{ "url": "https://www.moonstonehq.com/articles/magikarp-and-wailord-gx-value", "slug": "magikarp-and-wailord-gx-value", "title": "Magikarp & Wailord GX 161/181: $882 and 77 Comps", "summary": "The Team Up alternate art asks $882.13, third dearest in its set, with a PSA 10 at $4,275.00. Its promo twin gems 0.69% and has no PSA 10 sale at all.", "section": "Card study", "published": "2026-09-23", "readMinutes": 9, "publisher": "moonstone", "findings": [ { "value": "$882.13", "measures": "raw ask, third dearest of 196 Team Up cards", "basis": "99th percentile of the 5,879-card cohort" }, { "value": "$4,275.00", "measures": "PSA 10 sold median on 77 verified sales", "basis": "a 4.85x multiple, 22nd percentile" }, { "value": "51.0%", "measures": "gem rate, 2,280 tens of 4,467 submissions", "basis": "read September 21 2026, line proved unshared" } ], "tables": [ { "title": "Magikarp & Wailord GX 161/181 graded ladder, read September 23 2026", "columns": [ "Grade", "Sold median", "Verified sales", "Multiple of the raw ask" ], "rows": [ { "Grade": "PSA 10", "Sold median": "$4,275.00", "Verified sales": "77", "Multiple of the raw ask": "4.85x" }, { "Grade": "CGC 10", "Sold median": "$2,815.50", "Verified sales": "4", "Multiple of the raw ask": "3.19x" }, { "Grade": "PSA 9", "Sold median": "$1,232.50", "Verified sales": "35", "Multiple of the raw ask": "1.40x" }, { "Grade": "CGC 9.5", "Sold median": "not recorded", "Verified sales": "n/a", "Multiple of the raw ask": "n/a" }, { "Grade": "CGC 9", "Sold median": "not recorded", "Verified sales": "n/a", "Multiple of the raw ask": "n/a" }, { "Grade": "BGS 9.5", "Sold median": "not recorded", "Verified sales": "n/a", "Multiple of the raw ask": "n/a" }, { "Grade": "BGS 9", "Sold median": "not recorded", "Verified sales": "n/a", "Multiple of the raw ask": "n/a" }, { "Grade": "Raw (ask, not a sale)", "Sold median": "$882.13", "Verified sales": "n/a", "Multiple of the raw ask": "1.00x" } ] }, { "title": "Every priced product named Magikarp & Wailord GX, by raw ask, September 23 2026", "columns": [ "Card", "Set", "Number", "Raw ask", "PSA 10 sold", "Sales", "Registry", "Gem rate" ], "rows": [ { "Card": "[Magikarp & Wailord GX](/card/sm9-161)", "Set": "[Team Up](/set/team%20up)", "Number": "161/181", "Raw ask": "$882.13", "PSA 10 sold": "$4,275.00", "Sales": "77", "Registry": "4,467", "Gem rate": "51.0%" }, { "Card": "[Magikarp & Wailord GX](/card/smp-SM166)", "Set": "SM Black Star Promos", "Number": "SM166/248", "Raw ask": "$177.42", "PSA 10 sold": "not recorded", "Sales": "n/a", "Registry": "1,443", "Gem rate": "0.69%" }, { "Card": "[Magikarp & Wailord GX](/card/sm9-183)", "Set": "[Team Up](/set/team%20up)", "Number": "183/181", "Raw ask": "$145.22", "PSA 10 sold": "$523.42", "Sales": "19", "Registry": "1,450", "Gem rate": "43.0%" }, { "Card": "[Magikarp & Wailord GX](/card/sm9-160)", "Set": "[Team Up](/set/team%20up)", "Number": "160/181", "Raw ask": "$135.08", "PSA 10 sold": "$899.99", "Sales": "13", "Registry": "1,626", "Gem rate": "53.2%" }, { "Card": "[Magikarp & Wailord GX](/card/jat-572645)", "Set": "SM9: Tag Bolt (Japanese)", "Number": "111/095", "Raw ask": "$92.34", "PSA 10 sold": "$308.86", "Sales": "14", "Registry": "593", "Gem rate": "70.3%" }, { "Card": "[Magikarp & Wailord GX](/card/jat-572632)", "Set": "SM9: Tag Bolt (Japanese)", "Number": "098/095", "Raw ask": "$60.11", "PSA 10 sold": "$219.00", "Sales": "22", "Registry": "1,093", "Gem rate": "58.5%" }, { "Card": "[Magikarp & Wailord GX](/card/jat-572553)", "Set": "SM9: Tag Bolt (Japanese)", "Number": "019/095", "Raw ask": "$32.54", "PSA 10 sold": "$108.88", "Sales": "181", "Registry": "6,368", "Gem rate": "76.6%" } ] }, { "title": "Magikarp & Wailord GX 161/181 against the 5,879-product graded-ladder cohort", "columns": [ "Measure", "This card", "Cohort median", "Percentile", "Rank" ], "rows": [ { "Measure": "Raw ask", "This card": "$882.13", "Cohort median": "$18.93", "Percentile": "99.4", "Rank": "37 of 5,879" }, { "Measure": "Verified PSA 10 sales", "This card": "77", "Cohort median": "14", "Percentile": "83.5", "Rank": "964 of 5,879" }, { "Measure": "PSA registry line", "This card": "4,467", "Cohort median": "822", "Percentile": "83.4", "Rank": "973 of 5,879" }, { "Measure": "Gem rate", "This card": "51.0%", "Cohort median": "44.4%", "Percentile": "60.8", "Rank": "2,304 of 5,879" }, { "Measure": "PSA 10 premium", "This card": "4.85x", "Cohort median": "12.35x", "Percentile": "22.0", "Rank": "4,586 of 5,879" } ] }, { "title": "The three dearest cards in Team Up, September 23 2026", "columns": [ "Card", "Number", "Raw ask", "PSA 10 sold", "Sales", "Premium", "Registry" ], "rows": [ { "Card": "[Latias & Latios GX](/card/sm9-170)", "Number": "170/181", "Raw ask": "$3,910.42", "PSA 10 sold": "$15,050.00", "Sales": "46", "Premium": "3.85x", "Registry": "withheld, shared line" }, { "Card": "[Gengar & Mimikyu GX](/card/sm9-165)", "Number": "165/181", "Raw ask": "$2,020.10", "PSA 10 sold": "$7,900.00", "Sales": "63", "Premium": "3.91x", "Registry": "4,885" }, { "Card": "[Magikarp & Wailord GX](/card/sm9-161)", "Number": "161/181", "Raw ask": "$882.13", "PSA 10 sold": "$4,275.00", "Sales": "77", "Premium": "4.85x", "Registry": "4,467" } ] } ], "charts": [], "sections": [ "The ladder", "The promo with the same picture", "Where it sits", "The stale key that would have under-quoted it", "What the registry and the tapes did", "Proving the registry line belongs to this card", "What this study cannot show", "What would overturn this" ], "method": [ "Sources: the `cards` catalog, `price_history`, `graded_snapshots` and `population_snapshots` in production, read on day 20719, September 23 2026. The card is resolved by NAME AND NUMBER: Magikarp & Wailord GX, number 161, set Team Up, catalog id sm9-161, TCGplayer product id 183964. A folded same-name sweep across all 62,388 products, stripping accents, apostrophes, the gender signs and the provider's trailing number suffix, returns eight products; seven carry a price on the day and are tabled, one Japanese row does not and is named in prose. RAW is an ASK, the day-20719 `price_history` reading. GRADED figures are SOLD medians over verified completed sales with the count beside them, latest `graded_snapshots` row per grade across BOTH keyspaces with the fresher row winning. This card is the case that rule exists for: its catalog-id key sm9-161 last wrote on day 20675, August 10 2026, at a PSA 10 median of $3,892.50 on 63 sales, while its product-id key 183964 wrote on day 20719 at $4,275.00 on 77 sales, and only the latter is used. REGISTRY is `population_snapshots`, latest reading per key, September 21 2026 for this card; the latest day differs per card across this series. Gem rates pass `gemRateIsTrustworthy()`; the September 14 reading on this card records an absent PSA 10 breakdown and is excluded, so the growth window runs September 7 to September 21. Line sharing is tested by `sharedRegistryKeys()` over all 24,385 population keys (883 flagged, 788 products affected, neither this card nor smp-SM166 among them; sm9-170 IS among them, so its registry is withheld in the Team Up table and it is absent from the tag-team population) and by the grade-by-grade pooling ratio described below. Two assertions run over the graded rows this series prints, and they do not cover the same rows. STALENESS: on every product this module prints a graded figure for, and after the fresher-keyspace rule, any median dated before day 20695, the first day of the current daily tape, is dropped, because the never-refreshed catalog-id keyspace holds rows old enough to invert against their own neighbouring grade. That assertion runs on all 258 graded rows the 66 products this module links carry, at every grade and every grader, and removes exactly one, a CGC 10 dated day 20694 on a card whose graded figures are not printed here, leaving 257. The cohort below is built WITHOUT that gate: applied across the whole catalog it drops nine PSA 10 medians, leaving 8,684 products with a PSA 10 median on two or more sales and a cohort of 5,871, 4,183 English and 1,688 Japanese, and no rank printed in this series moves by more than seven places. POOLING RATIO: recorded sales at a grade divided by the registry count at that grade. This is NOT an impossibility test, and calling it one would be wrong: `graded_snapshots` counts SALES and one slab can sell more than once, so a ratio above 1 is evidence that a graded key is pooling another product, not a physical contradiction. The declared bar is 1.0. `population_snapshots` records a per-grade count at PSA 10 and PSA 9 only, so the ratio is computable on 114 of those 257 rows and on no BGS or CGC row at all; the highest of the 114 is 0.94, 29 PSA 10 sales against the 31 tens on the Wizards-era Eevee's line, and only three exceed 0.5. THE COHORT: 62,388 products after deduplicating 63,600 catalog rows on the TCGplayer product id; 5,879 carry an ask, a PSA 10 median on two or more verified sales, a trustworthy gem rate and an unshared registry line. THE TAG-TEAM POPULATION is the 106 cohort members whose English name contains an ampersand and ends GX, ex or EX. Percentile is the share of the cohort strictly below this card's value; medians are upper-middle on even samples. The Team Up total of $11,467.87 is a same-day sum of `price_history` over the 196 English products we price in the set, a different instrument from the `sethist2` index the set page prints. The weekly per-card series is `ppthist:183964`, first reading January 27 2025, last September 22 2026. Not financial advice." ], "terms": "Figures are moonstone's own recorded measurements, dated as published. Quote them with the population stated beside them. The article at `url` is the human form of this file." }