Mark Beylin

oscar Verified account @oscar_lvy · 6d

Today marks the biggest milestone to date for @river_markets.

Our affiliate River Finance LLC became a CFTC-registered futures commission merchant and NFA member, completing the fastest FCM registration in the Commission’s recent history.

When I landed in San Francisco four years ago, to study at Berkeley, I met Antonin. We became friends by trying things together: poker, trading Japanese stocks overnight, even selling notebooks on Amazon. Not all of it worked, but we kept building.

After Berkeley, I went to BlackRock and Antonin went into high-frequency options trading. We stayed close and started trading prediction markets on nights and weekends. As our trading grew, we kept running into the same problem: separate exchange connections and pools of capital made it hard to act quickly, even when we saw opportunities.

That experience led us to start River Markets. We’re building toward one place where institutional traders can find liquidity, understand their positions and exposure, and deploy capital across every exchange and clearinghouse, around the clock.

From day one, our goal has been to give institutional capital a regulated path into frontier asset classes. River Finance’s FCM registration brings us closer to that goal, giving us a 24/7 brokerage foundation to build on alongside the execution and risk technology our customers already use.

I’m grateful to our team, our customers and investors who have trusted us to build it.

This is day one.

View quoted post on X

based16z Verified account @based16z · Nov 6

2026 economy makes sense once you understand that a “business” is a marketing function to sell equity and debt, rather than a firm selling products and services to earn profits

View quoted post on X