Trade Journal Analysis

Purpose

Users upload broker exports (交割单) and get an honest, data-grounded portrait of their own trading. Two layers are live:

• Profile — holding days, frequency, win rate, PnL ratio, cumulative PnL, max drawdown, top symbols, market/hourly distribution.
• Behavior diagnostics — 4 biases, each with severity (low/medium/high) and numeric evidence: disposition effect, overtrading, chasing momentum, anchoring.

Strategy extraction → backtest bridge lands in Phase 4c.

Supported formats (auto-detected):

• 同花顺 (Tonghuashun) — A-share CSV, typically GBK-encoded
• 东方财富 (Eastmoney) — A-share CSV, typically GBK-encoded
• 富途 (Futu) — HK/US CSV, UTF-8
• Generic — any CSV with columns like datetime/symbol/side/qty/price