TTU152: Where is the Open? ft. Toby Crabel
Top Traders Unplugged
Generalization vs Optimization
Toby favors generalized, robust strategies over over-optimized models and recounts his 1990s portfolio design.
Markets are not stable systems. They evolve, adapt, and quietly erode the edges traders rely on. In this episode, Toby Crabel reflects on decades of experience navigating that reality, from the early days of Opening Range Breakout strategies to today’s fragmented and highly competitive landscape. He explains why momentum behaves differently now, how liquidity has shifted across sessions, and why execution has become a defining edge. The conversation also explores the limits of AI, the persistence of technical principles, and the importance of adapting without overfitting. At its core, this is a discussion about humility, uncertainty, and staying relevant as markets change.
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Episode Timestamps:
00:00 - Markets are probabilistic and inherently uncertain
01:40 - Introduction to Toby Crabel and his career
03:01 - From tennis to trading and early market exposure
06:10 - Opening range breakout and early momentum edge
08:04 - Why momentum strategies have deteriorated over time
14:21 - The disappearance of the “open” in modern markets
17:53 - Are markets changing or just the participants
20:34 - Liquidity events and large player behavior
24:14 - The role and limits of technical analysis
32:44 - Model decay and adapting systematic strategies
39:17 - Execution as a primary source of edge
40:40 - AI, automation, and the future of trading
51:18 - Effort vs result and the meaning of volume
56:56 - Are we entering a 1970s style macro regime?
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