"Relative Strength" is a very important concept. For years I've used Investor's FastTrack software. They track everything in the equities and bonds realm... includes something like 20,000 daily data entries (some overlapping in the groups)... update the data base daily... and give you the opportunity to run the charts of up to 6 issues at one time "comparo style"... plus the ability to "rank" the performance of all issues within a list (including your custom list). Years ago I used them in my mutual fund timing service... and I still do. (Before I found FT, I used to enter the daily data by hand.... what a pain in the neck! They did it for me for about $.75 per day at the start...more like $2/day now...THANK YOU FED... not to mention including dividends and splits.) Basic cost is ~ $550/yr for one "group"... half of that for each additional group if you choose. Groups include, stocks, bonds, ETFs, mutual funds, indices... and maybe more. You get the "indices" list as a freebie for subscribing to any of the other groups. Invaluable! investorsfasttrack.com, if interested FWIW...
I'm surprised that there haven't been some comments here about RS (Relative Strength). So lets say... the market is trending UP. Where should you have your money? General Market? (SPY or equivalent?) Lagging Group, like Utilities? Sector(s) leading the market? Like Tech, Financial, Energy or other? Wouldn't this be valuable info to know? HOW do you know? Gather the data and rank it versus others! That's what FastTrack (or any equivalent service) can do for you. FWIW...
Site is giving me a bit of a hassle... Nevertheless... if you're going to be at risk in the markets, wouldn't the "Relative Strength" of "what's performing best" be of interest to you... where you might want to have your money? So, what's leading? Energy, metals, financial, solar? Or, if what you have is "sucking hind tit"... Worth knowing, don't you think? (This part of it isn't "rocket science".) This list is from a partial ranking of RS from 10/28/02020