Then he found a dog-eared copy of "Higher Probability Commodity Trading- A Comprehensive Guide to the Universe of Commodity Futures" buried in a used bookstore near the Board of Trade.

One October evening, with winter natural gas inventory reports due at 10:30 AM, Marcus saw something rare: eight of his ten high-probability signals blinking green. Storage builds were below average. Weather models showed a polar vortex forming. Open interest was rising without price exhaustion.

The book wasn’t about certainty. It was about edge .