Sun & Moon Secret (SUM) carries a total slabbed market cap of $3.7M as of Nov 13, 2026. TCGBerg tracks a fair value for 70 card and grade combinations in the set. Umbreon GX #154 · PSA 10 anchors the set at 42.5% of its total cap.
Historical context
Released in 2017 as a EN release.
Market overview
Cap is concentrated: the largest card-grade position is 42.5% and the top 5 make up 78.9% of set cap. The set's cap-weighted fair-value confidence is moderate (41/100). It has seen 128 graded sales over the trailing 30 days.
Frequently asked
How much is a complete Sun & Moon Secret set worth?
One Near Mint copy of each Sun & Moon Secret card costs about $359 (the cheapest printing of each, 14 of 14 cards priced as of Nov 10, 2026). The most valuable is Umbreon GX #154 at $117.
What are the chase cards in Sun & Moon Secret?
Ranked by PSA 10 fair value, the most valuable Sun & Moon Secret cards on TCGBerg are Umbreon GX #154 ($1,442.15), Espeon GX #152 ($936.86), Lapras GX #151 ($515.33), Solgaleo GX #155 ($376.64) and Lunala GX #153 ($290.09).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 Sun & Moon Secret card list?
This list covers 14 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 Sun & Moon Secret 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.