Why Option Price or P&L Differs From OptiView
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Why does my broker show a different option price or P&L than OptiView?

A broker can show a different option price, Greeks, or profit and loss than OptiView because the two platforms may use different data timing, mark methods, and pricing assumptions.

Common reasons for differences

  • OptiView may use 15-minute delayed market data while the broker uses real-time data
  • A broker may value an option using bid, ask, mark, last trade, or a proprietary midpoint rule
  • Profit and loss may differ because one platform includes fees, commissions, or position carry while the other does not
  • Theoretical option value can differ when implied volatility, interest rate, or dividend assumptions are not the same

What can differ besides price

  • Greeks can change when volatility inputs, rate assumptions, or pricing models differ
  • Multi-leg strategy value can differ if legs are marked independently instead of as a package
  • Unrealized P&L can differ if the broker uses execution price history while OptiView focuses on current analytical valuation

How to interpret the difference

  • Use OptiView for options strategy analysis, payoff visualization, and scenario testing
  • Use the broker for executable quotes, account buying power, and official position valuation
  • Check whether both platforms are using the same timestamp, contract, and valuation method before assuming one value is wrong

Related Questions

Charting
What is the difference between delayed data and real-time broker data?OptiView provides either 15-minute delayed market data or real-time broker data, depending on whether a brokerage account is connected. Delayed data is available to all users, while real-time data is provided by a connected broker.
Charting
What pricing model does OptiView use for options pricing?OptiView calculates theoretical option prices using established option pricing models such as Black-Scholes. OptiView uses market-derived inputs including implied volatility, interest rates, dividend yield, and the bid-ask spread.
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What does options P&L visualization show?Options P&L visualization shows how an options strategy performs across different underlying prices over time. OptiView displays projected profit and loss, allowing users to evaluate payoff, risk, and breakeven points before expiration.