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Options workspace

Custom Multi-Leg Strategy Builder

Build a position leg by leg. Every option keeps its own expiration, strike, premium, quantity, and direction; calculations stay in your browser.

Interactive position

Build the legs

Position structure—

Model: earliest-expiry valuation · expired legs use intrinsic value · every live leg retains Black–Scholes value using its own DTE and IV · 1 contract = 100 shares.

Position blueprints

Pre-built positions

Loads editable legs
Maximum profit—
Maximum loss—
Reward / risk—
Break-even price—
Position analyticsEarliest-expiry P&L
Valuation curveCurrent spot
X: underlying price at valuation · Y: profit / lossPer complete position · standard 100× option multiplier

How valuation works

Same-expiry positions show exact expiration limits and break-even prices. Mixed-expiry positions are valued at the earliest option expiry, with every later-dated leg retaining theoretical time value.