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Union Arena

Market / Union Arena / Market report

As of Aug 29, 2026

Union Arena market index: 35.7, +0.81% over 7 days, tracked by Hoard as of Aug 29, 2026.

Index · last 90 days
35.7 +0.81% 7d
Market value
$110,860
of one of every product
Median price
$0.48
30d change
+4.88%
90d change
+13.67%
Tracked products
6,736
of 6,794 priced

Starts at 100. Higher means prices are rising, lower means they're falling — only cards priced on both days count, so gaps in data don't skew it.

Biggest 7-day set movers

Set Released Value Median 7d price Coverage
Jan 17, 2025 $132 $0.55 +18.83% 98%
Oct 31, 2025 $493 $24.87 +5.71% 100%
Sep 19, 2025 $65 $0.60 +4.44% 95%
Aug 1, 2024 $17,150 $2.11 +0.76% 95%
Jan 23, 2026 $256 $2.55 +0.31% 98%

See all set movers →

Most valuable sets

Set Released Value Median 30d price Coverage
Aug 1, 2024 $17,150 $2.11 +2.93% 95%
Jul 31, 2026 $8,984 $0.19 -2.6% 97%
Jan 30, 2026 $6,983 $0.21 -2.05% 100%
Jan 30, 2026 $5,563 $0.20 +6.51% 100%
Jun 26, 2026 $4,798 $0.31 +0.51% 100%

See all most valuable sets →

Common questions

Where does this data come from?

Hoard's own daily rollups of live TCGplayer market pricing across every tracked Union Arena product — not scraped or modeled from someone else's listings.

What counts as a biggest set mover?

The sets with the largest 7-day percentage change in their price index, up or down — ranked by the set's overall index, not any single card's price. A set needs at least two dated readings inside that window, and a real price above a few cents, to qualify — brand-new, thinly tracked, or bulk sets are excluded so a rounding-level move doesn't read as a market swing.

What does most valuable mean here?

Sets ranked by total market value: the sum of the current market price across every tracked product in the set, not any single card's price.

How often is this updated?

Once a day, alongside Hoard's overnight market rollup. The "as of" date on the page shows the last update.

Priced and tracked with Hoard. Docs · Connect via MCP