{
  "url": "https://www.moonstonehq.com/articles/where-the-new-slabs-go",
  "slug": "where-the-new-slabs-go",
  "title": "Where the New Slabs Go: 339,436 PSA Submissions in a Month, 42% of Them Japanese, and the Cards Being Graded Fastest Are Gemming Less",
  "summary": "Our daily PSA population snapshots now span six weeks, long enough to watch the registry grow card by card. Across 3,248 lines with two readings at least three weeks apart, PSA added 339,436 slabs, 2.7% growth, about 9,634 a day. Japanese cards took 42% of that inflow on 30% of the stock; the year-old Mega Evolution era grew 9.6% in a month; Ascended Heroes grew 32.7%. A hundred cards absorbed nearly half of everything. And the new submissions gem less than the old stock: for Scarlet & Violet cards the slabs added this month came back PSA 10 at 19.5% against a 32.2% stock rate. Here is the grading queue, read from the registry.",
  "section": "Data forensics",
  "published": "2026-09-15",
  "readMinutes": 9,
  "publisher": "moonstone",
  "findings": [
    {
      "value": "339,436",
      "measures": "PSA slabs added across 3,248 tracked lines",
      "basis": "2.7% growth on 12.9 million; about 9,634 a day"
    },
    {
      "value": "42.4%",
      "measures": "of the inflow went to Japanese cards",
      "basis": "on 30.3% of the stock"
    },
    {
      "value": "48.1%",
      "measures": "of all new slabs went to 100 cards",
      "basis": "the top 10% of lines took 75.5%; 846 lines added none"
    },
    {
      "value": "19.5% vs 32.2%",
      "measures": "PSA 10 rate of this month's Scarlet & Violet submissions vs the existing stock",
      "basis": "59 lines with 200+ new slabs"
    }
  ],
  "tables": [
    {
      "title": "PSA slab inflow by era, lines with two snapshots at least 21 days apart (median 32 days), 2026-08-04 to 2026-09-15",
      "columns": [
        "Era",
        "Lines",
        "Slabs added",
        "Share of inflow",
        "Share of stock",
        "Growth",
        "PSA 10 rate, new slabs",
        "PSA 10 rate, stock"
      ],
      "rows": [
        {
          "Era": "Japanese",
          "Lines": "632",
          "Slabs added": "143,933",
          "Share of inflow": "42.4%",
          "Share of stock": "30.3%",
          "Growth": "3.8%",
          "PSA 10 rate, new slabs": "77.1%",
          "PSA 10 rate, stock": "77.4%"
        },
        {
          "Era": "Scarlet & Violet",
          "Lines": "612",
          "Slabs added": "65,743",
          "Share of inflow": "19.4%",
          "Share of stock": "24.5%",
          "Growth": "2.1%",
          "PSA 10 rate, new slabs": "26.9%",
          "PSA 10 rate, stock": "33.4%"
        },
        {
          "Era": "Mega Evolution",
          "Lines": "58",
          "Slabs added": "45,505",
          "Share of inflow": "13.4%",
          "Share of stock": "4.0%",
          "Growth": "9.6%",
          "PSA 10 rate, new slabs": "57.5%",
          "PSA 10 rate, stock": "55.9%"
        },
        {
          "Era": "Sword & Shield",
          "Lines": "516",
          "Slabs added": "37,834",
          "Share of inflow": "11.1%",
          "Share of stock": "19.7%",
          "Growth": "1.5%",
          "PSA 10 rate, new slabs": "37.4%",
          "PSA 10 rate, stock": "48.2%"
        },
        {
          "Era": "WotC",
          "Lines": "454",
          "Slabs added": "18,259",
          "Share of inflow": "5.4%",
          "Share of stock": "8.6%",
          "Growth": "1.7%",
          "PSA 10 rate, new slabs": "0.6%",
          "PSA 10 rate, stock": "3.2%"
        },
        {
          "Era": "Sun & Moon",
          "Lines": "206",
          "Slabs added": "8,608",
          "Share of inflow": "2.5%",
          "Share of stock": "4.8%",
          "Growth": "1.4%",
          "PSA 10 rate, new slabs": "38.6%",
          "PSA 10 rate, stock": "45.4%"
        },
        {
          "Era": "XY",
          "Lines": "141",
          "Slabs added": "4,919",
          "Share of inflow": "1.4%",
          "Share of stock": "2.4%",
          "Growth": "1.6%",
          "PSA 10 rate, new slabs": "7.0%",
          "PSA 10 rate, stock": "18.8%"
        },
        {
          "Era": "EX era",
          "Lines": "241",
          "Slabs added": "2,646",
          "Share of inflow": "0.8%",
          "Share of stock": "0.9%",
          "Growth": "2.4%",
          "PSA 10 rate, new slabs": "0.0%",
          "PSA 10 rate, stock": "4.3%"
        },
        {
          "Era": "Diamond & Pearl, Black & White, HGSS",
          "Lines": "283",
          "Slabs added": "2,180",
          "Share of inflow": "0.6%",
          "Share of stock": "0.8%",
          "Growth": "2.2%",
          "PSA 10 rate, new slabs": "0.0%",
          "PSA 10 rate, stock": "2.5%"
        }
      ]
    },
    {
      "title": "Sets absorbing the most new slabs, and the fastest-growing registries (5+ lines; growth requires 20,000+ slabs)",
      "columns": [
        "Set",
        "Slabs added",
        "Share of inflow",
        "Growth",
        "Per day",
        "PSA 10 rate, new vs stock"
      ],
      "rows": [
        {
          "Set": "MEGA Dream ex (Japanese)",
          "Slabs added": "23,661",
          "Share of inflow": "7.0%",
          "Growth": "23.4%",
          "Per day": "696",
          "PSA 10 rate, new vs stock": "77.2% vs 79.4%"
        },
        {
          "Set": "[Ascended Heroes](/set/ascended%20heroes)",
          "Slabs added": "16,566",
          "Share of inflow": "4.9%",
          "Growth": "32.7%",
          "Per day": "425",
          "PSA 10 rate, new vs stock": "59.7% vs 59.5%"
        },
        {
          "Set": "Terastal Festival ex (Japanese)",
          "Slabs added": "15,875",
          "Share of inflow": "4.7%",
          "Growth": "3.8%",
          "Per day": "414",
          "PSA 10 rate, new vs stock": "86.8% vs 88.0%"
        },
        {
          "Set": "Pokémon Card 151 (Japanese)",
          "Slabs added": "11,724",
          "Share of inflow": "3.5%",
          "Growth": "3.4%",
          "Per day": "328",
          "PSA 10 rate, new vs stock": "80.0% vs 82.8%"
        },
        {
          "Set": "SVP Black Star Promos",
          "Slabs added": "11,137",
          "Share of inflow": "3.3%",
          "Growth": "2.5%",
          "Per day": "293",
          "PSA 10 rate, new vs stock": "28.5% vs 36.1%"
        },
        {
          "Set": "[151](/set/151)",
          "Slabs added": "10,982",
          "Share of inflow": "3.2%",
          "Growth": "1.7%",
          "Per day": "307",
          "PSA 10 rate, new vs stock": "12.7% vs 28.5%"
        },
        {
          "Set": "[Destined Rivals](/set/destined%20rivals)",
          "Slabs added": "9,718",
          "Share of inflow": "2.9%",
          "Growth": "4.2%",
          "Per day": "268",
          "PSA 10 rate, new vs stock": "46.6% vs 49.2%"
        },
        {
          "Set": "SWSH Black Star Promos",
          "Slabs added": "9,705",
          "Share of inflow": "2.9%",
          "Growth": "1.8%",
          "Per day": "274",
          "PSA 10 rate, new vs stock": "18.7% vs 29.1%"
        },
        {
          "Set": "[Phantasmal Flames](/set/phantasmal%20flames)",
          "Slabs added": "9,253",
          "Share of inflow": "2.7%",
          "Growth": "6.3%",
          "Per day": "284",
          "PSA 10 rate, new vs stock": "58.0% vs 55.0%"
        },
        {
          "Set": "[Mega Evolution](/set/mega%20evolution)",
          "Slabs added": "7,769",
          "Share of inflow": "2.3%",
          "Growth": "4.5%",
          "Per day": "215",
          "PSA 10 rate, new vs stock": "63.4% vs 60.3%"
        },
        {
          "Set": "M2: Inferno X (Japanese)",
          "Slabs added": "7,636",
          "Share of inflow": "2.2%",
          "Growth": "8.2%",
          "Per day": "218",
          "PSA 10 rate, new vs stock": "84.6% vs 84.7%"
        },
        {
          "Set": "[Crown Zenith Galarian Gallery](/set/crown%20zenith%20galarian%20gallery)",
          "Slabs added": "7,099",
          "Share of inflow": "2.1%",
          "Growth": "1.8%",
          "Per day": "204",
          "PSA 10 rate, new vs stock": "43.9% vs 55.2%"
        },
        {
          "Set": "[Prismatic Evolutions](/set/prismatic%20evolutions)",
          "Slabs added": "5,911",
          "Share of inflow": "1.7%",
          "Growth": "3.5%",
          "Per day": "157",
          "PSA 10 rate, new vs stock": "34.2% vs 30.9%"
        },
        {
          "Set": "[Surging Sparks](/set/surging%20sparks)",
          "Slabs added": "5,829",
          "Share of inflow": "1.7%",
          "Growth": "2.2%",
          "Per day": "150",
          "PSA 10 rate, new vs stock": "37.9% vs 35.2%"
        }
      ]
    },
    {
      "title": "Registries growing fastest, slabs added per day (window 24 to 43 days), after the re-mapping rule in the first callout removes six faster lines whose inflow arrived in one step",
      "columns": [
        "Card",
        "Set",
        "Slabs added",
        "Per day",
        "Registry now",
        "Growth",
        "Raw market"
      ],
      "rows": [
        {
          "Card": "[Mega Charizard X ex](/card/mep-023)",
          "Set": "MEP Black Star Promos",
          "Slabs added": "9,033",
          "Per day": "361",
          "Registry now": "110,448",
          "Growth": "8.9%",
          "Raw market": "$33.87"
        },
        {
          "Card": "[Pikachu 020/M-P](/card/jat-649586)",
          "Set": "M-P Promotional Cards (Japanese)",
          "Slabs added": "7,565",
          "Per day": "315",
          "Registry now": "332,353",
          "Growth": "2.3%",
          "Raw market": "$34.26"
        },
        {
          "Card": "[Psyduck](/card/ja-M2a-199)",
          "Set": "MEGA Dream ex (Japanese)",
          "Slabs added": "8,794",
          "Per day": "267",
          "Registry now": "36,353",
          "Growth": "31.9%",
          "Raw market": "$18.61"
        },
        {
          "Card": "[Mega Gengar ex](/card/ja-M2a-240)",
          "Set": "MEGA Dream ex (Japanese)",
          "Slabs added": "6,940",
          "Per day": "204",
          "Registry now": "42,947",
          "Growth": "19.3%",
          "Raw market": "$377.15"
        },
        {
          "Card": "[Mega Charizard X ex SAR](/card/jat-655886)",
          "Set": "M2: Inferno X (Japanese)",
          "Slabs added": "4,859",
          "Per day": "139",
          "Registry now": "60,379",
          "Growth": "8.8%",
          "Raw market": "$714.95"
        },
        {
          "Card": "[Mega Charizard X ex](/card/me02-125)",
          "Set": "[Phantasmal Flames](/set/phantasmal%20flames)",
          "Slabs added": "3,651",
          "Per day": "122",
          "Registry now": "52,212",
          "Growth": "7.5%",
          "Raw market": "$701.82"
        },
        {
          "Card": "[Pikachu 001/SV-P](/card/jat-587758)",
          "Set": "SV-P Promotional Cards (Japanese)",
          "Slabs added": "4,250",
          "Per day": "112",
          "Registry now": "95,072",
          "Growth": "4.7%",
          "Raw market": "$21.53"
        },
        {
          "Card": "[Umbreon ex](/card/ja-SV8a-217)",
          "Set": "Terastal Festival ex (Japanese)",
          "Slabs added": "3,968",
          "Per day": "95",
          "Registry now": "93,240",
          "Growth": "4.4%",
          "Raw market": "$417.30"
        },
        {
          "Card": "[Mega Dragonite ex](/card/ja-M2a-250)",
          "Set": "MEGA Dream ex (Japanese)",
          "Slabs added": "2,724",
          "Per day": "72",
          "Registry now": "15,625",
          "Growth": "21.1%",
          "Raw market": "$197.47"
        },
        {
          "Card": "[Erika's Tangela](/card/me02.5-218)",
          "Set": "[Ascended Heroes](/set/ascended%20heroes)",
          "Slabs added": "2,680",
          "Per day": "62",
          "Registry now": "5,579",
          "Growth": "92.4%",
          "Raw market": "$16.65"
        },
        {
          "Card": "[Greninja ☆](/card/swshp-SWSH144)",
          "Set": "SWSH Black Star Promos",
          "Slabs added": "1,631",
          "Per day": "56",
          "Registry now": "57,688",
          "Growth": "2.9%",
          "Raw market": "$23.72"
        },
        {
          "Card": "[Piplup](/card/me02-098)",
          "Set": "[Phantasmal Flames](/set/phantasmal%20flames)",
          "Slabs added": "2,225",
          "Per day": "54",
          "Registry now": "18,493",
          "Growth": "13.7%",
          "Raw market": "$13.09"
        },
        {
          "Card": "[Pikachu ex](/card/me02.5-276)",
          "Set": "[Ascended Heroes](/set/ascended%20heroes)",
          "Slabs added": "2,252",
          "Per day": "52",
          "Registry now": "11,534",
          "Growth": "24.3%",
          "Raw market": "$992.92"
        },
        {
          "Card": "[Eevee](/card/svp-173)",
          "Set": "SVP Black Star Promos",
          "Slabs added": "2,134",
          "Per day": "51",
          "Registry now": "83,205",
          "Growth": "2.6%",
          "Raw market": "$12.36"
        },
        {
          "Card": "[Mega Gengar ex](/card/me02.5-284)",
          "Set": "[Ascended Heroes](/set/ascended%20heroes)",
          "Slabs added": "1,920",
          "Per day": "51",
          "Registry now": "13,728",
          "Growth": "16.3%",
          "Raw market": "$912.65"
        },
        {
          "Card": "[Umbreon ex](/card/svp-176)",
          "Set": "SVP Black Star Promos",
          "Slabs added": "1,565",
          "Per day": "51",
          "Registry now": "24,720",
          "Growth": "6.8%",
          "Raw market": "$32.40"
        },
        {
          "Card": "[Mega Clefable ex](/card/me03-119)",
          "Set": "[Perfect Order](/set/perfect%20order)",
          "Slabs added": "1,541",
          "Per day": "50",
          "Registry now": "3,449",
          "Growth": "80.8%",
          "Raw market": "$50.32"
        },
        {
          "Card": "[Mega Dragonite ex](/card/me02.5-290)",
          "Set": "[Ascended Heroes](/set/ascended%20heroes)",
          "Slabs added": "2,090",
          "Per day": "49",
          "Registry now": "9,217",
          "Growth": "29.3%",
          "Raw market": "$606.19"
        }
      ]
    },
    {
      "title": "English inflow by rarity and by raw price tier",
      "columns": [
        "Group",
        "Lines",
        "Slabs added",
        "Share of English inflow",
        "Growth",
        "PSA 10 rate, new vs stock"
      ],
      "rows": [
        {
          "Group": "Special illustration rare",
          "Lines": "151",
          "Slabs added": "48,677",
          "Share of English inflow": "25.1%",
          "Growth": "3.5%",
          "PSA 10 rate, new vs stock": "48.6% vs 39.9%"
        },
        {
          "Group": "Promo",
          "Lines": "189",
          "Slabs added": "35,109",
          "Share of English inflow": "18.1%",
          "Growth": "2.5%",
          "PSA 10 rate, new vs stock": "31.3% vs 33.7%"
        },
        {
          "Group": "Illustration rare",
          "Lines": "254",
          "Slabs added": "29,665",
          "Share of English inflow": "15.3%",
          "Growth": "2.5%",
          "PSA 10 rate, new vs stock": "34.3% vs 31.6%"
        },
        {
          "Group": "Ultra rare",
          "Lines": "392",
          "Slabs added": "21,144",
          "Share of English inflow": "10.9%",
          "Growth": "1.6%",
          "PSA 10 rate, new vs stock": "44.4% vs 47.7%"
        },
        {
          "Group": "Rare",
          "Lines": "495",
          "Slabs added": "18,171",
          "Share of English inflow": "9.4%",
          "Growth": "1.7%",
          "PSA 10 rate, new vs stock": "1.4% vs 3.4%"
        },
        {
          "Group": "Secret rare",
          "Lines": "143",
          "Slabs added": "6,983",
          "Share of English inflow": "3.6%",
          "Growth": "1.3%",
          "PSA 10 rate, new vs stock": "44.7% vs 57.3%"
        },
        {
          "Group": "Common",
          "Lines": "244",
          "Slabs added": "3,794",
          "Share of English inflow": "2.0%",
          "Growth": "1.9%",
          "PSA 10 rate, new vs stock": "2.6% vs 10.4%"
        },
        {
          "Group": "Raw price $100 and up",
          "Lines": "364",
          "Slabs added": "74,604",
          "Share of English inflow": "38.6%",
          "Growth": "2.6%",
          "PSA 10 rate, new vs stock": "33.0% vs 33.3%"
        },
        {
          "Group": "Raw price $25 to $100",
          "Lines": "560",
          "Slabs added": "69,402",
          "Share of English inflow": "35.9%",
          "Growth": "2.2%",
          "PSA 10 rate, new vs stock": "34.1% vs 35.2%"
        },
        {
          "Group": "Raw price $5 to $25",
          "Lines": "850",
          "Slabs added": "44,793",
          "Share of English inflow": "23.2%",
          "Growth": "2.2%",
          "PSA 10 rate, new vs stock": "43.6% vs 42.0%"
        },
        {
          "Group": "Raw price under $5",
          "Lines": "784",
          "Slabs added": "4,458",
          "Share of English inflow": "2.3%",
          "Growth": "1.0%",
          "PSA 10 rate, new vs stock": "50.3% vs 46.1%"
        }
      ]
    },
    {
      "title": "PSA 10 rate of slabs added in the window vs the pre-existing stock, lines with 200+ new slabs and a PSA 10 count at both ends",
      "columns": [
        "Era",
        "Lines",
        "Median stock gem rate",
        "Median gem rate of new slabs"
      ],
      "rows": [
        {
          "Era": "Japanese",
          "Lines": "118",
          "Median stock gem rate": "85.5%",
          "Median gem rate of new slabs": "84.3%"
        },
        {
          "Era": "Mega Evolution",
          "Lines": "31",
          "Median stock gem rate": "63.1%",
          "Median gem rate of new slabs": "65.6%"
        },
        {
          "Era": "Sword & Shield",
          "Lines": "39",
          "Median stock gem rate": "56.2%",
          "Median gem rate of new slabs": "47.2%"
        },
        {
          "Era": "Sun & Moon",
          "Lines": "11",
          "Median stock gem rate": "46.8%",
          "Median gem rate of new slabs": "38.4%"
        },
        {
          "Era": "Scarlet & Violet",
          "Lines": "59",
          "Median stock gem rate": "32.2%",
          "Median gem rate of new slabs": "19.5%"
        },
        {
          "Era": "XY",
          "Lines": "7",
          "Median stock gem rate": "3.5%",
          "Median gem rate of new slabs": "0.3%"
        },
        {
          "Era": "WotC",
          "Lines": "15",
          "Median stock gem rate": "0.5%",
          "Median gem rate of new slabs": "0.0%"
        },
        {
          "Era": "All 292 lines",
          "Lines": "292",
          "Median stock gem rate": "61.1%",
          "Median gem rate of new slabs": "56.9%"
        }
      ]
    }
  ],
  "charts": [],
  "sections": [
    "Japanese cards are the grading queue",
    "Ascended Heroes grew a third in a month",
    "A hundred cards took half the queue",
    "Special illustration rares are 11% of the stock and 14% of the queue",
    "New submissions gem less than the stock, except in the Mega era"
  ],
  "method": [
    "Universe: PSA population lines in our daily snapshots (keyed by TCGplayer product id) with a latest snapshot and an earlier snapshot at least 21 days older, as of 2026-09-15: 3,316 lines, median window 32 days. Excluded: 114 lines whose total fell between readings, 67 lines flagged as provider re-mappings (total more than doubled in the window, or a single step of 1,000+ slabs equal to 80% or more of the inflow), and one duplicate at 1,000+ slabs with identical totals at both ends. Final: 3,248 lines, 12,881,671 slabs at the latest reading, 339,436 added. Era follows the set prefix with Japanese prints as their own bucket; 54 lines not in our catalog are counted in totals and omitted from the era table. Growth is inflow over the earlier total; per day is inflow over the window length. PSA 10 rate of new slabs is the change in PSA 10 count over the change in total, on lines with a PSA 10 count at both ends, at least 50 new slabs for the era and set tables and at least 200 for the drift table; stock rate is the PSA 10 count over the total at the earlier reading. Raw market is the median of our recorded daily market price over the ten days to 2026-09-15. Set names for Japanese sets are the catalog's; four Japanese names are given in English translation. 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."
}