XY - BREAKthrough Ultra Rare (BKT) carries a total slabbed market cap of $14.6M as of Nov 13, 2026. TCGBerg tracks a fair value for 100 card and grade combinations in the set. Mewtwo EX #158 · PSA 10 anchors the set at 15.2% of its total cap.
Historical context
Released in 2015 as a EN release.
Market overview
Cap is concentrated: the largest card-grade position is 15.2% and the top 5 make up 56.6% of set cap. The set's cap-weighted fair-value confidence is moderate (54/100). It has seen 342 graded sales over the trailing 30 days.
Frequently asked
How much is a complete XY - BREAKthrough Ultra Rare set worth?
One Near Mint copy of each XY - BREAKthrough Ultra Rare card costs about $825 (the cheapest printing of each, 24 of 24 cards priced as of Nov 13, 2026). The most valuable is M Mewtwo EX #160 at $138.
What are the chase cards in XY - BREAKthrough Ultra Rare?
Ranked by PSA 10 fair value, the most valuable XY - BREAKthrough Ultra Rare cards on TCGBerg are Mewtwo EX #157 ($6,573.49), Mewtwo EX #158 ($5,235.71), Houndoom EX #153 ($5,032.39), M Mewtwo EX #160 ($3,310.21) and M Mewtwo EX #159 ($2,960.35).Values are model estimates from recorded sales and change as the market moves; open a card for its sales evidence and graded values.
What is included in the XY - BREAKthrough Ultra Rare card list?
This list covers 24 catalog printings. Editions and finishes can have separate entries for the same card number. Prices appear where valuation or sales evidence is available; an unpriced entry does not mean the card is worth zero.
How do I compare XY - BREAKthrough Ultra Rare card prices?
Match the card number, printing and condition before comparing values. Use raw condition prices for ungraded copies, and the same grading company and grade for slabs. Open a card to check the available price history, recorded sales and sales evidence.