formula ID 220

{公式名称：回购增持策略}
{参数设置}
N:=60; {均线周期，判断价格是否处于低位}
M:=1.5; {成交量放大倍数，判断是否有资金介入}
P:=30; {PE阈值，过滤高估值公司}

{核心指标计算}
MA60:=MA(CLOSE,N); {60日收盘价均线}
VOL20:=MA(VOL,20); {20日成交量均线}
EPS:=FINANCE(26)/FINANCE(1); {每股收益=归属于母公司净利润/总股本}
PE_RATIO:=CLOSE/EPS; {动态市盈率}

{买入信号逻辑：价格低位+放量+低估值+趋势确认}
BUY_CONDITION:=CLOSE<MA60 AND VOL>VOL20*M AND PE_RATIO<P AND MACD.DIF>MACD.DEA;

{卖出信号逻辑：价格反弹+估值修复+趋势反转}
SELL_CONDITION:=CROSS(CLOSE,MA(CLOSE,20)) OR PE_RATIO>50 OR CROSS(MACD.DEA,MACD.DIF);

{信号输出}
BUY_SIGNAL:BUY_CONDITION;
SELL_SIGNAL:SELL_CONDITION;

{风险提示}
DRAWTEXT_FIX(ISLASTBAR,0,0,0,'本公式基于价格行为模拟回购增持信号，不构成投资建议'),COLORGRAY;

{Warmup标注：需要60周期数据初始化}
DRAWTEXT_FIX(ISLASTBAR AND BARPOS<N,0,1,0,'Warmup周期：60天'),COLORRED;