Undersea Ruins #138 Aquapolis Reverse Holofoil Price

Undersea Ruins #138 price, trend & prediction

Undersea Ruins #138 (Reverse Holofoil, Uncommon) from Aquapolis (2003) has a market price of $14.99 raw as of October 10, 2026, the TCGplayer market price for this exact printing. For context, the median Aquapolis card is $35.27; this one ranks #218 of 316 priced printings. Over the last 30 days the price has held steady (+0.0%), +0.0% over 90 days.

Graded copies of Undersea Ruins sell for more than raw. A PSA 10 has a recent sale median of $400.00, about 27× the raw price (1 recent sale) — thin data, treat as indicative. PSA 9 copies go for around $25.88, about 1.7× the raw price (2 recent sales) — thin data, treat as indicative. Other grades we track: CGC 8.5 at $19.88, CGC 9.5 at $4.25. Graded medians come from recent eBay sold listings and refresh daily.

Undersea Ruins #138 price prediction: if recent momentum continues, the 30-day trend for this card is sideways. Momentum is flat: the price has barely moved across the windows we track (+0.0% over 30 days, +0.0% over 7 days, +0.0% over 90 days). This is a read of past price moves, not a model forecast and not investment advice — see the forecast methodology and public accuracy scoreboard for how our ML outlooks are built and scored.