Last sale: Oct 10, 2026 · Last checked: Oct 13, 2026
Mewtwo GX Secret (Pokemon Sun & Moon Shining Legends #78/73) has a PSA 10 market cap of $23.72M on CardZ Marketcap as of Oct 13, 2026: PSA 10 price $8,500 × PSA 10 population 2,790. Ranked #35 by market cap among 1,677 ranked cards across CardZ Marketcap.
Background
Mewtwo GX Secret Shining numbered 78 is the Sun & Moon Shining Legends printing used as a PSA 10 reference on the CARDZ board.
Identity stays 78/73 in Shining Legends. No Japanese twin or artist line is added here.
METHOD & DATA
How the market cap number is built
Market cap is the current PSA 10 reference price multiplied by the verified PSA 10 population, recalculated on every daily update.
Reference price
The most recent completed PSA 10 sale captured inside CardZ Marketcap tracked coverage. Lots are unitised down to a single card, and a sale priced far outside its own recent range is rejected in favour of the next most recent one.
Population
The verified PSA 10 population for that exact printing — language, set, collector number and parallel are never merged across printings.
Gaps
A card with insufficient data coverage in the window is marked as accumulating rather than being given a filled-in number. A missing value stays missing, never zero.
Compiled and reviewed by the CardZ Marketcap Editorial desk.
