Portfolio What-If Calculator
Paste your portfolio trades, then edit what-if prices for any stock to see how the full portfolio value changes.
Load portfolio to see totals.
| Symbol | Qty | Buy Price | Current Price | What-If Price | Cost Basis | What-If Value | P/L | Return % |
|---|
| Underlying | Type | Expiry | Strike | Contracts | Premium | Contract Size | Underlying What-If | Value at Expiry | Cost Basis | Option P/L |
|---|
About This Tool
The Portfolio What-If Calculator lets you paste multiple holdings in one go and model different price scenarios quickly.
Change the What-If Price in any row and the portfolio totals update instantly so you can compare best-case and worst-case outcomes.
How to use: add stock rows as Symbol, Quantity, Buy Price, Current Price (optional). Add options rows like MSFT,CALL,2026-06-20,430 with optional contracts, premium, and contract size.
Note: this is an estimate for planning and does not include taxes, brokerage, slippage, or corporate actions.