Holon Research Tower (HRT) carries a total slabbed market cap of $34.5M as of Nov 13, 2026. TCGBerg tracks a fair value for 514 card and grade combinations in the set. Kyogre Star #28 · PSA 10 anchors the set at 14.1% of its total cap.
Historical context
Released in 2005 as a JA release.
Market overview
Cap is concentrated: the largest card-grade position is 14.1% and the top 5 make up 47.4% of set cap. The set's cap-weighted fair-value confidence is low (23/100). It has seen 227 graded sales over the trailing 30 days.















![Ditto [Bulbasaur] #7](https://images.tcgberg.com/images/pokemon/holon-research-tower-jp/spec/48720/front-6f25b51c_w256.webp)
![Ditto [Bulbasaur] #7](https://images.tcgberg.com/images/pokemon/holon-research-tower-jp/spec/48719/front-574f9ce0_w256.webp)








![Ditto [Charmander] #12](https://images.tcgberg.com/images/pokemon/holon-research-tower-jp/spec/48730/front-34ab5146_w256.webp)
![Ditto [Charmander] #12](https://images.tcgberg.com/images/pokemon/holon-research-tower-jp/spec/48729/front-34ab5146_w256.webp)






















![Ditto [Squirtle] #24](https://images.tcgberg.com/images/pokemon/holon-research-tower-jp/spec/48754/front-d6bd63ed_w256.webp)
![Ditto [Squirtle] #24](https://images.tcgberg.com/images/pokemon/holon-research-tower-jp/spec/48753/front-40b7f3c8_w256.webp)















![Ditto [Pikachu] #33](https://images.tcgberg.com/images/pokemon/holon-research-tower-jp/spec/48772/front-d4785a75_w256.webp)
![Ditto [Pikachu] #33](https://images.tcgberg.com/images/pokemon/holon-research-tower-jp/spec/48771/front-a1973767_w256.webp)
























![Ditto [Mr. Mime] #46](https://images.tcgberg.com/images/pokemon/holon-research-tower-jp/spec/48798/front-10f6baec_w256.webp)
![Ditto [Mr. Mime] #46](https://images.tcgberg.com/images/pokemon/holon-research-tower-jp/spec/48797/front-10f6baec_w256.webp)












![Ditto [Geodude] #53](https://images.tcgberg.com/images/pokemon/holon-research-tower-jp/spec/48812/front-26482b44_w256.webp)
![Ditto [Geodude] #53](https://images.tcgberg.com/images/pokemon/holon-research-tower-jp/spec/48811/front-26482b44_w256.webp)































































