Is the default capital_base for zipline set at 10 million?

[Simon Chan]

I have been running backtests and I see that if I print out the 'capital_base' for my algorithms, it is always set at 10 million.

def handle_data(context, data):
    print get_environment('capital_base')

Why is this the case and how do I change it to another number?

[Rich Frank]

That's right - it's the default defined in zipline. You can use a different value with the --capital-base argument to zipline run:

$ zipline run --help
...
  --capital-base FLOAT            The starting capital for the simulation.
                                  [default: 10000000.0]

(It's a bit out of date, but see also http://www.zipline.io/beginner-tutorial.html#command-line-interface)

[Simon Chan]

Thanks Richard. It worked.