Covered calls to iron condors, Black-Scholes to the Section 1256 split. You type the prices, the page computes and draws the payoff, and no account is asked for.
| Calculator | What it answers |
|---|---|
| Covered call calculator | Shares you hold and a call you sell against them: the premium, the return if the stock is called away and if it does not move, the breakeven and the most it can make. |
| Cash-secured put calculator | A put sold with the cash to buy the shares set aside: the yield on that cash, annualised, the breakeven and the price you effectively pay if assigned. |
| Wheel strategy calculator | One full turn of the wheel: a put sold and assigned, then a call sold on the shares and called away. Total premium, the cost basis after each leg and the return on the cash it took. |
| Calculator | What it answers |
|---|---|
| Credit spread calculator | A vertical sold for a credit, with puts or calls: the credit, the most it can lose, the breakeven and the return on the capital at risk. |
| Debit spread calculator | A vertical bought for a debit, with calls or puts: the cost, the most it can make, the breakeven and the reward against the risk. |
| Iron condor calculator | A put credit spread and a call credit spread on the same expiry: the net credit, the profit zone between the breakevens, and the most it can lose. |
| Calculator | What it answers |
|---|---|
| Straddle and strangle calculator | A put and a call on the same expiry, bought or sold, at one strike or two: the cost, both breakevens, and how far the price has to move to reach them, in points and percent. |
| Calculator | What it answers |
|---|---|
| Collar calculator | Shares with a protective put below and a covered call above: the net cost of the options, the floor and the cap, the breakeven and the most it can make or lose. |
| Protective put calculator | Shares with a put bought under them: the cost of the protection, the floor it sets, the breakeven and the most the position can lose. |
| Calculator | What it answers |
|---|---|
| Option price and Greeks calculator | Black-Scholes with a dividend yield: the price of a European call or put, and its delta, gamma, theta, vega and rho, at the spot, volatility and rate you type. |
| Implied volatility calculator | The volatility that makes Black-Scholes return the option price you type, and the Greeks at that volatility. |
| Calculator | What it answers |
|---|---|
| Section 1256 vs equity options tax calculator | The same gain taxed two ways: as Section 1256 contracts, 60% long term and 40% short term whatever the holding period, and as equity options under the ordinary holding period rules. An estimate at the rates you type. |
| Section 1256 60/40 split calculator | The arithmetic of Form 6781: a Section 1256 result is 60% long term and 40% short term whatever the holding period. Type the year's aggregate, or the three boxes from a 1099-B, and see the split. |
| Calculator | What it answers |
|---|---|
| Win rate interval calculator: is your win rate real? | Type your wins and losses per trading day and get a 95% interval that counts days as the evidence, next to the one every other calculator prints. |