IDMM Market Structure Heat Map — October 1, 2026 | MidDay

Today's ETF structure is showing substantially more participation on the MS side through noon.

ML STRUCTURE

- ML1 Reached: 12

- ML1 ≥ Open: 10 / 12 (83.3%)

- Currently ≥ ML1: 10 / 12 (83.3%)

MS STRUCTURE

- MS1 Reached: 23

- MS1 ≤ Open: 19 / 23 (82.6%)

- Currently ≤ MS1: 15 / 23 (65.2%)

REVERSALS

- ML/MS Reversals: 3

OIH, FXI, MDY

Several ETFs have extended beyond the first structural level. SPY, QQQ and DIA have each moved from MS1 into the MS2 area, while EWZ has extended below MS3.

The Heat Map is designed to provide a breadth view across the 67-ETF universe: not simply whether price is up or down, but where each instrument is trading relative to predefined structure anchored to the session Open.

Later today I'll post several individual Intraday Structural Observer charts to show how the aggregate Heat Map can be examined at the individual-session level.

Measure the population. Then inspect the observations.

Levels are calculated from the opening price and are dependent on the underlying data source.

Live/intraday data is provisional and may vary by provider. For research and educational purposes only.