自 2023 年至今，该指标仅筛选出 7 个案例，指标源码，大家可自行优化。
首板后次日高开收阴并伴随放量，随后股价持续下行直至破位，但关键在于破位周期极短，这种快速下跌使主力根本来不及完成出货，毕竟完整的做盘计划需要时间支撑。当出现长下影线时，意味着已触及阶段性低点，此时便是入场时机。此后股价通常会震荡上行，直至迎来主升浪。由于该指标触发信号稀少，建议大家设置预警，一旦出现信号即可参与，低位布局能将风险控制在极小范围内。
{ 主图源码如下}
SH:=CODELIKE('00') OR CODELIKE('60');
SZ:=CODELIKE('30') OR CODELIKE('68');
SS:=CODELIKE('4') OR CODELIKE('8');
X1:=IF(SH,0.1,IF(SZ,0.2,IF(SS,0.3,100)));
ZTA:=CODELIKE('30') AND DATE<1200824 AND C=H AND C/REF(C,1)>1.092;
ZT:=(C=H AND C>=ZTPRICE(REF(C,1),X1)) OR ZTA;
DT:=C-L<=0.01 AND IF(SH,C/REF(C,1)<0.91,IF(SZ,C/REF(C,1)<0.81,IF(SS,C/REF(C,1)<0.71,0)));
LBTS:=BARSLASTCOUNT(ZT);
ZF:=100*(C/REF(C,1)-1);
ZB:=C<H AND H>=ZTPRICE(REF(C,1),X1);
SYX:=100*(H-MAX(C,O))/REF(C,1);
ST:=100*ABS(C-O)/REF(C,1);
STY:=IF(C>O,ST,0);
XYX:=100*(MIN(C,O)-L)/REF(C,1);
QKS:=100*(L/REF(H,1)-1);
LF:=100*(L/REF(C,1)-1);
VS:=V>REF(V,1);
VJ:=V<REF(V,1);
BLY:=C>O AND V>2*REF(V,1);
JZF:=100*(O/REF(C,1)-1);
HJ:=H<REF(H,1);
OJ:=O<REF(O,1);
LJ:=L<REF(L,1);
CJ:=C<REF(C,1);
T1:=ZT AND COUNT(ZT,10)=1 AND L<REF(H,1) AND ST>6;
T2:=REF(T1,1) AND C<O AND VS AND JZF>-5 AND DT=0;
N1:=BARSLAST(T2);
T3:=XYX>5 AND EVERY(HJ AND OJ AND LJ,N1) AND C<REF(O,N1+1);
XG1:=T3 AND N1=1 AND O<REF(O,2) AND ST<5 AND REF(H=HHV(H,20),2);
XG2A:=REF(HHV(XYX,N1)<5,1) AND REF(JZF<9,N1) AND REF(ST<5,N1+2);
XG2:=T3 AND N1>1 AND IF(C<O,ST<0.5,C>O) AND REF(L,N1+1)/C>1.05 AND XG2A;
XGA:=XG1 OR XG2;
DRAWICON(XG1,L*0.98,1);
DRAWTEXT(T1,L*0.92,'首板'),COLORRED;
DRAWICON(T1,L*0.96,13);
DRAWTEXT(T2,L*0.90,'首板次日阴'),COLORGREEN;
DRAWTEXT(T3,L*0.88,'长下影'),COLORBLUE;
DRAWICON(T3,L*0.92,1);
STICKLINE(XG1 OR XG2,C,O,3,0),COLORRED;
STICKLINE(T1,C,O,3,0),COLORMAGENTA;
STICKLINE(T2,C,O,3,0),COLORGREEN;
STICKLINE(T3,C,O,3,0),COLORBLUE;
TREND:=MA(C,20);
TRENDUP:=TREND>REF(TREND,1) AND REF(TREND,1)>REF(TREND,2);
TRENDDOWN:=TREND<REF(TREND,1) AND REF(TREND,1)<REF(TREND,2);
{ 副图源码如下}
SH:=CODELIKE('00') OR CODELIKE('60');
SZ:=CODELIKE('30') OR CODELIKE('68');
SS:=CODELIKE('4') OR CODELIKE('8');
X1:=IF(SH,0.1,IF(SZ,0.2,IF(SS,0.3,100)));
ZTA:=CODELIKE('30') AND DATE<1200824 AND C=H AND C/REF(C,1)>1.092;
ZT:=(C=H AND C>=ZTPRICE(REF(C,1),X1)) OR ZTA;
DT:=C-L<=0.01 AND IF(SH,C/REF(C,1)<0.91,IF(SZ,C/REF(C,1)<0.81,IF(SS,C/REF(C,1)<0.71,0)));
LBTS:=BARSLASTCOUNT(ZT);
ZF:=100*(C/REF(C,1)-1);
ZB:=C<H AND H>=ZTPRICE(REF(C,1),X1);
SYX:=100*(H-MAX(C,O))/REF(C,1);
ST:=100*ABS(C-O)/REF(C,1);
STY:=IF(C>O,ST,0);
XYX:=100*(MIN(C,O)-L)/REF(C,1);
QKS:=100*(L/REF(H,1)-1);
LF:=100*(L/REF(C,1)-1);
VS:=V>REF(V,1);
VJ:=V<REF(V,1);
BLY:=C>O AND V>2*REF(V,1);
JZF:=100*(O/REF(C,1)-1);
HJ:=H<REF(H,1);
OJ:=O<REF(O,1);
LJ:=L<REF(L,1);
CJ:=C<REF(C,1);
T1:=ZT AND COUNT(ZT,10)=1 AND L<REF(H,1) AND ST>6;
T2:=REF(T1,1) AND C<O AND VS AND JZF>-5 AND DT=0;
N1:=BARSLAST(T2);
T3:=XYX>5 AND EVERY(HJ AND OJ AND LJ,N1) AND C<REF(O,N1+1);
XG1:=T3 AND N1=1 AND O<REF(O,2) AND ST<5 AND REF(H=HHV(H,20),2);
XG2A:=REF(HHV(XYX,N1)<5,1) AND REF(JZF<9,N1) AND REF(ST<5,N1+2);
XG2:=T3 AND N1>1 AND IF(C<O,ST<0.5,C>O) AND REF(L,N1+1)/C>1.05 AND XG2A;
XGA:XG1 OR XG2;
