Prediction market data discovery tools for researchers, reporters, and analysts.
Joined June 2026
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TickerTracker retweeted
Fascinating data from @Eric_Ramsey @TickerTracker_:
Combos with 20 or more legs at Kalshi went from 3.5% of the total in July to 17% in September, and the average combo contract went from 8 legs to 13 over that span.
About 10% of all combos traded in September settled Yes, a hit rate that falls to 2.7% for combos with 10+ legs and 1.5% for those with 20 or more. Across the combos with 100 or more legs, two have settled Yes and 5,272 settled No.
More in this morning’s Event Horizon.
The three NBA tipoff games on Tuesday night produced a combined $114 million in trading volume on Kalshi -- about as much as three typical NFL games.
OKC/SAS > PHI/NYK by a smidge.
🏆 Centipede Combo of the Week(™) on Kalshi
- 320 legs
- $0.16 to win $106 (~+65000)
- 26 misses (5 voids; 13 still open)
Saturday was another record day of volume for Kalshi and its first above $4 billion -- almost 20x bigger than the same Saturday last year.
TickerTracker retweeted
Polymarket US crypto volume doing well since 15-min up/down launch < 30d ago 📈
🏆 Centipede Combo of the Week(™) on Kalshi
- 453 legs
- $47 to win $1,462 (~+3000)
- 27 misses (7 voids; 28 still open)
- Lost before the 1 p.m. games kicked off
More than $10 billion was traded across tracked prediction market platforms this weekend -- up 11% from last weekend to a new two-day record.
Sydney Sweeney and a 21+ pledge: Novig’s fearless path to $2 billion (via @nextpredictio)
nextpredict.io/market-news/i…
Kalshi recorded a record $3.7 billion in Sunday volume and more than $7.1 billion for the weekend.
Sports + combos made up 91% of volume on both days.
Football trading Saturday + Sunday combined:
- Straight markets: $897 million (13% of total)
- Football combos: $3.1 billion (44%)
- Total: $4.0 billion (56%)
Football legs made up 63% of all combos for the weekend. Soccer was #2 at 14%.
About 8% of combo contracts had more than 20 legs.
TickerTracker retweeted
I do a weekly podcast about prediction markets at The Event Horizon, and I am terrible at sharing clips from. This week, talked PM volume with @Eric_Ramsey of @TickerTracker_. Available on Spotify and Apple Podcasts
Sunday on Kalshi: Another volume record at $3.04 billion, just a few bucks ahead of Saturday. It is the sixth time Kalshi has bested its own single-day record in September.
Rams/Broncos moves to #2 on the list of NFL regular-season games, behind only Colts/Chiefs in Week 2.
Kalshi set another single-day volume record yesterday, its second straight Saturday above $3 billion.
Sports + Combos were >90% of the total.
TickerTracker retweeted
Nah, Kalshi has a fee accumulator to prevent rounding-up from costing you more than 1c per market. So it's maybe losing $26.13/day not $432/day. Likely just someone farming volume for a higher rate limit tier if I had to guess!
