1/ Opstra by @Definedge: - Best Strategy Builder - Options Portfolio feature to track and analyze trades I use this extensively whether it is to check the returns of a strategy or its breakevens. Go to tool for traders, number 1 on my list. (http://opstra.definedge.com)

2/ Icharts by @iChartsIndia - Historical options Data - Decipher Open Interest - Monitor Straddle/Strangle Premiums Best value for money tool. I use Icharts for Open Interest and Change in OI mainly. Most people use it for backtesting options data. (https://www.icharts.in/opt)

3/ @tradingview Easily the best charting platform. Haven't opened a single broker's chart since then. Multiple hacks to get its premium features for free in the thread below. Let's dive in ↓ (http://tradingview.com) https://x.com/AdityaTodmal/sta...

4/ @ZerodhaVarsity Collection of stock market and financial lessons. The value is worth more than 50k minimum. Can increase knowledge on just about everything in trading including: - Technical Analysis - Fundamentals - Options Strategies - Futures (http://zerodha.com/varsity/)

5/ Chartink by @ChartinkConnect Best screener website. Free scanners are available to use during live markets. Can also check charts with different indicators. (http://chartink.com)

6/ @Investingcom This is what traders use to determine and check upcoming events in the global markets or about particular stocks. It was once the number 1 most used website for traders, but its popularity has slowly decreased. Still pretty useful. (http://investing.com)

7/ @BeSensibull Allows you to log in from your broking account into sensibull. Then can check your position's payoff for free. The biggest competitor for opstra but Sensibull is number #2 for me in that race. (http://sensibull.com)

8/ @quantsapp Tracks data like: - Futures Built-up - Option chain - Overall market breadth - Options data (http://web.quantsapp.com)

If you enjoyed this thread here's another one: https://x.com/AdityaTodmal/sta...