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TL;DR

Markov Chain Steady State via Eigenvalues: A canonical quantitative trading interview question at intermediate difficulty. Commonly asked at DE Shaw, Two Sigma, Citadel, Jane Street.

By Valenke Exam Prep Team·Last updated 2026-06-01
intermediateLinear Algebra & Optimization

Markov Chain Steady State via Eigenvalues

Asked at: DE Shaw, Two Sigma, Citadel, Jane Street

Problem
A particle moves between states A and B. At each step: - From A: moves to B with probability 0.3, stays at A with probability 0.7 - From B: moves to A with probability 0.4, stays at B with probability 0.6 Find the steady-state distribution. What fraction of time does the particle spend in state A in the long run?
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