> MARKET MICROSTRUCTURE 101: The Single Book That Explains Everything

Grok Expert Mode just identified the ONE book every trader needs to read:

Trading and Exchanges: Market Microstructure for Practitioners by Larry Harris (former SEC chief economist).

This explains HOW markets actually work from the inside:
- Order flow and why your market orders get picked off
- How market makers profit from retail traders (hint: PFOF)
- Dark pools and internalization
- Informed vs uninformed traders
- Why some participants consistently win

Then layer on SpotGamma for the modern options-dealer gamma layer.

3 things you can do TODAY:
1. STOP using market orders. Use limit orders inside the NBBO. This alone improves win rate 5-15pct.
2. Read order flow (time and sales + Level 2) for institutional intent. Absorption = buyers stepping in. Exhaustion = weak hands.
3. Check GEX levels daily. Positive gamma = pinning, low vol. Negative gamma = vol amplifies. This is why SPX seemed glued to certain strikes.

The edge is not a better indicator. Its understanding the plumbing.

Source: BBobop Oracle Intelligence