Stock Only Calculator

Stock only is one hundred shares with no options. It is here as a baseline: every other position can be compared with simply owning the shares, and the comparison is often the most useful thing a profit grid shows. The line is straight, the loss is capped at the purchase price times the number of shares, and the gain is unlimited.

When it is used

Load it to see what a covered call gives up, what a married put costs, or how much less capital a long call needs for the same exposure. It is also the starting point for building any stock-plus-options position: add a leg from the Legs panel and the grid reshapes around the shares.

How it makes and loses money

The shares make and lose one dollar per share per dollar of stock movement, on every date, with no time decay and no sensitivity to implied volatility. That flat relationship is what the options in other positions trade away in exchange for leverage, income or protection.

What to check in the grid

Every column is identical, which is the point: time does nothing to shares. Compare the row at the current price with the same row in any option position to see the carrying cost of the options, and the extreme rows to see where options change the outcome.