I want to know if this card will go up and down

Mew Prime is up 403 percent this year, fueled by a set-wide trend and tough grading odds.

Why the Oracle sees it this way

The PSA 10 tier has seen explosive growth but suffers from sparse observations, creating wide uncertainty. Lion Market recorded only four PSA 10 sales over the last 90 days, making exact-tier liquidity indeterminate. However, the trajectory is clear. In mid-2025, copies were trading around $3,000, and by June 2026, sales hit $13,000. This steep climb means the card is currently in price discovery, and the lack of repeated daily sales makes it impossible to lock in a robust baseline. This upward gravity is not isolated to Mew. Looking at a basket of comparable trajectories, other Triumphant chases are pulling the same way. A PSA 10 Absol Prime climbed from $1,060 to over $2,000, and Machamp Prime moved from $850 to nearly $1,500. Even outside the set, Japanese CP5 Dream Shine Collection Mew slabs jumped from $1,100 to $2,475. While these peers show strong agreement on the era heat, their lower price ceilings highlight just how much of a premium Mew commands. The strongest fundamental support comes from the 2010 Triumphant supply and grading difficulty. Out of over 2,300 PSA submissions, only 154 have earned a Gem Mint 10. That extreme scarcity fuels the current five-figure price tag. The biggest countercase is a potential set-wide pullback. If the broader vintage trend cools, the massive gap between a $2,119 PSA 9 and a $13,000 PSA 10 leaves a lot of room for the top tier to give back some of its premium.