Day 23: Equity Logic — Implementing the Equity Child Class
This lesson is about one of the most common ways autonomous trading systems break in production — not with a crash, not with an error message, but silently. You will build the
Equityclass, which is the layer that sits between a price signal and an order submission. It is the engine’s immune system. By the end of this lesson you will have a working, tested implementation running against Alpaca’s paper trading sandbox.
What You Are Building
Before we write a single line of code, look at where
Equitylives inside the engine. It is not the whole system — it is one node in a hierarchy, but it is the first node every order has to pass through.
