Trading Simulator
See the risk premium your trade creates for the LP.
Model & sources
Hypothetical quotes use Callput's size-dependent pricing logic with a fixed snapshot clock. Quotes use projected LP Greeks and utilization for the final order size. Mark is separate from the bid–ask midpoint. Gamma changes exposure analysis but does not directly enter the risk premium.
Buy budget includes premium and an assumed opening fee. Sell budget covers collateral and the same assumed fee; received premium is not reinvested. Scenario returns are mark valuations before expiry and settlement estimates at expiry. Future execution prices, exit fees, gas and USDC/USD deviations are excluded.
Vertical spreads use strike-width collateral for sells. Both legs share the same expiry and quantity. Scenario spread values are bounded between zero and strike width. No orders are placed.
Risk premium · Cost of LP risk
Session assumption —Adjustment to mark / unit
—How the quote is calculated —
Ask = Mark × (1 + Buy RP). Bid = max(Mark × (1 − Sell RP), 0).
Both sides use the same quantity and starting LP. Each RP already reflects that side's projected LP after the order; it is applied once to the full order.
Trade → LP impact
Buy · SPY| LP state | Before | Change | After trade |
|---|---|---|---|
| Select a contract to calculate LP exposure. | |||
RP calculation details
RP from this projected LP
—
Calculation notes
Delta, vega and theta feed RP. Gamma is exposure only. Capital changes use the native model's mark-premium accounting.
Spread payoff
USDSPY at expiry · USD
Charts & scenario comparison Price · Returns
SPY · Price & strike
Scenario returns
At expiry| SPY | Move | P&L | ROI |
|---|---|---|---|
| Select a contract to explore returns. | |||
Uses the selected time and IV.