Blog
Market intelligence, in plain English.
How Price Signal works, how we spot eBay opportunities, and what we're learning as collectors trade with data instead of gut feel.
Clefairy from Perfect Order: A Live eBay Opportunity
How CardSignals flagged a Clefairy 094/088 IR from Perfect Order on eBay at $18.50 while Price Signal fair value sat at $21.79 and market printed near $19.20.
Read · 4 min
Track Collector Premium with Set Rotation
Learn how CardSignals Set Rotation compares Pokémon card market prices with Price Signal fair value to reveal which sets hold the most collector premium.
Read · 4 min
What "Good Buy" Means on eBay Listings
How CardSignals Good Buy badges compare eBay all-in asks (item + shipping) to Price Signal fair value or market price, and what Great buy, Good buy, At market, Fair, and Bad buy mean.
Read · 5 min
Finding Pokémon Card Opportunities on eBay
How CardSignals uses Price Signal and live eBay listings to surface Pokémon card deals, like Mega Feraligatr ex listings well below a $174 market print.
Read · 4 min
How Price Signal Estimates Fair Value
See how CardSignals Price Signal estimates Pokémon card fair value from supply, demand, and real market data, and how to spot listings that look high or low.
Read · 5 min