通达信MACD三全指标（MACD类）指标公式

买卖信号

1. **低位金叉**：DIFF与DEA在低位（DIFF<-0.1）形成金叉，买入信号 2. **二次金叉**：DIFF与DEA在零轴下方形成第二次金叉，买入信号 3. **底背离**：股价创新低但DIFF未创新低，形成底背离，买入信号 4. **顶背离**：股价创新高但DIFF未创新高，形成顶背离，卖出信号 5. **三全项**：低位金叉、二次金叉、底背离三个信号同时出现，强烈买入信号

用法

本指标为MACD指标的优化版本，增加了多个辅助买入信号。适用于中长线趋势判断，在震荡行情中需谨慎使用。低位金叉和二次金叉适用于捕捉下跌后的反弹机会；底背离是较为可靠的买入信号；顶背离出现时需注意风险。建议结合成交量和其他技术指标综合判断，避免在横盘整理行情中使用。

公式源码

DIFF:EMA(CLOSE,12)-EMA(CLOSE,26);
DEA:EMA(DIFF,9);
macd:2*(DIFF-DEA), COLORSTICK,LINETHICK2;
低位金叉:=crOSS(DIFF,DEA) AND DIFF<-0.1;
STICKLINE(低位金叉,0,0.08,6,0),COLORYELLOW;
DRAWTEXT(低位金叉,0.16,' 低位金叉'),COLORWHITE;
JCCOUNT:=COUNT(CROSS(DIFF,DEA),BARSLAST(DEA>=0));
二次金叉:=CROSS(DIFF,DEA) AND DEA<0 AND COUNT(JCCOUNT=2,21)=1;
STICKLINE(二次金叉,0,0.06,6,0),COLORFF00FF;
DRAWICON(二次金叉,DEA*0.9,1) ;
DRAWTEXT(二次金叉,0.2,' 二次金叉'),COLORYELLOW;
A1:=BARSLAST(REF(CROSS(DIFF,DEA),1));
底背离:=REF(CLOSE,A1+1)>CLOSE AND DIFF>REF(DIFF,A1+1) AND CROSS(DIFF,DEA);
STICKLINE(底背离,0,0.03,6,0),COLOR00FF00;
底背:DRAWLINE(A1=0,DEA,底背离,DEA,0),COLORRED,LINETHICK4;
DRAWTEXT(底背离,0.12,' 底背离'),COLORFF00FF;
A2:=BARSLAST(REF(CROSS(DEA,DIFF),1));
顶背离:=REF(CLOSE,A2+1)<CLOSE AND REF(DIFF,A2+1)>DIFF AND CROSS(DEA,DIFF);
顶背:DRAWLINE(A2=0,DEA,顶背离,DEA,0),COLORGREEN,LINETHICK4;
DRAWTEXT(低位金叉 AND 二次金叉 AND 底背离,0.25,'三全项'),COLOR0000FF,LINETHICK2;