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Proof Reading

Proof is a new institutional equities broker.

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Daniel Aisen in Proof Reading

Dec 7, 2021

Building a Broker-Dealer: How Much Does it Cost?

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Daniel Aisen in Proof Reading

Mar 23, 2021

Building a Broker-Dealer: Vendors

We use a lot of vendors, but also not that many!

As part of our series on what it takes to build an institutional equities broker-dealer from scratch, here we present a list of all the vendors and partners we…

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Daniel Aisen in Proof Reading

Dec 24, 2019

Comment Letter in Response to IEX D-Limit Proposal

Last Friday, IEX submitted a proposal to the SEC to offer a new order type called Discretionary Limit, or D-Limit. If approved, this order type will allow participants to post displayed quotes that automatically back away when IEX believes…

Allison Bishop in Proof Reading

Oct 23, 2019

Why are there rebate tiers? And other bedtime stories …

Allison Bishop in Proof Reading

Jun 26, 2019

Market data pricing: part 3 of many

Previously on market data pricing, we discussed the top level framework of real-time market data…

Allison Bishop in Proof Reading

May 6, 2019

Market data pricing: part 2 of many

Previously on market data pricing, we laid out the many input variables that can affect the market data bills that broker dealers pay to stock exchanges to consume quote and trade data. In this episode, we will lay out the common high-level structure and principles…

Daniel Aisen in Proof Reading

Jan 28, 2019

Does low latency matter on the sell-side?

Agency brokers are simply not fast enough end-to-end to compete with the leading proprietary trading firms for the best fills.

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