Strength of SPX500, GER30, Gold and JPY.
study("Strength SPX500 GER30 XAUUSD JPY", precision=3) fast=input(5) slow=input(15) v1=security('SPX500/USDJPY',period,close) v2=security('SPX500/XAUUSD',period,close) v3=security('GER30/SPX500',period,close) v4=security('GER30/USDJPY',period,close) v5=security('GER30/XAUUSD',period,close) v6=security('XAUUSD/USDJPY',period,close) SPX=(v2+(100-v3))/3 GER=(v3+v5)/3 XAU=((100-v2)+(100-v5))/3 JPY=((100-v1)+(100-v4)+v6)/3*100 spx=tsi(SPX,fast,slow) ger=tsi(GER,fast,slow) xau=tsi(XAU,fast,slow) jpy=tsi(JPY,fast,slow) plot(spx,color=green,title='SPX500') plot(ger,color=gray,title='GER30') plot(xau,color=orange,title='XAUUSD', linewidth=2) plot(jpy,color=#ff3377,title='JPY') hline(0,title='midpoint') hline(0.5,title='overbought') hline(-0.5,title='oversell')