Price trends

Longacre

Does anyone know exactly how the "price trends" are calculated? Is it possible to get the underlying calculations? Or is there anyone that publishes the auction and retail prices for particular coin series and dates/mintmark? For example, if I wanted to see the pricing trends for an 18XX eagle in grade Y with mintmark Z over the past 5 years, is there anyplace I can find that information? Thanks.

RELLA

A good baseline for this info is Heritage Permanent Auction archives...not as useful on scarce date material though because their customer system only returns their own auction history. I've had luck building a price history profile in those cases from a number of similar dates in the same series. I believe there is a source for compiled results from all the top auction houses but do not know who the provider is.

Or you can hire me at a high hourly rate to do such research for you.

RELLA

mhammerman

Yes, Rella that is a great place but you have to "build" a history for your interests like you say. Another is the "CU3000" index

http://www.pcgs.com/prices/frame.chtml?type=coinindex&filename=index

but it seems more studious to work with the heritage histories because they go back to like '98 or so but the down side is they add the 15% juice to the sale price they use in the history.

excellent topic!

stujoe

Are you a Coin World subscriber?

If so, you can go to http://www.coinworldtrends.com/ to view the Online Trends (Coinv Values I think they call it now).

It is not intuitive but they have their Trends prices going back to Jan 2000.

What you do to get to the history is go to the page with the current trends for your coin or coin type and then click on the current Trends price. It will bring up the Trends history popup window.

Edited to fix link...as usual.

kranky

You can use the Redbook if the coin is listed. If you want to track something rare, you should use the Heritage archives as Rella pointed out.

Krause Publications (collect.com) sells books with auction records as well.