings. You have to pay more money to buy back your sold put if market volatility increases. Though you are not obliged to buy the stock yet, your investments will show a lower value on paper. Investors using a cash-secured put strategy might get stressed if the market drops suddenly.

Conclusion

The cash secured put is an excellent tool for investors aiming to generate passive income or acquire quality stocks at a discount. It balances income generation with capital protection, especially when applied to the best cash secured put stocks. While not without risks, careful implementation using the right cash secured put strategy may significantly improve portfolio returns over time.

Those who are just beginning their options journey with this investment strategy can choose 5paisa for specialised derivatives platforms and educational resources.

Disclaimer: Investment in securities market are subject to market risks, read all the related documents carefully before investing. For detailed disclaimer please Click here.

Frequently Asked Questions

Investors use them to earn premiums while waiting to buy stocks at lower prices. It’s a way to generate income and potentially acquire shares at a discount.

You sell a put option and reserve enough cash to buy the stock if required. If the stock remains above the strike price, you keep the premium.

In India, you need enough cash to buy the full lot of shares at the strike price. The exact amount depends on the strike price and lot size of the option.

Yes, it's one of the more beginner-friendly options strategies due to its defined risk and straightforward logic.

Yes, premiums from selling cash-secured puts are usually taxed as business income, based on your applicable tax slab.

The primary difference lies in how the trade is backed. When you sell a CSP, you lock up 100% of the cash needed to buy the shares if assigned. When you sell a naked put, you only post a fraction of the capital as margin, leaving you exposed to margin calls if the stock drops sharply. 

You can select the right strike price by considering strikes below visible support zones instead of chasing higher premiums.

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