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Paddock Ledger · Market intelligence for prediction markets

Know what your prediction market is missing.

The field is listing markets you are not, and it is costing you volume. Paddock Ledger maps the listings, prices and filings of every prediction market platform, so your markets team sees the gap every Monday.

API access →
From this week’s recordCFTC filings, Jul 24 to October 22, 2026; Kalshi, October 22, 2026
Esports trades on Kalshi every day. In 90 days, two exchanges filed to list it.
445Kesports contracts traded on Kalshi in one day
51new esports contracts filed with the CFTC in 90 days
2exchanges filed them. None of the others did
Plugged in

Every prediction market, in your AI.

Connect the record to Claude, ChatGPT or your own models and ask it what the field lists that you do not, where your prices are off, and what was filed this week. Or just read the report we send every Monday.

THE FIELD Every platform, every market THE RECORD One complete record WHERE IT GOES Your AI, your inbox, your stack CFTC daily filings Every exchange, a day before listing The two leaders Kalshi · Polymarket US Mid-size exchanges Novig · ProphetX · Gemini New and small platforms Rothera · DKeX · ForecastEx and more Brokers and apps Public · Webull · the tribal apps Paddock Ledger EVERY MARKET Listings Books Settlement Your AI MCP Claude, ChatGPT or your own models, over MCP. The Monday report One report per platform. The gap, the filings, the price line. API access The record itself, queryable. Enterprise terms. Public order books, public APIs and the CFTC's daily filings. Paddock does not trade, route orders or hold funds.
Why Paddock

Two platforms have depth.
Everyone else is fighting for liquidity.

A better price only wins on a market you list. Paddock shows you the ones you do not, and what they trade. No platform can see that from inside.
$77.7Btraded in one month across the US platforms Paddock records. Shift Markets, September 2026.
15platforms in the record, every listed market, every order book.
1 daybefore a rival listing goes live, the CFTC filing is already in the record.

“There’s palpable demand for it, to train models and study liquidity.”

Andy Ross, Head of Institutional at Kalshi, on order-book data the largest platform had not yet built. A-Team Insight, July 2026.
The leader is still building its own record. Nobody inside the field holds the field’s.
Paddock collects it from every platform, and keeps all of it.
What you get

Three questions. Answered every Monday.

What is the field listing that we are not?

The markets with the most rival volume that you do not list. Combos excluded, so the volume is real.

What did every exchange file this week?

Everything filed with the CFTC last week, by category. Your gaps flagged a day before they go live.

Where are our prices off the field?

Your mid against the field on matched markets. What sat off by a cent for an hour, and which.

Delivered:The Monday report, by emailTo your AI over MCPOver the API, enterprise terms
Who it is for

Built for new exchanges, brokers and apps.

New exchanges

A listing plan on day one, not a data team in month nine.

Brokers and apps

You choose which of one exchange’s markets your users see. See the whole field first.

Pending applicants

Start from the field’s listing record before you list a contract.

What it replaces

The leaders hire for this.
You do not have to.

Polymarket · Senior Data Scientist, MarketsTrack competitive listing coverage to assess where our catalog is thinner than the competition’s.
Kalshi · Market OperationsIdentifying potential use cases and markets to launch.
Polymarket, one analystBase salary. Equity and benefits on top.
Kalshi, one analystBase salary. Equity and benefits on top.
Paddock Ledger, per platformNo hire. No data to build.
Paddock Ledger: a fraction of one hire
Cost per year
$0$100K$200K$300K
From the companies’ public job postings.
The record

Every platform. Every market. On the record.

The Monday report is one reading of it. The record itself, listings as they are filed, books as they move, settlements as they land, is queryable by API.

Listings

Every contract filed, pulled or amended, from the CFTC’s daily Rule 40.2 filings.

Books

Top-of-book on every platform, depth where exposed, aligned across platforms.

Settlement

Settlement time, disputes and rule changes per contract, on every platform that listed it.

For platforms, desks and research teams. Enterprise terms.

Every platform. One page each. Updated daily.

NovigDCM · sports
Gemini PredictionsDCM
ProphetXDCM · sports
RotheraDCM · Robinhood, Susquehanna
DKeXDCM · DraftKings
ForecastExDCM · Interactive Brokers
CDNADCM · Crypto.com
PublicBroker on Kalshi
Method

How the report is made.

Public sources only. Order books, public APIs and the CFTC’s daily filings.
Every number is dated. Source and pull date on each one. Combos excluded from volume.
Your report is yours. Never shared with another customer.
Data, not advice. Paddock does not trade, route orders or hold funds.