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Stopping a real money algorithm and starting a new one

Is it really as easy as stopping the current one and starting the new one? Both algos are pretty simple re-balancing algos. If so, a couple questions:

1) If I have positions in the algo I want to stop and I stop it, will they just sell off before my new algo kicks in?
2) I'm assuming I should generally do this after hours or does that matter?

Thanks for the help!

John

3 responses

John, when you stop an algo, it cancels all subsequent calls to handle_data, so the account remains in the state it was in before being stopped. That means none of your positions will be sold off, you will have to manually sell off any positions you do not want to keep before starting a new algo, or code the sale into the new algo.

David, thanks so much for the explanation! That really helps. Have a good one. John

However - one key thing is that when you start a live algo, Quantopian does load your current positions from IB. You don't have to sell your positions, necessarily. You just have to unwind any positions that the new live algo won't know how to handle.

We can go into more detail on this if you're interested. Also, you can test all this in your IB paper account, too - we load the position from IB paper in the exact same way as IB real money.

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