30th Celebration Mew More Than Doubles in Seven Days

The Mew from the 30th Celebration set — catalog number #B — recorded the sharpest percentage climb among all tracked cards this week, rising from $1702.50 to $3746.75 between October 9 and October 16, 2026. That move represents a gain of $2044.25, or 120.1%, in a single seven-day window.

The card's price effectively more than doubled, placing it in rare company for a weekly price event on the platform. What drove the move is not confirmed by available data, but the scale of the shift makes it the clear headline for the week.

What the Numbers Show

The starting price of $1702.50 already positioned this card firmly in premium territory before the run began. The closing figure of $3746.75 represents the new tracked price as of October 16. The 120.1% gain is not a small incremental move or a correction off a recent low — it is a clean doubling-plus over seven days.

Among the cards GrailGauge monitors, no other entry posted a comparable percentage gain in the same window, making this the week's standout market event by that measure.

Why Collectors Are Watching

The 30th Celebration Mew is a holofoil release tied to a milestone anniversary set, which gives it a fixed supply profile distinct from cards still entering circulation through ongoing pack sales. Cards from closed, celebratory sets do not receive reprints in the traditional sense, meaning any demand shift runs directly against whatever inventory is currently available on the secondary market.

A move of this size — crossing from the $1,700 range to the $3,700 range in one week — tends to reset price expectations for a card. Sellers who were listing at or near the prior price point may now be holding, while buyers who missed the earlier price face a substantially different market.

What Remains Unknown

The data does not indicate what triggered the surge. No specific auction result, grading milestone, or external event is confirmed in the available information. Whether the new price level holds, retreats, or continues moving is outside the scope of what current data supports.

Collectors tracking this card can follow price movement at the Mew listing page, where the 7-day and historical charts reflect the full scope of this week's action.