
Chat With Traders 310 · Dr. Efrat Levy - Fingerprinting the Big Players: Inside the Hidden Order Flow
Oct 30, 2025
Dr. Efrat Levy, a cybersecurity researcher with a PhD in Computer Science and AI, discusses her groundbreaking work in utilizing side-channel analysis to decode institutional trading behaviors. She introduces her unique approach to mapping non-repainting key levels that reveal hidden order flow. Dr. Levy shares insights on correlated market movements, risk-minimizing systems, and the importance of timing to reduce drawdown. Her advice on combining trading with programming skills emphasizes how data and strategy discipline can enhance market analysis.
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Hidden Order Flow Reveals Intent
- Markets reveal hidden intent through timing, volume behavior, and order-flow anomalies rather than price alone.
- Dr. Efrat Levy calls these indirect signals "hidden order flow" and uses them as a foundation for her system.
Avoid Repainting Indicators
- Avoid repainting indicators because they adjust after the fact and mislead live trading.
- Use fixed key levels generated ahead of time to ensure signals are actionable in real time.
Single-Tick Levels Beat Wide Zones
- Single-tick key levels pinpoint where statistical imbalances between buyers and sellers exist.
- Dr. Levy intersects these levels across correlated instruments to raise trade probability.
