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Accessing Index Constituents...

General question: How can I access a set of constituents from an index, for example the SP500?
I do not want to type in each of the 500 names, as that would be tedious.

thanks.

4 responses

Also, how can I rebalance this universe on a weekly or monthly basis?

thanks.

Hey Preston

While we don't have the exact constituents of major indices like the S&P 500, you can make a pretty good simulation. Check out my notebook on Simulating S&P 500, Russell 1000, Russell 3000 in Research

In regards to rebalancing, check out the schedule_function feature in the Docs.

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Thanks James. In regards to rebalancing, theoretically I could apply the schedule_function to this simulation on a weekly or monthly basis...correct? Basically I just want to have an updated universe on a weekly or monthly basis.

Since get_fundamentals the method used in my notebook is only allowed in before_trading_start it will actually update the universe every day automatically. Then you can just schedule your rebalancing function for whatever interval you choose (monthly, weekly, daily...).