Calculating NYSE Up Volume (UPVOL.NY) vs NYSE Down Volume (DNVOL.NY). The triangles appear when the ratio exceeds 90% in either direction.
Also has the option to switch to NQ, US, DJ, AM, or AX tickers.
Credit to @MagicEins for the original script:
Plots the NYSE, NASDAQ, AMEX UP Volume and DOWN Volume ratios as a histogram - and adds the index UVOL / DVOL ratios as a line graph.
DVOL is represented as negative - UVOL as positive. When either is above 2 its a good predictor of the day's outcome. At least - it tells you if the bulls or bears are winning the day.
Really simple to use / edit to your needs
Enjoy
