The Academy
Nightglass Academy — the full interactive course
Ten sections from raw tape to synthesis: direction classification, confidence filters, structure detection, and gamma exposure — with quizzes, hands-on exercises, a 48-term glossary, and a final exam. Free, no signup.
Guides
What is options flow?
The tape, explained: what flow data is, where it comes from, and what it can and cannot tell you.
How to read options flow
Sweeps, blocks, premium, volume vs open interest, aggressor side — a working guide to reading prints.
Sweep vs block
Two ways size reaches the tape, and what each one says about urgency and intent.
Institutional options flow
How desks actually print, why size can’t fully hide, and what following it can and cannot do.
Gamma exposure (GEX)
Why market makers hedge, what positive and negative gamma do to a tape, and how to read the levels.
The mistakes that cost money
P/C ratios read backwards, spread legs taken alone, sweeps traded on sight — and the correct reads.
The measurement
How signals are scored
The full methodology behind the public track record — the yardstick, the exclusions, the uncertainty.
Everything Nightglass surfaces is scored on a public track record — winners and losers, methodology included. See the tape →