Weavile G Surges 54.8% While Expedition Charizard Sheds 29.6% in Volatile Week

The week ending 2026-09-18 delivered sharp moves in both directions across the Pokémon TCG secondary market. Weavile G posted the strongest percentage gain tracked this week, while Charizard from Expedition Base Set recorded the steepest loss — a rare pairing of extreme movement in a single seven-day window.

Weavile G Breaks Out

Weavile G (Platinum #17, holofoil) opened the tracking period at $10.43 and closed at $16.14, a gain of $5.71 over seven days. That represents a 54.8% increase — the largest percentage move among all tracked cards for the week.

Weavile G is a Pokémon SP card from the 2009 Platinum set, a category that has historically attracted a dedicated collector base focused on the SP mechanic era. The card sits at a price point that tends to see activity from a broad pool of buyers, meaning relatively modest demand shifts can produce outsized percentage moves. The specific catalyst behind this week's spike is not confirmed by available data, so the precise driver remains unknown.

What the numbers do show is that the move was sustained across the full seven-day window rather than appearing as a single-day anomaly, suggesting more than one transaction contributed to the new price level. Whether that level holds going into the following week is a question the data cannot yet answer.

Expedition Charizard Pulls Back Sharply

On the other side of the ledger, Charizard (Expedition Base Set #6, holofoil) dropped from $408.33 to $287.50 — a decline of $120.83, or 29.6%, over the same period.

Expedition Base Set Charizard is among the more closely watched vintage holofoils on the market. The set, released in 2002 as part of the e-Card series, carries condition sensitivity that makes high-grade copies meaningful outliers from raw or lower-grade examples. A price shift of this magnitude in a single week is notable for a card trading above $200, as higher-priced cards typically require several transactions to register clean directional moves in aggregated pricing data.

The drop brings the card to $287.50, its lowest recorded price in the current tracking window. As with the Weavile G gain, no specific external event has been confirmed as the cause. Sales mix — the grades and conditions of copies that actually changed hands — can significantly influence week-over-week price readings for vintage cards, and that factor cannot be ruled out here.

What the Week Shows

Taken together, the two moves illustrate a market that remains sensitive to transaction-level activity. A mid-tier Platinum SP holofoil and a four-figure vintage Charizard moving this sharply in the same week, in opposite directions, reflects how thin liquidity can be even for cards with established collector interest.

For cards with relatively few sales per week, a small cluster of transactions at different price points can shift the tracked average substantially. That dynamic applies to both cards covered here. Collectors monitoring either position will find updated price history on the respective card pages as new data comes in.