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Weekly market report ·

The market rose 0.5% this week — Grotle led the gainers

628 modern cards rose and 809 fell. 151 was the strongest set (+1.0%); Ascended Heroes the weakest (−3.8%).

By the Tallgrass Market DeskWeek September 5, 2026 → September 12, 20262 min read

Market data, not financial advice.

The Pokémon TCG market rose 0.5% in the week to September 12, 2026, putting the Tallgrass market index +4.7% over the last 30 days.

Under the surface, modern cards were weaker than the headline: 809 fell and 628 rose, for a median move of −0.4%.

Market index, 7 days
+0.5%
Market index, 30 days
+4.7%
Modern cards up / down
628 / 809
Graded sales this week
36,559
Tallgrass market index, last 90 days
170.0180.0190.0Jun 14Jul 29Sep 12
Show as table
DateIndex level
Sep 12, 2026192.0
Sep 11, 2026191.7
Sep 10, 2026191.8
Sep 9, 2026192.3
Sep 8, 2026192.0
Sep 7, 2026191.8
Sep 6, 2026191.4
Sep 5, 2026191.0
Sep 4, 2026190.9
Sep 3, 2026190.5
Sep 2, 2026190.5
Sep 1, 2026190.0
Aug 31, 2026189.2
Aug 30, 2026189.0
Aug 29, 2026188.9
Aug 28, 2026188.6
Aug 27, 2026188.2
Aug 26, 2026188.2
Aug 25, 2026188.0
Aug 24, 2026187.5
Aug 23, 2026187.4
Aug 22, 2026186.8
Aug 21, 2026186.6
Aug 20, 2026186.4
Aug 19, 2026185.2
Aug 18, 2026183.7
Aug 17, 2026183.6
Aug 16, 2026183.7
Aug 15, 2026183.4
Aug 14, 2026183.4
Aug 13, 2026183.4
Aug 12, 2026183.4
Aug 11, 2026182.6
Aug 10, 2026182.5
Aug 9, 2026182.3
Aug 8, 2026182.9
Aug 7, 2026183.1
Aug 6, 2026183.1
Aug 5, 2026183.0
Aug 4, 2026182.5
Aug 3, 2026182.5
Aug 2, 2026182.1
Aug 1, 2026182.2
Jul 31, 2026181.9
Jul 30, 2026181.5
Jul 29, 2026181.5
Jul 28, 2026181.3
Jul 27, 2026181.2
Jul 26, 2026181.0
Jul 25, 2026180.8
Jul 24, 2026180.5
Jul 23, 2026180.2
Jul 22, 2026180.0
Jul 21, 2026179.9
Jul 20, 2026179.7
Jul 19, 2026179.5
Jul 18, 2026179.3
Jul 17, 2026179.3
Jul 16, 2026179.4
Jul 15, 2026179.4
Jul 14, 2026179.2
Jul 13, 2026179.0
Jul 12, 2026178.8
Jul 11, 2026178.9
Jul 10, 2026178.8
Jul 9, 2026178.6
Jul 8, 2026178.6
Jul 7, 2026178.5
Jul 6, 2026177.8
Jul 5, 2026176.8
Jul 4, 2026176.7
Jul 3, 2026176.6
Jul 2, 2026176.5
Jul 1, 2026176.7
Jun 30, 2026176.5
Jun 29, 2026176.3
Jun 28, 2026175.6
Jun 27, 2026175.4
Jun 26, 2026175.3
Jun 25, 2026174.9
Jun 24, 2026175.1
Jun 23, 2026175.5
Jun 22, 2026175.1
Jun 21, 2026174.2
Jun 20, 2026174.1
Jun 19, 2026173.9
Jun 18, 2026173.8
Jun 17, 2026174.1
Jun 16, 2026173.6
Jun 15, 2026173.4
Jun 14, 2026173.0

01The movers

Grotle 164/162 from Temporal Forces led the gainers, climbing 27.1% to $18.97. Unfair Stamp (+23.9%) and Riolu (+18.7%) followed.

On the other side, Team Rocket's Houndoom 191/182 (Destined Rivals) lost 19.6% to $10.28.

The modern cards (≥ $10) that moved most over the week.

See today's full list

02Sets: who led, who lagged

Among modern sets, 151 was the strongest (+1.0%) and Ascended Heroes the weakest (−3.8%); 21 of 22 finished the week lower.

7-day change of each modern set's chain-linked index (new listings don't move it).

See today's full list

03Eras

Across eras, Black & White led (+2.2%) while Mega Evolution lagged (−10.7%).

How each era's index moved over the week.

  • Black & White +2.2%
  • Diamond & Pearl / Platinum +2.1%
  • WOTC (1999–2003) +1.9%
  • EX +0.9%
  • XY +0.6%
  • Sun & Moon +0.5%
  • HeartGold & SoulSilver +0.5%
  • Sword & Shield −0.1%
  • Scarlet & Violet −0.6%
  • Mega Evolution −10.7%
See today's full list

04Value buys spotted this week

2 cards ended the week at least 15% under their 30-day average; the deepest discount was M Mewtwo EX (BREAKthrough) at $40.26, 25.2% below it.

Cards ≥ $20 trading at least 15% under their 30-day average on the report day, two days running.

  1. M Mewtwo EX 063/162BREAKthrough · Normal$40.26−25.2% vs 30-day avg
  2. Hitmontop 003/075Neo Discovery · 1st Edition Holo$161.44−21.0% vs 30-day avg
See today's full list

05Sealed

In sealed product, Mega Evolution Half Booster Box moved +25.0% to $313, the biggest swing among booster boxes, ETBs, bundles and premium collections.

Booster boxes, ETBs, bundles and premium collections that moved most.

  • Mega Evolution Half Booster BoxMega Evolution$250.00 → $312.50+25.0%
  • Perfect Order Elite Trainer BoxPerfect Order$69.65 → $61.31−12.0%
  • Chaos Rising Booster BoxChaos Rising$176.92 → $197.90+11.9%
  • Chaos Rising Elite Trainer BoxChaos Rising$69.16 → $62.05−10.3%
  • Silver Tempest Pokemon Center Elite Trainer Box (Exclusive)Silver Tempest$371.42 → $401.89+8.2%
See today's full list

06Graded market

36,559 graded cards sold this week for $15.7M in total, 63% of them PSA slabs.

The biggest sale in line with its past year was a PSA 10 Dark Espeon 004/105 at $78,000.

36,559 graded sales this week; 63% were PSA slabs. Total sold: $15.7M

Biggest sale in line with that slab's past year:

Dark Espeon 004/105PSA 10 · Neo Destiny · September 7, 2026$78,000
See today's full list

07Most valuable cards on the day

A 0% move often means no recent sales, not a steady price.

  1. Latias & Latios GX 170/181Team Up · Normal$4,2720.0%
  2. Umbreon VMAX 215/203Evolving Skies · Holo$2,368+3.0%
  3. Mew ex 158/12830th Celebration · Normal$1,978−40.7%
  4. Umbreon ex 161/131Prismatic Evolutions · Holo$1,423−1.3%
  5. Rayquaza VMAX 218/203Evolving Skies · Holo$1,2550.0%

How this report is made

Every number comes from daily TCGplayer market prices (near-mint, USD) stored by Tallgrass, as of the report day — nothing here uses data from after that date. The market index is chain-linked and value-weighted across every English card's regular printing, so new listings don't move it. Movers cover Scarlet & Violet and Mega Evolution cards worth at least $10 at both ends of the week that actually traded during it. Graded sales are eBay and Fanatics Collect sold listings.

Frequently asked questions

Is the Pokémon card market up or down the week of September 12, 2026?

Up. The Tallgrass market index moved +0.5% over the week to September 12, 2026 and +4.7% over 30 days. Among modern cards, 628 rose and 809 fell.

What was the biggest Pokémon card gainer the week of September 12, 2026?

Grotle 164/162 from Temporal Forces (Holo) rose +27.1%, from $14.92 to $18.97, among modern cards worth at least $10.00.

Which Pokémon TCG set performed best the week of September 12, 2026?

151 led modern sets with +1.0%; Ascended Heroes was the weakest at −3.8%. Set changes use each set's chain-linked index.

What was the biggest graded Pokémon card sale the week of September 12, 2026?

A PSA 10 Dark Espeon 004/105 (Neo Destiny) sold for $78,000 on September 7. 36,559 graded cards sold that week in total.

How often is the Tallgrass market report published?

Every Saturday. Each report only uses prices up to its date; when a price is corrected later, past reports are refreshed so they always agree with the charts.

Where do these Pokémon card prices come from?

We gather market data from a variety of APIs every day, then clean, cross-check and interpret it: near-mint market prices (USD) based on TCGplayer sales, and graded sales from eBay and Fanatics Collect sold listings. Prices are estimates, not offers, and nothing here is financial advice.

TCGplayer market prices (near mint). Movers, breadth and set changes cover Scarlet & Violet and Mega Evolution sets, cards worth at least $10 on both dates (older cards trade too rarely for a week's move to mean much). Most valuable covers every era.