Access the orderbook

First, run the backtesting.

from empyrial import empyrial, Engine

portfolio = Engine(
      start_date = "2018-01-01",
      portfolio = ["BLK", "BAC", "AAPL", "TM", "JPM","JD", "INTU", "NVDA", "DIS", "TSLA"],
      optimizer = "EF",
      rebalance = "1y", #rebalance every year
)

empyrial(portfolio)

Then, run:

empyrial.orderbook

Output