XY - Steam Siege Secret (STS) carries a total slabbed market cap of $2.4M. TCGBerg tracks a fair value for 10 card and grade combinations in the set. Gardevoir EX #116 · PSA 10 anchors the set at 60.1% of its total cap.
Historical context
Released in 2016 as a EN release.
Market overview
Cap is concentrated: the largest card-grade position is 60.1% and the top 5 make up 96.8% of set cap. The set's cap-weighted fair-value confidence is high (77/100). It has seen 31 graded sales over the trailing 30 days.

























