Do you need 100 shares to sell a put?

Asked by: Roberta Ortiz  |  Last update: June 28, 2026
Score: 4.5/5 (58 votes)

No, you don't need to own 100 shares to sell a put option, but you must have the cash (or margin) to buy 100 shares at the strike price if assigned, as each contract obligates you to purchase 100 shares if the buyer exercises it; selling puts without owning stock is called selling "naked puts" and requires significant collateral, whereas selling "cash-secured puts" means you have the funds ready to buy the shares.

How much do you need to sell puts?

How much money do you need to sell puts? For each put contract you sell, you need enough cash to purchase 100 shares of the stock at the strike price. If you sold 1 contract of a stock at the $50 strike, you need $5,000 in cash available.

Do I have to have 100 shares of a certain stock to sell covered calls?

Writing a covered call means you're selling someone else the right to purchase a stock that you already own, at a specific price, within a specified time frame. Because one option contract usually represents 100 shares, to run this strategy, you must own at least 100 shares for every call contract you plan to sell.

Do options have to be 100 shares?

In most cases, stock options contracts are for 100 shares of the underlying stock. You can have one contract or many, but fractional contracts are not traded. An option contract is defined by the following elements: Type (Put or Call)

What is your obligation if you sell a put?

With a naked put, you're selling the right to sell a stock at the strike price until the option expires. This means that, if the stock price falls, you are obligated to buy the stock at the specified strike price, regardless of its current price.

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15 related questions found

Can I sell puts if I have 100 shares?

Although selling a put against 100 short shares to form a covered put position can potentially generate interim income or potentially offset any dividends or carrying costs owed from a short stock position, this strategy has unlimited risk as you are holding a short stock position.

What is the 90-90-90 rule for traders?

The 90/90/90 rule in trading is a harsh statistic stating 90% of new traders lose 90% of their money in the first 90 days, highlighting the high failure rate due to poor risk management, emotional decisions, lack of a trading plan, and unrealistic expectations, often fueled by social media hype. To beat this, new traders must focus on discipline, learning fundamentals, creating a robust plan with stop-losses, and managing risk, treating trading as a long-term profession rather than a get-rich-quick scheme, say experts on LinkedIn and GoPocket.
 

How many shares do I need to sell options?

If the call is ITM—below the stock's current price—on or before expiration, the likelihood that the option buyer will exercise their right to buy the underlying at the strike price increases. If this happens, the covered call seller is required to deliver the stock—100 shares for each options contract sold.

What is the 7% sell rule?

The 7% sell rule is a stock trading guideline to cut losses quickly, advising you to sell a stock if it drops 7-8% below your purchase price to protect capital, remove emotion, and prevent small losses from becoming catastrophic, a strategy popularized by William O'Neil's CAN SLIM method for growth investing. It assumes that truly strong stocks typically don't fall much below their buy point, so a dip signals something is wrong, requiring you to exit the trade to preserve funds for better opportunities.
 

What does it mean to have 100 shares?

An investor buys shares of stock in a company. The stock represents the company, and is sold in units called shares. Thus, an investor can own a certain number of shares of a company's stock: e.g., they might own 100 shares of Company A. But it's incorrect to say an investor owns 100 stocks in Company A.

Can you sell puts without owning the stock?

Put owners don't have to own the physical asset to secure the right to sell it if they exercise the option, which limits their monetary risk. Many people just trade the put contract itself though, and don't end up taking shares at expiration.

What is the 3 5 7 rule in trading?

The 3-5-7 rule in trading is a risk management guideline: risk no more than 3% of capital on one trade, keep total risk across all trades under 5%, and aim for winning trades to be at least 7% larger than losing trades (or a 7:1 ratio) to ensure profits outweigh losses and protect capital. It promotes discipline, reduces emotional trading, and balances potential high rewards with controlled risk, making it great for beginners. 

Does Warren Buffett use covered calls?

Yes, Warren Buffett does sell covered calls, often as part of a strategy to generate income or facilitate selling positions, though he's more famous for selling cash-secured puts to buy stocks he wants at lower prices, effectively using options to enhance returns and manage his cash flow. He collects premium from selling covered calls on stocks he already owns, giving up some upside potential in exchange for immediate income, and if the stock price rises, his shares get called away at the strike price, increasing his cash.

How risky is selling a put option?

The main risk of put selling is that you could be forced to spend a bunch of money buying a stock for more than its market price — although we'll see in a moment how that isn't necessarily an unwanted outcome for all traders.

What are the common mistakes in selling puts?

Overlooking implied volatility is a significant mistake in call and put option trading, leading to potential drawbacks: Ignoring implied volatility misguides traders, affecting option pricing due to its direct correlation with future volatility expectations.

How much stock can I sell without paying taxes?

A capital gains rate of 0% applies if your taxable income is less than or equal to: $48,350 for single and married filing separately; $96,700 for married filing jointly and qualifying surviving spouse; and. $64,750 for head of household.

Do I need 100 shares to sell puts?

Each contract represents 100 shares of the underlying stock. Investors don't have to own the underlying stock to buy or sell a put. A reminder: Just like call options, put options are considered derivatives because their value is derived from another security (e.g., stock, bonds, index or currency).

What is the 90-90-90 rule for traders?

The 90/90/90 rule in trading is a harsh statistic stating 90% of new traders lose 90% of their money in the first 90 days, highlighting the high failure rate due to poor risk management, emotional decisions, lack of a trading plan, and unrealistic expectations, often fueled by social media hype. To beat this, new traders must focus on discipline, learning fundamentals, creating a robust plan with stop-losses, and managing risk, treating trading as a long-term profession rather than a get-rich-quick scheme, say experts on LinkedIn and GoPocket.
 

What is Warren Buffett's 90 10 strategy?

Invest 90% of your liquid assets in a low-cost S&P 500 index fund (Buffett recommended Vanguard's). Buffett argues that stocks will continue to provide higher returns over the long run than bonds or cash. Invest the remaining 10% in short-term government bonds such as U.S. Treasury bills.