[R-SIG-Finance] Basket stop loss implementation quantstrat

[Aaron]

Hi Brian,


Thank you for the reply.


I'm going to go out on a limb and assume that rebalancing in this way will come at the cost of considerable overhead(?). I plan on testing 28 symbols with a minimum data periodicity of 15 minutes (over a period of ~10 years). How significant would the extra overhead be in a situation like this?


I have not yet got into rebalancing rules in quantstrat. Is there an example I could look up which could point me in the right direction?


Also, as my objective appears to be outside the scope of normal quantstrat applications, are you able to provide some sketch code as to how such an operation would be managed? I'm more than happy to have a dig at this myself but somewhere to start would be nice.


Cheers,

Aaron


________________________________
From: Brian G. Peterson <brian at braverock.com>
Sent: Tuesday, 13 December 2016 5:32 AM
To: Aaron; r-sig-finance at r-project.org
Subject: Re: [R-SIG-Finance] Basket stop loss implementation quantstrat

On Mon, 2016-12-12 at 17:17 +0000, Aaron wrote:
> Is it possible to implement a basket or portfolio stoploss in
> quantstrat? That is, I would like to trade a number of symbols
> simultaneously and use accumulated p/l across all symbols as a global
> stoploss/take profit.
>
> I have not seen any examples of this in quanstrat, likely as this
> method of position management is normally seen in foreign exhange
> trading and not stocks.
>
> Is it possible to do or would it require getting a list of possible
> entry prices for all symbols and performing post-hoc  position
> management?

quantstrat isn't really optimized for this kind of rule.

You could do it with a rebalance rule, but it will add a cross-symbol
loop on every rebalance period.

Brian


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