As of Nov 13, 2026, the XY - BREAKthrough · Secret · Composite stands at 170.07, down 7.8% in 30 days (8 constituents).
Top holdings
by weight- Mewtwo EX · PSA 1030.9%
- Mewtwo EX · PSA 1028.7%
- Mewtwo EX · PSA 914.7%
- Mewtwo EX · PSA 912.5%
- Mewtwo EX · PSA 84.9%
Top 5 hold 91.7% of index weight across 8 constituents.
Index value over time
Weekly index level. Pro members can view and export the complete recorded history. Constituents are cap-weighted with the divisor reset on each monthly rebalance.
Constituents
Every atom in the index, cap-weighted and dampened by sales evidence. Follow a card name to drill into the underlying card detail.
- 1Mewtwo EX- Secret · PSA 10 · $2.39M30.9%↓0.7%
- 2Mewtwo EX- Secret · PSA 10 · $2.21M28.7%↓0.1%
- 3Mewtwo EX- Secret · PSA 9 · $1.13M14.7%↑0.1%
- 4Mewtwo EX- Secret · PSA 9 · $969.1K12.5%·0.0%
- 5Mewtwo EX- Secret · PSA 8 · $378.9K4.9%·0.0%
- 6Mewtwo EX- Secret · PSA 8 · $362.6K4.7%↑1.5%
- 7Mewtwo EX- Secret · PSA 7 · $149.6K1.9%↑0.2%
- 8Mewtwo EX- Secret · PSA 7 · $127.5K1.7%↑0.8%
Rebalances
Most recent weekly rebalance events. The divisor is reset on each event so the index level remains continuous through composition changes; subsequent moves are price-driven.
- Nov 7, 2026divisor42,389→42,345Δcap0.0%Added (0)NoneRemoved (0)None
- Oct 24, 2026divisor40,892→40,898Δcap0.0%Added (0)NoneRemoved (0)None
- Oct 17, 2026divisor37,306→37,308Δcap0.0%Added (0)NoneRemoved (0)None
- Oct 10, 2026divisor40,638→40,638Δcap0.0%Added (0)NoneRemoved (0)None
- Oct 3, 2026divisor36,430→38,792Δcap6.5%Added (0)NoneRemoved (0)None
- Sep 26, 2026divisor36,415→36,415Δcap0.0%Added (0)NoneRemoved (0)None
Methodology
Cap-weighted from confidence-scored fair values, rebalanced monthly with continuous divisor accounting.
Read the full methodologyParent set
Cap-weighted, with each constituent dampened by the sales evidence behind its fair value so noisy inputs move the index less. Weekly rebalances with continuous-divisor accounting, so population growth and membership changes never move the level: only price action does. A constituent needs a fair value and a non-zero graded population; sales evidence adjusts its weight rather than gating its inclusion. Per-grade series isolate one tier, composites span PSA 7-10. All values are USD-denominated, base 100 at inception.
Related
Other indices that share this print run or this grade tier, plus the parent set.

