JKIndex.io

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@JKIndex_

Before the Slab.
TCG grading prediction markets
Guess the grade. Back your conviction.
Pokémon • One Piece • Riftbound
Backed by @SuperteamBLKN @Colosseum

discord.gg/jk-index jkindex.io/before-the-slab Joined November 2025

127 Following 1.9K Followers 4.1K Posts

Latest posts 5

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JKIndex.io @JKIndex_ Oct 16

We’re teaming up with @robinsongz for Riftbound deck talk, BTS Blitz, and a closer look at Ahri before she gets graded!

Think you can beat Robin?

Get a first look at the campaign 👇

robinsongz Verified account @robinsongz Oct 16

I’m teaming up with @JKIndex_ for a Riftbound stream very soon. We're going to go through my deck, guess card grades in BTS Blitz, and check out the Ahri Before the Slab event! More details coming soon. #ad

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JKIndex.io @JKIndex_ 2h

Riftbound deck building is live on JK Index.

Paste a list or copy one of 44 reviewed decks, pick your printings and see what it costs, card by card.

Then share a link anyone can open.

Find it below 👇

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JKIndex.io @JKIndex_ 6d

Radiance is now live on JK Index ✨

All 240 cards from Riftbound's fifth set, with last sold prices and price history updated daily.

Radiance cards can also now get Before the Slab events, with deck building coming soon!

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JKIndex.io @JKIndex_ Oct 28

Queues will go back up

The positive is, you can still hedge the final outcome

Only on the JK Index

PSAcard Verified account @PSAcard Oct 28

We’re excited to announce that Value is coming back, starting October 29 at 8 am PT for $39.99. Plus, Standard and Priority estimated turnaround times are getting faster. Learn more: psacard.click/Value-Opening-x

New Value orders will be processed after existing orders. This will not affect estimates for orders in line.

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JKIndex.io @JKIndex_ Oct 18

Market Pulse is live 📈

Keep a pulse on the card market across Pokémon, One Piece and Riftbound

What’s hot, what’s not, the week’s biggest sales and the JK Market Index, updated daily

Link 👇

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