Enter a ticker to fetch the current price. Enter a strike price for option sizing. If strike is blank, the live price is used for collateral calculations.
Current Price:
Google Finance does not expose a stable public Worker-friendly quote API, so this app uses Yahoo and falls back to Stooq when needed.
Blank uses the fetched price.
Enter a ticker and click Get Price to size contracts for each account.
Using as the option pricing basis
Add an account in the sidebar to see contract capacity.
MAX CONTRACTS
Collateral
Price To Gain +1
Price To Lose 1
Cost Basis Calculator
Save ticker cost basis by account and reduce it using raw premium dollar inputs.
Create at least one account, then choose it here to save cost basis calculations.
Saved Calculations
No saved calculations for this account yet.
Enter original share cost, share count, and raw premium amounts. Positive premium lowers basis.
Current Price
Premium Inputs
Add one row per contract sale or premium adjustment.