**The primary driver behind the 59.5% market-implied odds favoring an "Up" move for the Phantasmal Flames booster box by August 31 is sustained demand for the set’s dominant chase card—the Mega Charizard X ex Special Illustration Rare—which has propelled sealed product values from post-release lows near $250 into the $390–$400 range over the past several months.** This small November 2025 expansion initially underperformed with collectors due to its size and pull rates, but the Charizard’s ongoing appeal and strong secondary-market performance have created consistent upward pressure on booster boxes, as seen in recent TCGPlayer and PriceCharting data hovering around $391–$393. Short-term momentum appears supported by persistent collector interest in the set’s high-end hits rather than fresh supply surges or announcements, though minor recent dips highlight the potential for volatility in a thin market window. Traders appear to weigh the established appreciation trajectory against limited near-term catalysts before month-end.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedPhantasmal Flames Booster Box Price Over/Under $377.98 on August 31?
Over
Over
This market will resolve to “Under” if the Ungraded Price of Phantasmal Flames Booster Box (Phantasmal Flames) on August 31, 2026 according to Collectr is less than $377.98.
This market will resolve 50-50 if the Ungraded Price of Phantasmal Flames Booster Box (Phantasmal Flames) on August 31, 2026 according to Collectr is exactly equal to $377.98.
This market will resolve according to the first publication of the final Ungraded Price value for the specified date. Any later revisions or retractions will not be considered.
If no final Ungraded Price value for the specified date has been published by 11:59 PM ET on the seventh day after the specified date, this market will resolve based on the final Ungraded Price value for the most recent date preceding the specified date for which such a value is available as of that time.
If the resolution source becomes permanently unavailable, or it ceases to publish and make available the Ungraded Price of the specified item, this market will resolve 50-50.
The resolution source for this market will be the “Ungraded Price” for the specified item on Collectr (https://app.getcollectr.com/).
Market Opened: Aug 14, 2026, 3:38 PM ET
Resolution Source
https://app.getcollectr.com/Resolver
0x65070BE91...This market will resolve to “Under” if the Ungraded Price of Phantasmal Flames Booster Box (Phantasmal Flames) on August 31, 2026 according to Collectr is less than $377.98.
This market will resolve 50-50 if the Ungraded Price of Phantasmal Flames Booster Box (Phantasmal Flames) on August 31, 2026 according to Collectr is exactly equal to $377.98.
This market will resolve according to the first publication of the final Ungraded Price value for the specified date. Any later revisions or retractions will not be considered.
If no final Ungraded Price value for the specified date has been published by 11:59 PM ET on the seventh day after the specified date, this market will resolve based on the final Ungraded Price value for the most recent date preceding the specified date for which such a value is available as of that time.
If the resolution source becomes permanently unavailable, or it ceases to publish and make available the Ungraded Price of the specified item, this market will resolve 50-50.
The resolution source for this market will be the “Ungraded Price” for the specified item on Collectr (https://app.getcollectr.com/).
Resolution Source
https://app.getcollectr.com/Resolver
0x65070BE91...**The primary driver behind the 59.5% market-implied odds favoring an "Up" move for the Phantasmal Flames booster box by August 31 is sustained demand for the set’s dominant chase card—the Mega Charizard X ex Special Illustration Rare—which has propelled sealed product values from post-release lows near $250 into the $390–$400 range over the past several months.** This small November 2025 expansion initially underperformed with collectors due to its size and pull rates, but the Charizard’s ongoing appeal and strong secondary-market performance have created consistent upward pressure on booster boxes, as seen in recent TCGPlayer and PriceCharting data hovering around $391–$393. Short-term momentum appears supported by persistent collector interest in the set’s high-end hits rather than fresh supply surges or announcements, though minor recent dips highlight the potential for volatility in a thin market window. Traders appear to weigh the established appreciation trajectory against limited near-term catalysts before month-end.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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