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Options trading tools

Each tool answers one question about an options trade. It shows the inputs, every step of the arithmetic, and what the result does not include.

Available tools

  • Options breakeven calculator with fees

    At what underlying price does my option trade return its full cost at expiry?

    Find the expiry breakeven of a long call or put. The cost includes opening and closing fees.

  • IBKR options trade CSV checker

    Can another tool import my IBKR options trade file without errors?

    Check an Interactive Brokers Flex Query trade export for missing fields, wrong values, and duplicate fills.

How these tools work

  • Every result shows the formula and the numbers that went into it.
  • Fees are inputs, because a small fee changes the result on a small trade.
  • The page address keeps your inputs, so you can save or share a calculation.
  • Each tool lists its limits next to the result.
  • The tools do arithmetic on your inputs. They do not give investment advice.

The tools are free and need no account.