NYSE Daily Trade Estimate - Quant Trader Interview Question
Difficulty: Medium
Category: Mental Math & Estimation
Practice quant interview questions from top firms including Jane Street, Citadel, Two Sigma, DE Shaw, and other leading quantitative finance companies.
Topics: fermi-problem, mental-math, estimation, trading-intuition
Problem Description
You are interviewing for a trading role at a high-frequency trading firm. During the interview, the interviewer asks you the following question:
"Estimate the number of trades executed on the NYSE in a typical trading day."
You know the NYSE typically trades between 2 and 5 billion shares daily. You also know that the average trade size varies but is generally thought to be between 200 and 1,000 shares.
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