On June 14, 2026, VolRoc recorded 214,656 active prediction markets across Kalshi and Polymarket, holding $2.11B in combined open interest. Day over day, active markets rose 25.0% and open interest rose 7.2% (vs June 13, 2026). Sports was the largest domain by open interest (54%), ahead of Politics & Elections (18%); together they accounted for 73% of all open interest. Kalshi carried 96% of active markets and Polymarket 4%.
Deterministic · template v1 · 2026-06-14
As of 2026-06-14 · 00:00 UTC
Active Markets
214,656
00:00 UTC freeze
Open Interest
$2.11B
Kalshi OI + Polymarket liquidity
Markets Traded · 24h
14,587
with trading activity
Kalshi / Polymarket
96% / 4%
by active-market count
Domain Composition — 12 domains
Sports
160,095
Mixed / Multi-category
31,226
Other
12,567
Politics & Elections
5,576
Entertainment & Culture
2,154
Crypto & Digital Assets
943
Economics & Inflation
691
Companies & Business
422
Monetary Policy
392
Technology & AI
284
World & Geopolitics
153
Climate & Weather
83
Science & Health
70
Venue-agnostic subject taxonomy from Kalshi series prefixes and
Polymarket title keywords. A residual Other bucket is reported honestly.
Yes-price across both venues, 10 buckets from 0 to 100. n = 214,656.
Largest Kalshi Series
Sports — multi-game parlays
148,211
Cross-category multi-markets
31,226
Music — artist streams
854
Midterm control
740
U.S. House races
600
Wctotal
318
Wcstageofelim
262
Wcteamtotal
252
NFL — next team moves
251
California primaries
238
Nextteamnba
227
Pgatour
205
Kalshi market families (Polymarket is not series-structured).
About & Citation
This is the fixed-hour (00:00 UTC) state of every active market on
Kalshi and Polymarket for June 14, 2026. The live
Observatory
shows the current diurnal value; this record is immutable. Open interest combines Kalshi
open interest with Polymarket USD liquidity as comparable USD magnitudes. Sources: Kalshi, Polymarket.
How to cite
“VolRoc Prediction Market Archive — June 14, 2026.” https://volroc.ai/prediction-markets/2026-06-14/
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