Quote:
Originally Posted by raulus
You're right that Card Ladder has only been around for a few years - looks like they started in June 2020.
But I assume they collect sales data that goes back further. My experience is that data from 2010-today is fairly abundant, data from 2000-2010 tends to be less abundant, and before that is really sparse. So I wouldn't be surprised if they're picking up data from the last decade or so, and maybe attempting to go even further back, although I would be suspicious of just how precise any data will be prior to about 2010.
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Card Ladder was bought by Collectors:
https://www.psacard.com/articles/art...latform-ladder
They should have access to past sales data kept by PSA and Goldin. If the 2000-2010 ( which would include data from the Great Recession) is suspect then I would not think the current collected data is any more reliable.