指标通过价格波动、成交量结构与多周期动量，综合判断主力资金是否正在低位吸筹或启动拉升。当股价处于相对低位、出现缩量企稳且主力资金线由负转正并上穿其均线时，系统标记为“主力掘金”信号，提示潜在的启动机会；同时结合地量和超卖状态辅助确认底部区域。操作上可在信号初现时分批布局，配合主力持仓强度和趋势过滤，适合中短线捕捉主力介入初期的个股。
{主力掘金--副图}
HG1:=REF((LOW+OPEN+CLOSE+HIGH)/4,1);
HG2:=SMA(ABS(LOW-HG1),13,1)/SMA(MAX(LOW-HG1,0),10,1);
HG3:=EMA(HG2,10);
HG4:=LLV(LOW,33);
HG5:=EMA(IF(LOW<=HG4,HG3,0),3);
主力进场:IF(HG5>REF(HG5,1),HG5,0),COLOR0000FF,NODRAW;
STICKLINE(HG5>REF(HG5,1),0,HG5,3,0 ),COLOR000055;
STICKLINE(HG5>REF(HG5,1),0,HG5,2.6,0 ),COLOR000077;
STICKLINE(HG5>REF(HG5,1),0,HG5,2.1,0 ),COLOR000099;
STICKLINE(HG5>REF(HG5,1),0,HG5,1.5,0 ),COLOR0000BB;
STICKLINE(HG5>REF(HG5,1),0,HG5,0.9,0 ),COLOR0000DD;
STICKLINE(HG5>REF(HG5,1),0,HG5,0.3,0 ),COLOR0000FF;
拉升:IF(HG5<REF(HG5,1),HG5,0),COLORGREEN,NODRAW;
STICKLINE(HG5<REF(HG5,1),0,HG5,3,0),COLOR005500;
STICKLINE(HG5<REF(HG5,1),0,HG5,2.6,0),COLOR007700;
STICKLINE(HG5<REF(HG5,1),0,HG5,2.1,0),COLOR009900;
STICKLINE(HG5<REF(HG5,1),0,HG5,1.5,0),COLOR00BB00;
STICKLINE(HG5<REF(HG5,1),0,HG5,0.9,0),COLOR00DD00;
STICKLINE(HG5<REF(HG5,1),0,HG5,0.3,0),COLOR00FF00;
地量:DRAWTEXT(CROSS(0.9,1/VOL*1000>0.01 AND "KDJ.J"<0),L*1,''),COLOR00FFFF;
STICKLINE(地量>0,0,30,2,0),COLOR008888;
STICKLINE(地量>0,0,30,1.5,0),COLOR00AAAA;
STICKLINE(地量>0,0,30,0.8,0),COLOR00DDDD;
STICKLINE(地量>0,0,30,0.3,0),COLOR00FFFF;
AA:=VOL/((H-L)*2-ABS(C-O));
HG6:=IF(C>O,AA*(H-L),IF(C<O,AA*((H-O)+(C-L)),VOL /2));
成交量比%:HG6/VOL*100,NODRAW;
主力持仓:EMA(100*(CLOSE-LLV(LOW,34))/(HHV(HIGH,34)-LLV(LOW,34)),3),NODRAW;
HG7:=C>MA(C,60);
HG8:=SMA(MAX(CLOSE-REF(C,1),0),6,1)/SMA(ABS(CLOSE-REF(C,1)),6,1)*100;
HG9:=C-REF(C,1);
DRAWICON(CROSS(82,HG8),10,15);
主力线:100*EMA(EMA(HG9,9),9)/EMA(EMA(ABS(HG9),9),9),COLOR00FFFF,LINETHICK2;
HG10:=MA(主力线,5),COLOR0000FF,LINETHICK2;
IF(主力线<REF(主力线,1),主力线,DRAWNULL),COLOR00FF00,LINETHICK2;
IF(主力线>REF(主力线,1),主力线,DRAWNULL),COLOR0000FF,LINETHICK2;
0 COLORCYAN DOTLINE;
主力掘金:BARSLASTCOUNT(主力线>0 AND HG10>0)=1 AND HG7,NODRAW;
STICKLINE(主力掘金,0,主力线,1,0 ),COLORFF00FF;
DRAWICON(主力掘金,主力线,5);
DRAWTEXT(主力掘金,主力线*1,' ★主力掘金'),COLORFF00FF;
DRAWTEXT(CROSS(0.9,1/VOL*1000>0.01 AND "KDJ.J"<0),L*1,' 地量'),COLORWHITE;
DRAWICON(CROSS(HG10,主力线),HG10,2);
