What gets tracked per trade: ticker, strategy, strikes, expiration, IV rank at entry, thesis (one sentence), max risk in dollars, planned and actual exit, P&L, and a one-line post-mortem. Auto-imports from major brokers (TD Ameritrade, Tastyworks, Schwab, Fidelity) eliminate manual entry friction. Custom tags let you slice trades by setup type, market regime, or any other dimension you care about.
Reports surface patterns: which strategies have your highest win rate, which timeframes work best for you, where your fills slip relative to mid, and which biases show up most often in your behavior. A trader who keeps a journal for 100+ trades has documented self-knowledge that no broker statement can reproduce.