On a lark I looked up a rather expensive (for me) coin on both websites, purchased in May 2024. PCGS shows my sale in their price guide auction results, but on NGC their most recent listing for the same coin, date, MM and grade is from 2016. It's a data point of one but I thought it was interesting. Numismedia shows almost exactly the price I paid ($1910 vs $1920). NGC is about $200 lower and PCGS is $400 higher. Does anybody else have an example? (Bottom line, always check the auction sites).
I use NGC online coin guide pricing because it is easy and quick, and hopefully more updated than a paperback Redbook. I've noticed difficult dates/mints are hammering somewhat higher (as much as 20%) than than the online suggested values. The more common dates/mints, not so much, even decent discounts.........other than heavily circulated coins, their values more reflect the recent increase in bullion pricing.
Possibly NGC is updating their price guide but not the data below it, but if so, off of what? I use both of their price guides but always check when and where their results are from, go to those sites and look for myself. I thought it was odd that NGC's latest was 8 years old. AU55 for example of the same coin had an HA sale in February and NGC's latest is from 2013, over 11 years ago. Methinks they need some automation.
It certainly isn't perfect by any means, but I look at Morgans on almost a weekly basis and compare to their guide. It's still a good benchmark, but not the Bible either. When it comes to really rare coins, I'm not in that marketplace anyway. I'm just a poor boy, nobody loves me. I'm just a poor boy from a poor family Spare me life from this monstrosity..........
If you are referring to the past sales box, I know with NGC, where I have a membership and submit, users can report transactions. I'm not sure if PCGS does this, but it could be why PCGS shows the result and NGC doesn't. It would be impossible to keep up with all the sales of coins. I know PCGS and NGC occasionally show the past sales of cert numbers when you look them up. I'm not entirely sure how much of that is company provided or member provided. I think most of it is member provided.
