[isatrader]

ps: have you ever heard of them yourselves ?

I have come across it before in some books that I read years ago. But there are a few other research services that also use market breadth indicators and relative performance versus the market and sectors in similar ways too, and that i've incorporated into my personal weight of evidence approach over the years. They just have slightly different approaches, in that they are point and figure based mostly. One is called Dorsey Wright, which seems to have been bought out by the Nasdaq in the last few years, as they've turned their research into a number of ETFs and he wrote a a few books that explains various the market breadth and relative strength charts that they generate on their research service which I trialed for a while to learn more about it, which some other members on here use still I believe. Here's a link: https://www.amazon.co.uk/Point-Figure-Ch...1118445708 But the dorsey site really helped me refine my understanding of the bullish percent index and moving average breadth and well as the relative strength work.

The other one is Investors Intelligenge, who created the NYSE Bullish Percent Index in 1955, and also use a combination of that, moving average breadth and AD line, new high new lows etc. You can find them here: https://www.investorsintelligence.com/x/us_stocks.html and here's the link to the breadth page: https://www.investorsintelligence.com/x/...ators.html