下单前先算这笔最多亏多少、该买多少股,成交后记进台账,自动汇总胜率、盈亏比和期望值 —— 数据只在你本机 | Size the position before you buy, then log every fill: win rate, payoff ratio and exp
【中文】
交易台账 · 风控台 —— 一个页面解决两件事:买之前算清该买多少股,卖出之后看清自己到底打成什么样。
· 仓位计算:先定「这笔最多亏多少」(默认总资金的 1%),再按买入价和止损价反推能买多少股(A 股自动按 100 股一手取整)
· 算清真实成本:买卖两次佣金(含最低 5 元、可切免五)、卖出印花税一起算,告诉你这笔的真实占用资金和触发止损后的实际亏损
· 风险提示:单笔占用超过半个账户、止损距离过大或过小(A 股通常 3%–8%)、连一手都买不到,都会当场提醒
· 交易台账:每笔记名称、买卖日期与价格、股数,自动补手续费、盈亏金额、收益率和持有天数
· 复盘统计:胜率、平均盈利、平均亏损、盈亏比、期望值、最大单笔盈亏、最长连亏 —— 直接告诉你这套打法值不值得继续
· 数据在你手里:全部保存在浏览器本机(localStorage),可导出 JSON 备份,换手机时一键恢复
· 离线可用,可加到手机主屏(PWA),自动更新到最新版
· 只做算术和记账:不荐股、不预测涨跌、不下单、也不与任何券商合作;没有任何软件能保证炒股赚钱,这个工具能做的是把风险和纪律固定下来
· 专业版(一次购买):导出台账 CSV、无广告
【English】
Trade Journal — two jobs on one page: work out how many shares you can buy before you buy them, and see how you actually traded after you sell. Size the position from a fixed risk budget (1% of your account by default) using your entry and stop price, with A-share board lots rounded to 100 shares. It prices the full round trip — commission both ways (including the 5-yuan minimum, with a no-minimum switch) and stamp duty on the sell — so you see the capital a trade ties up and the real loss if the stop is hit. Warnings fire when a position would eat more than half the account, when the stop sits outside the usual 3%-8% band, or when the risk budget cannot even buy one lot. The journal then tracks every fill and derives your win rate, average win, average loss, payoff ratio, expectancy, biggest win and worst losing streak. Everything is stored locally in your browser with JSON backup and restore. Pure arithmetic and bookkeeping: no stock picks, no forecasts, no order placement, no broker affiliation. Pro adds CSV export and removes ads.