Stock gain loss calculator

Stock Gain/Loss Calculator Whatever brokerage you use, they only track your possessions while holding shares, once you sell, you lose track of your history performance. This tool gives you a real picture of how you performed over the history, purely based on transactions. What is true cost basis? True cost basis is the net cost you have spent on a stock to own a certain amount of shares. Say you buy 10 shares of TSLA at $100, and sell 5 shares at $200, the true cost basis for the remaining 5 shares is 10x$100 - 5x$200 = $0, which means your true cost to own 5 shares TSLA is 0. * No registration needed * No need to access to brokerage account --------Version 1.1.3--------------- * Add button to clear all transactions at once --------Version 1.1.2--------------- * Add button to export transactions to csv