Selling put options is one of the most popular income strategies among options traders. When done correctly, it allows you to collect premium while potentially buying stocks you want to own at a discount. This guide explains everything you need to know about selling puts, from cash-secured puts to risk management techniques.
What Does Selling a Put Option Mean?
When you sell a put option, you give someone else the right to sell you 100 shares of a stock at a specific price (strike price) before a certain date (expiration). In exchange for taking on this obligation, you receive a premium payment immediately. Your goal is for the stock to stay above the strike price so the option expires worthless.
Key concept: Selling puts is a bullish to neutral strategy. You want the stock to stay flat or go up. If it drops below your strike price, you may be required to buy the shares.
Cash-Secured Puts vs Naked Puts
There are two approaches to selling puts:
Cash-Secured Puts (Recommended)
A cash-secured put means you have enough cash in your account to buy the shares if assigned:
- Requires cash equal to (Strike Price x 100) per contract
- Lower risk since you can afford the shares
- Great way to buy stocks you want at a discount
- Approved for most brokerage accounts
Naked Puts (Higher Risk)
Naked puts are sold without sufficient cash to cover assignment:
- Uses margin instead of cash collateral
- Higher risk if stock drops significantly
- Requires margin account with options approval
- Better for experienced traders only
Cash-Secured Put Example
You want to buy XYZ stock, currently trading at $50, but only if it drops to $45.
- You sell 1 put option with a $45 strike price
- Expiration: 30 days out
- Premium received: $1.00 per share ($100 total)
- Cash required: $4,500 (to buy 100 shares at $45 if assigned)
Scenario 1: XYZ stays above $45. Option expires worthless, you keep the $100 premium.
Scenario 2: XYZ drops to $40. You are assigned and buy 100 shares at $45. Your effective cost basis is $44 per share ($45 - $1 premium).
Why Traders Sell Put Options
Selling puts offers several advantages:
- Income generation: Collect premium whether you get assigned or not
- Buy at a discount: Get paid while waiting to buy stocks cheaper
- Time decay advantage: Theta works in your favor as the seller
- High win rate: Out-of-the-money puts often expire worthless
- Flexibility: Choose any strike price and expiration
Selecting the Right Strike Price
Your strike price choice determines your risk and reward:
- At-the-money (ATM): Highest premium but 50% chance of assignment
- Out-of-the-money (OTM): Lower premium but stock has room to drop
- Deep OTM: Very low premium but highest probability of profit
Delta as a Guide
Many traders use delta to select strikes:
- 0.30 delta: Approximately 30% chance of assignment, good premium
- 0.20 delta: Approximately 20% chance of assignment, lower premium
- 0.10 delta: Approximately 10% chance of assignment, minimal premium
Choosing Expiration Dates
The expiration date affects premium and management:
- Weekly options (7 days): Quick turnover but lower total premium
- 30-45 days out: Optimal time decay, most popular timeframe
- 60+ days out: Higher premium but capital tied up longer
Premium Comparison by Expiration
Stock at $100, selling $95 strike puts:
- 7-day expiration: $0.30 premium
- 30-day expiration: $1.20 premium
- 60-day expiration: $2.00 premium
The 30-45 day range often provides the best premium per day of risk.
Understanding Assignment
Assignment is when you are required to buy the shares:
- When it happens: Usually at expiration if the put is in-the-money
- Early assignment: Rare for puts, but can happen
- What to do: Keep the shares, sell a covered call, or sell the shares
Calculating Profit and Loss
Understanding your potential outcomes:
- Maximum profit: Premium received (if option expires worthless)
- Breakeven: Strike price minus premium received
- Maximum loss: (Strike price - Premium received) x 100 if stock goes to zero
P&L Calculation Example
You sell a $50 strike put for $2.00 premium.
- Maximum profit: $200 (if stock stays above $50)
- Breakeven: $48 ($50 - $2)
- If assigned at $50, stock drops to $45: Loss = ($50 - $45 - $2) x 100 = $300 unrealized loss
- Maximum loss: $4,800 (if stock goes to $0)
Managing Your Put Selling Positions
Active management improves results:
- Close at 50% profit: Buy back the put when it loses half its value
- Roll down: If stock drops, close and sell a lower strike
- Roll out: If expiration nears, extend to a further date
- Accept assignment: If you like the stock, take the shares
- Close for a loss: Cut losses if the trade moves significantly against you
The Wheel Strategy
Many traders combine selling puts with covered calls in a continuous cycle:
- Sell cash-secured puts on a stock you want to own
- If assigned, sell covered calls on the shares
- If shares get called away, start selling puts again
- Collect premium throughout the cycle
Risk Management for Put Sellers
Follow these guidelines to protect your capital:
- Only sell on stocks you want to own: Be happy if assigned
- Size positions appropriately: Never overcommit your capital
- Diversify strikes and expirations: Spread risk across multiple positions
- Avoid earnings: Volatility can cause unexpected moves
- Have an exit plan: Know when you will close or roll positions
Common Mistakes to Avoid
New put sellers often make these errors:
- Selling puts on bad stocks: Only sell on quality companies you would own
- Overallocating capital: Keep cash reserves for other opportunities
- Ignoring assignment: Have a plan for what to do with assigned shares
- Chasing premium: High premiums usually mean high risk
- Not managing losers: Cut losses before they become catastrophic
Tax Implications
Understand the tax treatment of put selling:
- Premium received is typically short-term capital gains
- If assigned, premium reduces your cost basis in the shares
- Consult a tax professional for your specific situation
Track Your Put Selling Performance
Pro Trader Dashboard automatically tracks all your options trades including cash-secured puts. Monitor your premium income, assignment rate, and overall strategy performance.
Summary
Selling put options is an excellent strategy for generating income and potentially buying stocks at a discount. By focusing on cash-secured puts, choosing quality stocks, and managing positions actively, you can build a consistent income stream from your options trading. Remember to only sell puts on stocks you would be happy to own and always maintain proper position sizing.
Continue learning with our cash-secured puts guide or explore the wheel strategy for a comprehensive income approach.