【导语：那个改变我投资命运的深夜】
一、近期实战：这个信号如何预判北汽蓝谷30%涨幅？
二、指标原理：21日均线斜率的魔法方程式
趋势线 = EMA( (SLOPE(CLOSE,21)*20 + CLOSE) ,42 )
买卖线 = EMA(CLOSE,2)
Ψ信号 = CROSS(买卖线,趋势线) //紫色向上箭头
◎信号 = CROSS(趋势线,买卖线) //白色向下圆圈
三、避坑指南：2023年血泪教训总结
四、风险警示（证监会合规提示）
文末福利：指标源码领取复制
MA5:MA(CLOSE,5),LINETHICK1,COLORFFFFFF;MA10:MA(CLOSE,10),LINETHICK1,COLOR00FFFF; MA30:MA(CLOSE,30),LINETHICK1,COLORFF00FF;MA60:MA(CLOSE,60),LINETHICK1,COLOR0000FF; MA120:MA(CLOSE,120),LINETHICK1,COLORFFFF00; DRAWTEXT(CROSS(EMA(CLOSE,2),EMA(((SLOPE(CLOSE,21)*20)+CLOSE),42)),(LOW*0.99),'Ψ'),LINETHICK3,COLORF00FF0; DRAWTEXT(CROSS(EMA(((SLOPE(CLOSE,21)*20)+CLOSE),42),EMA(CLOSE,2)),(HIGH* 1.01),'◎'),LINETHICK3,COLORFFFFFF; STICKLINE((EMA(CLOSE,2)>=EMA(((SLOPE(CLOSE,21)*20)+CLOSE),42)),LOW,HIGH,0.1,0),COLOR0000FF; STICKLINE((EMA(CLOSE,2)>=EMA(((SLOPE(CLOSE,21)*20)+CLOSE),42)),CLOSE,OPEN,3,0),COLOR0000AA; STICKLINE((EMA(CLOSE,2)>=EMA(((SLOPE(CLOSE,21)*20)+CLOSE),42)),CLOSE,OPEN,2,0),COLOR0000CC; STICKLINE((EMA(CLOSE,2<EMA(((SLOPE(CLOSE,21)*20)+CLOSE),42)),CLOSE,OPEN,2,0),COLORCCCC00; STICKLINE((EMA(CLOSE,2<EMA(((SLOPE(CLOSE,21)*20)+CLOSE),42)),CLOSE,OPEN,3,0),COLORAAAA00; STICKLINE((EMA(CLOSE,2<EMA(((SLOPE(CLOSE,21)*20)+CLOSE),42)),LOW,HIGH,0.1,0),COLORFFFF00; STICKLINE((CROSS(EMA(CLOSE,2),EMA(((SLOPE(CLOSE,21)*20)+CLOSE),42)) OR CROSS(EMA(((SLOPE(CLOSE,21)*20)+CLOSE),42),EMA(CLOSE,2))),LOW,HIGH,0.1,0),COLOR00FFFF; STICKLINE((CROSS(EMA(CLOSE,2),EMA(((SLOPE(CLOSE,21)*20)+CLOSE),42)) OR CROSS(EMA(((SLOPE(CLOSE,21)*20)+CLOSE),42),EMA(CLOSE,2))),OPEN,CLOSE,3,0),COLOR00AAAA; STICKLINE((CROSS(EMA(CLOSE,2),EMA(((SLOPE(CLOSE,21)*20)+CLOSE),42)) OR CROSS(EMA(((SLOPE(CLOSE,21)*20)+CLOSE),42),EMA(CLOSE,2))),OPEN,CLOSE,2,0),COLOR00CCCC;
