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Solotrader, you are right. Exchange rules in the US prohibit holding simultaneous long and short positions. The solution that I use with multiple accounts works, but it is not efficient in terms of margin and computer recources. However, thanks to ideas I took from Kevindog and the other contributors of this topic, I am working on a software solution to sum my strategies in one signal. At the moment I am testing to see if limit orders can be correctly emulated. I also want to calculate the correct value of a safety type of Stoploss, using the StopLoss limit order, so that I know that the SL is always available at the broker.
What works for me is running each model for a given instrument on a separate chart in MC on the same account. I am not using stoploss, etc, however, i believe MC reads that from the screen as opposed to your brokerage account, thus it works. If you combine models on one chart, it screws up the logic. If you combine models in one script, it in most cases becomes inflexible and will not be able to post similar result if run separately.
Any further feedback on this would be much appreciated from anyone who runs numerous algos on the same instruments.
that's correct. In general everything is chart specific, unless you specifically use reserved words that are not (like MarketPosition_at_Broker or AvgEntryPrice_at_Broker for example).
Since writing that article over 1 year ago, I have slowly moved my trading from using these methods (listed in article):
Option 4 - Use outside tool to manage positions
Option 5 - Trade multiple accts
Option 6 - Recode strategies to work together
Now I use Option 4 with Ninja as my primary method. So, right now, I am trading 62 unique strategies (charts) with 16 instruments. It works pretty well. In cases where I only have 1 strategy for an instrument, I trade those the normal way.