GRAYBOOK VENTURES

Graybook Ventures

Backing the firms that build how markets trade.

We back the founders building the next generation of trading technology, and put the whole Graybook group behind them: our platform, our infrastructure and our traders.

Why Graybook Ventures

One investor. Four ways in.

Most funds stop at the check. Ours comes with a trading group around it, and every part of it can work for your company from day one.

  1. CapitalWe write the first check, and the follow-on.
  2. PlatformYou build on the Graybook terminal, GBS and Vig.
  3. InfrastructureYou run on Graybook Technologies, beside the exchange.
  4. TradersYou reach the traders on Graybook Proprietary Trading.
See how we invest →
Your company at the centre, with capital, the platform, infrastructure and traders from the Graybook group around it CapitalVenturesPlatformGBS · VigInfrastructureTechnologiesTradersProp Trading Yourcompany

Graybook Ventures invests alongside the three companies of the Graybook group:

Funded trading accounts across indices, FX, energy and stocks, with Vig, our AI quant, built into the platform. The traders our portfolio companies build for.

Visit Graybook Proprietary Trading →

Trading systems on open-source engines, Quant VPS servers near the exchanges and HFT colocation beside the matching engine. The infrastructure our portfolio companies run on.

Visit Graybook Technologies →

[The parent company of the Graybook group, which owns the operating companies and Graybook Ventures and sets the group’s long-term direction.]

Our portfolio companies can work with all three. Choose a company above to learn more.

Two dark glass office towers side by side against a gray sky

What we bring

More than a check.

Every portfolio company gets the Graybook group behind it: the platform, the infrastructure and the traders.

  1. 01

    Capital

    Lead or co-lead checks from pre-seed to growth, with reserves to follow on when the business is working.

  2. 02

    The Graybook platform

    Early access to the trading terminal, the Script Editor, GBS and Vig, our AI quant, plus a direct line to the engineers who build them.

  3. 03

    Infrastructure

    Quant VPS and colocation from Graybook Technologies, so a portfolio company can trade beside the exchange from its first day.

  4. 04

    Distribution

    A route to the traders on Graybook Proprietary Trading, for products that make trading safer, faster or better informed.

How we invest →

Where we’re looking.

Six areas where better technology makes trading fairer, faster or safer, and where the Graybook group can help most.

Execution & market access

Order routing, smart execution and connectivity that take microseconds and basis points out of every fill.

Market data

Cleaner, faster and cheaper data: normalized feeds, tick storage, alternative data built for systematic traders.

Risk & compliance

Real-time risk, surveillance and reporting that let prop firms and brokers grow without growing their back office.

AI for traders

Research assistants, strategy copilots and coaching tools in the spirit of Vig, with numbers you can check.

Funded-trader firms

Prop firms and evaluation programs that want a modern platform, fair rules and payouts that work.

Developer tools

Backtesting, simulation and open-source trading engines that turn a research notebook into a live system.

From first email to a decision in weeks.

Founders hear back from a partner, not a form letter. Here is how it goes.

  1. 1

    Intro

    Send a deck or a one-pager. A partner reads every submission and replies within [5] business days.

  2. 2

    First call

    30 minutes on the product, the market and how Graybook could help, before any numbers.

  3. 3

    Platform fit

    Our engineers look at how you would build on or plug into Graybook. You meet the people you would work with.

  4. 4

    Decision

    Diligence, a term sheet and a yes or no within [4–6] weeks of the first call.

Building on Graybook? Making trading better? Let’s talk.

Send us a deck or a one-pager. A partner reads every one.

Pitch us →