Put Option Profit Calculator

Calculate the profit, loss, and break-even for your put option position. Works for both long puts and cash-secured puts.

SC
Written by Sarah Chen, CFP
Certified Financial Planner
JW
Fact-checked by Dr. James Wilson, PhD
Options Strategy Researcher
Profit & LossFact-Checked

Input Values

$

Strike price of the put option.

$

Premium paid (long) or received (short) per share.

$

Expected stock price at expiration.

Number of put contracts.

Whether you bought or sold the put.

Results

Profit / Loss
$0.00
Return on Investment
0.00%
Break-Even Price$0.00
Maximum Profit$7,500.00
Maximum Loss$0.00
Results update automatically as you change input values.

How Put Option Profits Work

A put option gives the holder the right to sell shares at the strike price. Long puts profit when the stock falls below the strike price minus the premium paid. Short puts (selling puts) profit when the stock stays above the strike price, allowing the seller to keep the premium.

Put options are used for bearish speculation (buying puts), hedging existing long positions (protective puts), and generating income on stocks you would like to own at lower prices (cash-secured puts).

Long Put P&L
P&L = (Strike Price - Stock Price - Premium) × 100 × Contracts
Where:
Strike Price = Put option strike
Stock Price = Price at expiration
Premium = Premium paid per share
Short Put P&L
P&L = (Premium - max(Strike - Stock Price, 0)) × 100 × Contracts
Where:
Premium = Premium received per share
Strike = Put strike price
Stock Price = Price at expiration
Long Put Profit Example
Given
Strike
$75
Premium
$4.00
Stock at Expiry
$62
Contracts
2
Calculation Steps
  1. 1Intrinsic Value = max($75 - $62, 0) = $13
  2. 2P&L per share = $13 - $4 = $9
  3. 3Total P&L = $9 × 100 × 2 = $1,800
  4. 4ROI = $1,800 / ($4 × 200) = 225%
  5. 5Break-even = $75 - $4 = $71
  6. 6Max Profit = ($75 - $0 - $4) × 200 = $14,200 (if stock goes to $0)
  7. 7Max Loss = $4 × 200 = $800 (premium paid)
Result
The long put generates $1,800 profit (225% ROI) with the stock at $62. Break-even is $71. Max loss is limited to the $800 premium.

Put Option Profit Scenarios

Long Put P&L at Various Prices ($75 Strike, $4 Premium, 2 Contracts)
Stock PriceIntrinsic ValueP&L per ShareTotal P&LROI
$80$0-$4.00-$800-100%
$75$0-$4.00-$800-100%
$71$4+$0.00$00%
$65$10+$6.00+$1,200+150%
$62$13+$9.00+$1,800+225%
$55$20+$16.00+$3,200+400%
$50$25+$21.00+$4,200+525%

Choosing the Right Put Option

1
Define Your Bearish Thesis
How much do you expect the stock to decline? A moderate decline (5-10%) favors ATM puts. A large decline (20%+) favors OTM puts for leverage.
2
Select Strike and Expiration
ATM puts have higher delta (more responsive to price moves) but cost more. OTM puts are cheaper but need a larger move. Give yourself enough time for the move to happen.
3
Check Implied Volatility
High IV means expensive puts. Consider bear put spreads to reduce cost when IV is elevated.
4
Size Your Position
Limit risk to 2-5% of portfolio. Puts can expire worthless, so size accordingly.
  • Protective puts act as portfolio insurance against stock declines
  • Cash-secured puts let you get paid to wait to buy a stock at a lower price
  • Put spreads (buying one put, selling a lower-strike put) reduce cost but cap profit
  • Put-call parity links put prices to call prices and the underlying stock price
  • Exercise of puts results in selling shares at the strike price
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Cash-Secured Put Strategy

Selling puts on stocks you want to own is a popular income strategy. If the stock stays above the strike, you keep the premium. If it falls below, you buy shares at the strike minus premium, which is your effective purchase price. It is like getting paid to place a limit order.

Frequently Asked Questions

Long Put Profit = (Strike - Stock Price - Premium) × 100 × Contracts. Example: $75 put bought at $4, stock at $62: ($75-$62-$4)×200 = $1,800. The stock must fall below $71 (strike minus premium) for the put to be profitable at expiration.

Sources & References

  • U.S. Securities and Exchange Commission (SEC) - Investor Education
  • Options Clearing Corporation (OCC) - Options Education
  • Chicago Board Options Exchange (CBOE) - Options Strategies
  • Hull, J.C. "Options, Futures, and Other Derivatives" (11th Edition, 2021)

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