Custom Trading Terminal

About the Project

This is a custom-built trading terminal that I developed as a Next.js web application. The terminal runs locally on my machine and provides real-time market data, analysis and visualizations. I chose to build this using this framework for the user interface because it was easier to impliment than a custom interface and I could easily allow other people to use whil having very little downside.

Key Features

Put & call option pricing for any stock/ETF
Filter for best valued put/call according to model used
Filter for best value call to sell in a covered call stratedgy
Adjusted 'volatility graph', gives similar information to a volatilty surface in 2D format

Option Pricing — This page outputs the theoretical price of a given put or call contract. The price is calculated using historical and realtime stock data, a modified ARIMA model for volatilty forecast and a modified Black-Scholes model for the final calculation. These functions are the base for all of the other features of the terminal, this model doesn't factor in news, fundamental analysis or even the fat-tailed returns distribution that many stocks have.

Long Call Dashboard — This feature uses the models from the option calculator along with realtime data of the option chain snapshot from a given ticker. It outputs the 10 most undervalued ask prices for each call option by percentage valuation discrepancy. Forecasted volatility is calculated separately for each unique expiration, factoring in both momentum and mean reversion.

Visualization — Each green dot represents a unique call option contract quoted on the most recent option chain snapshot. This visualization is useful to get a birdseye view of a given tickers option chain, it offers less information than a typical volatility surfice but it does factor in different vol forecasts for different expirations. I mostly use this to screen for outliers or a general trend of lower/higher valuation which would indicate that the market could be influence by news or other expectations of somekind.

Covered Calls — This feature also uses the models from the option calculator along with realtime data of the option chain snapshot from a given ticker. It outputs the 10 most overvalued call contracts by bid price and ranks them by flat, annualized discrepancy expressed as a percentage of the underlying spot price. I typically use this feature to identify opportunities to enter a fully covered call position(net +delta).