Professor's Research [Professor Turo] - 190/198

Professor's Research #190/198 was printed 5 ways and each one sells separately: Promo Reverse Holofoil from Professor Program Promos $30.45; Rare Holofoil from Prize Pack Series Cards $0.38; Rare Reverse Holofoil from SV01: Scarlet & Violet Base Set $0.31; Rare Normal from Prize Pack Series Cards $0.17; Rare Holofoil from SV01: Scarlet & Violet Base Set $0.13 (TCGplayer market, 2026-10-27). Check the set, the rarity mark and any parallel foil, manga art or edition stamp on your copy to know which price is yours; TickerMint prices every printing on its own page.

Shops and show vendors commonly offer about 70% of market in cash and 80% in store credit. At today's $30.45 market price that is roughly $21 cash or $24 trade for a near-mint copy. Selling it yourself on TCGplayer or eBay nets more after fees; see the seller-net answer below.

Professor's Research [Professor Turo] - 190/198 [Reverse Holofoil] has a TCGplayer market price of $30.45 as of 2026-10-27.

Professor's Research [Professor Turo] #190/198 is trending down: $30.45 today, down 16% in 30 days and 40% below its all-time high of $50.49 (2024-08-15), but 2.7x its low of $11.48 (2025-09-22). TCGplayer market price as of 2026-10-27, tracked daily since 2024-07-12. Other windows: up 0.0% over 7 days, up 24.1% over 90 days, up 149.2% over a year. A 30-day drop this size is common after a reprint or a set rotation; the daily chart shows whether it has found a floor.

In TickerMint's daily data (since February 2024), the TCGplayer market price for Professor's Research [Professor Turo] - 190/198 [Reverse Holofoil] (all conditions) peaked at $50.49 (2024-08-15) and bottomed at $11.48 (2025-09-22).

Grading Professor's Research #190/198 does not pay even for a 10: PSA 10 copies are listed from $39.99 on eBay (eBay asks checked Sep 30, 2026) vs $30.45 raw (TCGplayer market), and after a $25 grading fee, $10 shipping and 13% selling fees a 10 nets nothing, less than the $26.49 a raw sale nets. That assumes a 9 or lower sells like a raw copy. "Listed from" is the lowest current PSA 10 asking price on eBay, not a sale, and asks can sit above what copies actually sell for. Whether your copy grades a 10 depends on its centering, corners, edges and surface.