通达信DDX成交K线指标（资金型）指标公式

买卖信号

1. **买入信号**：DRAWTEXT(cross(V2,REF(V2,1)*1.2) AND LONGCROSS(CLOSE,REF(C,1)*1.025,4) AND DDX/REF(MA(DDX,5),1)>2,REF(V2,1),'★') - 条件：V2上穿REF(V2,1)*1.2 AND 收盘价连续4天保持在REF(C,1)*1.025之上 AND DDX/5日DDX均值>2 - 显示：紫红色★符号 2. **DDX红绿柱**：当日DDX大于0显示紫红色柱子，小于0显示浅绿色柱子

用法

1. **适用场景**：本指标为资金流向型指标，通过计算涨跌时成交量的分配来反映主力资金动向 2. **核心原理**： - DDX计算净流入：(QJ1+QJ2)-(QJ3+QJ4)，反映当日主力资金净流入/流出 - V2对DDX进行平滑处理，并区分涨跌情况 - V5/V10/V20是对V2的进一步平滑，形成短期、中期、长期趋势线 3. **注意事项**： - 买入信号需要满足三个条件同时成立：V2快速上升、股价强势站稳、DDX放大倍数足够 - 该指标结合了资金面和价格走势，适合判断主力建仓或拉升阶段 - 适用于中短线交易，可配合其他趋势指标使用

公式源码

DRAWGBK(C>O,RGB(60,0,0),RGB(0,0,0),1,2,1);
N:=5;
JJ:=(HIGH+LOW+CLOSE)/3;
QJ0:=vol/IF(HIGH=LOW,4,HIGH-LOW);
QJ1:=IF(CAPITAL=0,QJ0*(JJ-MIN(CLOSE,OPEN)),QJ0*IF(HIGH=LOW,1,(MIN(OPEN,CLOSE)-LOW)));
QJ2:=IF(CAPITAL=0,QJ0*(MIN(OPEN,CLOSE)-LOW),QJ0*IF(HIGH=LOW,1,(JJ-MIN(CLOSE,OPEN))));
QJ3:=IF(CAPITAL=0,QJ0*(HIGH-MAX(OPEN,CLOSE)),QJ0*IF(HIGH=LOW,1,(HIGH-MAX(OPEN,CLOSE))));
QJ4:=IF(CAPITAL=0,QJ0*(MAX(CLOSE,OPEN)-JJ),QJ0*IF(HIGH=LOW,1,(MAX(CLOSE,OPEN)-JJ)));
ddx:((QJ1+QJ2)-(QJ3+QJ4))/IF(CAPITAL=0,1000000,10000),COLOR00AAAA,LINETHICK;
V2:=SMA(IF(C>=REF(C,1),DDX,-DDX/100),2,1);
V5:SMA(V2*240/FROMOPEN*0.9,5,1);
V10:SMA(V5,5,1);
V20:SMA(V10,5,1);
DRAWKLINE(V2*1.01,REF(V2,1),REF(V2,1)*0.99,V2);
当日DDX:DDX,NODRAW;
STICKLINE(CURRBARSCOUNT=1 AND C>=REF(C,1),REF(V2,1),MAX(V2*0.98,V2*240/FROMOPEN*0.8),3,-1),COLORLIMAGENTA;
STICKLINE(CURRBARSCOUNT=1 AND C<REF(C,1),REF(V2,1),MIN(V2,V2*240/FROMOPEN*0.8),3,-1),COLORLIGREEN;
DRAWTEXT(crOSS(V2,REF(V2,1)*1.2) AND LONGCROSS(CLOSE,REF(C,1)*1.025,4) AND DDX/REF(MA(DDX,5),1)>2,REF(V2,1),'★'),COLORMAGENTA;