River Markets GTM brain

River Markets provides professional prediction-market desks with cross-venue execution, data and prime brokerage services.

category

Prediction market prime brokerage

market profile

  • text: Institutional participants must reconcile separate event-contract venues, liquidity pools and APIs.
  • text: Prediction markets are attracting hedge funds and prime brokers as venues seek institutional liquidity.

personas

  • title: Head of trading at a hedge fund or prop firm
    pains:
    • Fragmented liquidity creates execution and reconciliation work
    • Needs consolidated positions, controls and reliable order types
  • title: Quantitative trader or trading infrastructure engineer
    pains:
    • Venue-specific schemas slow research and deployment
    • Maintaining multiple API connections diverts time from models
  • title: Fund allocator or risk manager
    pains:
    • Hard to compare trader performance or trace P&L to individual positions
    • Needs position limits and investor-ready reporting

icp

  • text: Hedge funds, proprietary trading firms and sports funds trading event contracts across venues.
  • text: Institutional desks with quantitative strategies, trading APIs and a need for consolidated risk or external financing.

message pillars

  • text: Unify execution and portfolio visibility across venues.
  • text: Let traders focus on strategy instead of maintaining infrastructure.
  • text: Normalize market data for research and pricing.
  • text: Support managers evaluating and supervising traders.

objections

  • objection: We can connect directly to each venue.
    response: Compare the engineering and reconciliation burden against one API and cross-venue order management, using a concrete workflow demo.
  • objection: A broker adds execution and regulatory risk.
    response: Review routing, venue coverage, fees, eligibility and the registered affiliate's terms with compliance before committing capital.
  • objection: We already have internal risk controls.
    response: Show how subaccount permissions, position limits and attribution can complement existing controls.

competitors

  • name: Kairos
    website: https://kairos.trade/
    why: Cross-venue prediction-market trading terminal for serious traders.
  • name: Marex
    why: Institutional futures broker building connections to prediction markets.
  • name: PolyRouter
    why: Unified prediction market data API competes for data infrastructure budgets.

keywords

  • prediction market prime broker
  • Kalshi Polymarket unified API
  • prediction market smart order routing
  • institutional prediction market trading
  • prediction market historical data
  • event contracts risk management

voice

  • Institutional and technical
  • Direct and execution focused
  • Quantitative

signals

  • text: A prop firm is launching event-contract strategies across Kalshi and Polymarket.
  • text: A fund is hiring prediction market traders or building a cross-venue execution stack.

stack

  • REST
  • WebSockets
  • Python SDK

hiring

  • Institutional GTM lead
  • Engineering roles

pricing

model: unknown

motion

sales_led

channels

  • LinkedIn
  • YC directory
  • institutional outbound
  • research content

confidence

medium

Founders

  • name: Oscar Levy
    title: Founder/CEO
    role: CEO
    bio: Co-Founder at River Markets. Previously quant at BlackRock managing models trading $6B, Sandbar Asset Management ($2B AUM hedge fund). MA Financial Engineering from UC Berkeley.
  • name: Antonin Parrot
    title: Founder/CTO
    role: CTO
    bio: Co-founder of River Markets, the prime broker for prediction markets. I have a background in engineering and CS, and I've been working as a quant at a high frequency option market making trading shop.

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