GRAYBOOK CAPITAL
What we do
We capture opportunities on exchanges around the world with automated strategies. Here is how each part of the firm makes that work.
Trading
Our traders design, run and refine automated strategies across futures, options and equities. Every strategy starts as a hypothesis, is tested against years of data, and earns its capital in live markets one step at a time.
Technology
We build the whole trading stack ourselves: feed handlers, signal engines, risk checks and order gateways, on hardware we tune and colocate beside the exchanges with Graybook Technologies. Engineers own their systems from the first commit to the market open.
Research
Researchers turn market data, order-book dynamics and alternative data into signals, then try hard to break them before they ever trade. With Graybook Labs we bring language models and machine learning to research, under the same rules as every other idea.
Risk
Every order passes pre-trade checks in microseconds; every position is watched in real time; every strategy has limits it can’t talk its way out of. Risk and trading sit side by side, so the controls are built by people who understand the strategies.
The trading day starts in Sydney and ends in Chicago. Each market shows whether it’s open right now, in its own time zone (regular hours; holidays not shown).
What we trade
One order, end to end
From the moment a price leaves the exchange to the moment our order reaches it, each step runs on software and hardware we built, tested and own.
Engineering roles →Exchange feeds arrive at our servers in the colocation hall.
Packets are decoded and the order book rebuilt, in hardware where it counts.
Models read the book and decide what to quote or trade.
Every order is checked against its limits before it can leave.
The order is encoded in the exchange’s protocol and sent.
The matching engine fills it, and the loop starts again.
Traders, researchers and engineers sit together here. Pick where you start.