Track 01Module 1 of 58 sources
The auction and the order book
Explain how a limit order book matches orders, what the spread pays for, and why price moves when liquidity is consumed.
Key ideas
- Every market is a continuous double auction. Limit orders supply liquidity and wait. Market orders demand liquidity and pay the spread.
- Price does not move because of more buyers than sellers. Every trade has both. It moves when aggressive orders exhaust the resting orders at a level.
- Markets alternate between balance, where price rotates around a fair value area, and imbalance, where one side lifts price to find new sellers or buyers.
- The spread is the market maker's fee for two risks: holding inventory and trading against someone better informed.
Start hereWatch or read these first. They carry the core idea.
Auction Market Theory Explained in 20 Minutes (How Pros Read Market Context)
Video · Trader Drysdale · 19:00
Value area, balance and imbalance in twenty minutes. This is the mental model the rest of the track builds on.
Lecture 6: Limit Order Book Markets (Financial Markets Microstructure)
Video · economification · 1:20:36
A university lecture that builds the limit order book from first principles: priority rules, spread and depth.
What are HFTs and How Do They Make Money? | In The Money by Zerodha
Video · In The Money by Zerodha · 24:54
Who sits on the other side of your order in India, and how high-frequency firms earn the spread.
CoreThe standard references. Work through them once the idea is clear.
Book
Trading and Exchanges: Market Microstructure for Practitioners
Larry Harris
The standard practitioner text. Read the chapters on order types, market structures and the taxonomy of traders.
Paper
Limit order books
Gould, Porter, Williams et al. · 2013 · Quantitative Finance · doi:10.1080/14697688.2013.803148 · free copy
A survey of what real order book data show. Use it as a map of the stylised facts before reading individual papers.
Book
Mind Over Markets
James F. Dalton
Market Profile from its best teacher. Shows how to read a whole session as an auction.
Go deeperResearch, primary sources and data for when you want the detail.
Book
Markets in Profile
James F. Dalton, Robert Bevan Dalton, Eric Thomas Jones
Extends profile to longer timeframes and to how different participants behave around value.
Paper
High frequency trading and the new market makers
Menkveld · 2013 · Journal of Financial Markets · doi:10.1016/j.finmar.2013.06.006
Evidence that the modern market maker is a high-frequency trader, with numbers on how it manages inventory.
Practice
Open market depth for one liquid NSE stock at 9:15. Write down the spread and the five best levels on each side. Note what happened to them in the first five minutes.
See it live
Where this leads
01.2 · Order Flow and MicrostructurePrice impact and informed flowUnderstand why size moves price, why the cost of size grows slower than size, and how market makers detect dangerous flow.07.1 · Indian Market StructureSessions, settlement, indices and taxesKnow the trading day, how trades settle, how the indices are built and what trading costs after tax.