Resented elsewhere, Mifid finds love at Esma

Huge cache of data helped Esma spot market abuse and inform policy, head of market data policy says

Olga Petrenko
Olga Petrenko, European Securities and Markets Authority
Photo: Esma

Is there ever such a thing as too much data, a point at which the avalanche of digits overwhelms any rational purpose?

“In 2019, speaking about too much data is like speaking about too much air,” says Olga Petrenko, senior officer on the market data policy team at the European Securities and Markets Authority (Esma). “Nowadays, life is data.”

That sweeping view may partly explain why she sees tremendous advantage to Mifid ll, the generally disliked Markets in Financial Instruments Directive,

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