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Part 5·6 min read

Flow: where gamma is building right now

TL;DR

  • Flow reads fresh gamma across 1m/5m/10m/15m/30m and distills it to one bias: ▲ UP, ▼ DOWN, or ◆ PIN.
  • Sign convention: + = gamma building above price, − = below. Longer windows weigh more in the bias.
  • Use flow to time and qualify — PIN at spot means scalp-only chop; always sanity-check 30m against 1m.

Walls tell you the session’s structure. Flow tells you what’s changing — where fresh positioning is concentrating right now, over the last 1–30 minutes.

The three states (and only three)

The Flow panel — titled Flow — max change GEX — distills all the windows into one badge:

BadgeMeansPlain-English read
▲ UPFresh gamma building above spotAn upward pull. Favor longs; avoid shorts beneath it.
▼ DOWNFresh gamma building below spotA downward pull. Favor shorts; avoid longs above it.
◆ PINFresh gamma concentrating at spotPrice tends to stick and chop here; scalp only.

That’s the entire taxonomy — UP, DOWN, PIN. There’s no “build above/below” or “migrate” state; the whole point is to compress the noise into one usable bias.

How to read the table

Below the badge is a table with columns Win, Strike, Δ vs spot, and GEX Δ across the 1m / 5m / 10m / 15m / 30m windows. The footnote states the sign convention: “+ = gamma building above price, − = below. Longer windows weigh more in the bias.” So a positive Δ vs spot in the 30m window is a heavier vote than the same number at 1m.

Flow — max change GEX   ·   ◆ PIN
30m21,410   +2   +0.3B
5m21,408   −4   +0.2B
1m21,414   +6   +0.1B
Illustration. Small, mixed deltas across windows resolve to ◆ PIN — gamma sitting on spot, chop conditions. A run of same-sign deltas in the longer windows would resolve to UP or DOWN.

The value we add

Multi-window change detection with a classified state. You don’t eyeball raw deltas across five windows — we weight them (longer windows count more) and hand back the pattern and its typical behavior.

Correct use & expectations

Use flow to time and qualify, not to enter. PIN at spot → scalp conditions, don’t swing. Flow building toward a wall above → that wall is being attacked or defended. Always cross-check the 30m window against the 1m before trusting a shift — short windows are noisy by design. Flow answers “what changed since I last looked,” not “what happens next.”

Flow is also the tool that tells you when levels migrated — which matters a lot for the “why do my 0DTE levels keep moving?” question in Part 6.

Do this on the dashboard now

  1. Read the Flow badge: UP, DOWN, or PIN.
  2. If PIN, treat the session as scalp-only chop until it resolves.
  3. Check whether flow points toward a wall you marked — that’s the level in play.
  4. Confirm the 30m window agrees with the 1m before you trust a directional flow.
← PreviousGamma walls: call walls (resistance) & put walls (support)Next →0DTE vs Full: choosing your lens
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GEXmon is decision-support software, not financial advice. It describes options-market context and never a recommendation to buy or sell any instrument. Entries and exits come from your own method; you are responsible for your own trades.