[PYTHON] Quantopian Tutorial LESSON 8

This is a continuation of Last time.

LESSON 8 Your Portfolio and Plotting Variables

context.portfolio It is a context object that was used like a receiver of global variables so far, but aportfolio object is prepared under it. This object contains various information (property) about the portfolio.

Properties	Contents
capital_used	Cash consumed by the transaction
cash	Cash remaining in the portfolio
pnl	Realized P / L and Unrealized P / L
positions	All open positions keyed by security ID
portfolio_value	Total of cash and open positions
positions_value	Total open positions
returns	Cumulative P & L for Positions (10% return is 0.1)
starting_cash	Initial capital
start_date	Start Date and Time (UTC), the date and time when the algorithm was executed for live trading

The code below closes all the positions you own.

for security in context.portfolio.positions:
    order_target_percent(security, 0)

Plotting Variables By using the record () function, you can graph the data you want to record. Up to 5 types of data can be recorded (plot).

The code below executes AAPL longs and SPY shorts by 50% each daily, and records the cash used and the remaining cash using the recode () function at the daily close. [^ 1]

def initialize(context):
    context.aapl = sid(24)
    context.spy = sid(8554)

    schedule_function(rebalance, date_rules.every_day(), time_rules.market_open())
    schedule_function(record_vars, date_rules.every_day(), time_rules.market_close())

def rebalance(context, data):
    order_target_percent(context.aapl, 0.50)
    order_target_percent(context.spy, -0.50)

def record_vars(context, data):
    record(capital_used=context.portfolio.capital_used,
           cash=context.portfolio.cash)

[^ 1]: Changed Original Tutorial Code.

LESSON 7<-->LESSON9