Calculator Inputs
Example Data Table
| Position | Strike | Premium | Expiry Stock | Contracts | Fees | Estimated Result | Breakeven |
|---|---|---|---|---|---|---|---|
| Long put | $50.00 | $2.50 | $42.00 | 2 | $8.00 | $1,092.00 profit | $47.46 |
| Short put | $40.00 | $1.20 | $44.00 | 1 | $3.00 | $117.00 profit | $38.83 |
| Long put | $95.00 | $4.00 | $80.00 | 3 | $12.00 | $3,288.00 profit | $90.96 |
Formula Used
Put intrinsic value per share: max(strike price - stock price at expiry, 0)
Long put profit: ((intrinsic value - premium) × contract multiplier × contracts) - fees
Short put profit: ((premium - intrinsic value) × contract multiplier × contracts) - fees
Long put breakeven: strike price - premium - fee per share
Short put breakeven: strike price - premium + fee per share
Fee per share: total fees ÷ (contracts × contract multiplier)
Return: profit or loss ÷ risk basis × 100
How to Use This Calculator
- Select long put if you bought the put. Select short put if you sold the put.
- Enter the current stock price, strike price, premium, and expected stock price at expiry.
- Add the number of contracts and the contract multiplier. Standard equity options often use 100.
- Enter total fees and commissions for a more realistic trade estimate.
- Set a low, high, and step value for the scenario table.
- Press the calculate button. Results appear above the form and below the header.
- Use the CSV or PDF button to save the calculated results.
Put Profit Calculator for Practical Planning
A put option gains value when the underlying price falls below the strike price. This calculator helps traders estimate that relationship before entering a position. It supports both long put and short put strategies. You can include contracts, contract size, premium, fees, and an expected price at expiry. The result shows total profit or loss, per share payoff, breakeven, maximum risk, and maximum reward.
Why Put Profit Matters
Put options are often used for downside speculation, portfolio hedging, or income generation. A long put buyer pays a premium for the right to sell at the strike. The buyer wants the stock price to move below breakeven. A short put seller receives premium and accepts assignment risk. The seller wants the stock to stay above the strike or above breakeven.
A simple price forecast can miss important costs. Brokerage fees, contract multipliers, and the number of contracts can change the final outcome. This tool converts every input into a total trade view. It also builds a scenario table across many expiry prices. That table helps users see where losses start, where gains improve, and how quickly the payoff changes.
Advanced Use Cases
For hedging, enter your expected worst case stock price. Review the long put profit and compare it with losses in the protected shares. For income trades, choose short put mode and study the maximum loss, breakeven, and return on risk. For trade review, adjust the fee field and test several premiums. Small premium changes can shift breakeven and risk reward.
The calculator is designed for expiry payoff analysis. Real market prices before expiry may also depend on implied volatility, time value, dividends, liquidity, and interest rates. Use the results as structured estimates, not as a promise of market execution. Always compare the output with your trading plan, position size, and risk limits before opening or closing an options trade.
Reading the Scenario Table
Start with the breakeven row, then compare prices above and below it. For a long put, lower prices usually improve the result. For a short put, lower prices increase loss. The table also makes contract scaling easier because every row already includes multiplier and fee effects. Use conservative assumptions carefully.
FAQs
What is a put profit calculator?
It estimates profit or loss for a put option. It uses strike price, premium, contracts, multiplier, fees, and stock price at expiry to show payoff and breakeven.
Does this calculator support short puts?
Yes. Select short put sell in the position field. The calculator then treats premium as received and measures risk from falling stock prices.
What is put intrinsic value?
Put intrinsic value is the amount the strike price exceeds the stock price. If the stock price is above the strike, intrinsic value is zero.
Why are fees included?
Fees reduce real trade results. Including them gives a cleaner breakeven, total profit, and return estimate for both long and short put positions.
What does contract multiplier mean?
The multiplier converts option price per share into contract value. Many standard equity option contracts use 100 shares, but other products may differ.
Can I use this before expiry?
You can use it for planning. However, prices before expiry may include time value and volatility effects, so live option quotes can differ.
What is the breakeven for a long put?
The basic long put breakeven is strike price minus premium. This calculator also adjusts for total fees by converting fees into a per share cost.
Is this financial advice?
No. It is an educational planning tool. Always review market risk, liquidity, assignment rules, taxes, and your own trading plan before acting.