This week on From Scratch:

Brad KatsuyamaIEX is an alternate trading platform whose mission is to ensure fair trading in the US equity capital market system. IEX was launched specifically to counter the behavior of high frequency traders who take advantage of the information arbitrage made possible by electronic trading. Prior to starting IEX, Brad worked at Royal Bank of Canada where he first discovered the market imbalance generated by certain high frequency traders. Brad and IEX are featured in Michael Lewis’ book, Flash Boys, about high frequency trading.

Brad speaks with Jessica about how he launched IEX, from scratch.

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Marc DaCostaEnigma is a company that uses the internet to make public data available and understandable to users. Enigma links across various databases to uncover relevant facts that a user might not notice by looking at a single data set. The universe of data sources to choose among includes SEC filings, public health records, government spending contracts, sales tax receipts , among several others.

Marc speaks with Jessica about how Enigma is making public data more accessible, from scratch.

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