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With the Skate "Zebra" system, you have 20x$1K parcels, if you purchase the stock on Commsec, you'd have to always do better than 4% to just make the round trip. The commission burn will be a drag, this would be effectively paying 200 basis points to buy/sell - when many brokers offer 5-10bps.ahh just spotted $10 commissions but still high
Looks interesting. I'll have to give it a whirl, although it's going to be hard to give up my excel spreadsheet !!!Good post Dave,
there is a new Backtesting software coming out in the next few months that you might be interested in. It's called Realtest and is created by Marsten Parker one of the traders featured in the new 'Market Wizards' book. i've been Beta testing it and it's great for portfolio level backtesting. ie combing systems together and seeing the impacts on a whole portfolio.
I've coded a few different MR systems in it and the learning curve isn't too bad if you've used Amibroker. I will probably convert all my short term systems over to it, much more user friendly and faster for both backtesting and system design imo. I might make a thread for it once it comes out.
Looks like something I have been after.This is an example of a chart you can produce to see how different strategies react with each other, this is using a example script.
It's a great piece of software
View attachment 116006
Yes, the commission drag is relevant to the overall performance and needs to be considered.
I have a couple of systems myself that perform okay 20-30% CAGR with similar drawdowns over a 15year period backtest.
One thing that would be useful is the ability to code into the system the taxes you'd pay to get a realistic equity curve and against a comparison of other asset classes, like property for example.
@peter2 the Panda Strategy has stalled but it's more reflective of the current market conditions rather than starting all the positions just a few days apart. The Panda Strategy will not release a position till the volatility at the individual level collapses or the position is taken out by the trailing stop. Going sideways or taking a breather isn't a concern with this strategy, rather it's to be expected. Most daily systems I've coded in the past the exits are responsive - the Panda works a little different. Holding a position in a sideways market longer than expected & longer than I usually like is a built-in feature of the strategy.PANDA watching. It's interesting that the Panda portfolio has stalled. All twenty positions as a batch have stalled. I would expect that a few would continue going higher and keep the momentum in the portfolio. We're not seeing this at the moment. I think this is a timing issue due to starting all twenty positions at the same time.
'looks' all fantastic and promising, however, my brain doesn't quite comprehend it all,,,,,,,yet.
What software and spreadsheets are you using?
@pythagoras, there are 3 pieces of software I couldn't live without as a trader: (1) AmiBroker (2) Norgate data (3) Share Trade Tracker. I use "Share Trade Tracker" as my portfolio manager & have so for many, many years. The reports displayed in the "Dump it here" thread are generated using "Share Trade Tracker".
Skate.
Hi Skate, thanks for the intel on what tools you are using. I see that ' Share Trade Tracker ' has been discontinued. Is there a place to download the tool?
@pythagoras, in my haste in responding to your question I should have mentioned that "Share Trade Tracker" is no longer offered for sale. Share Trade Tracker didn't attract a sufficient number of subscribers to continue development even though it's considered a worthwhile tool. Some time back I offered an extended 6 month trial of "Share Trade Tracker" & still there was a lack of interest. Thus the offer was never implemented. I'm sure others will post an alternative to Share Trade Tracker for you to try.
Skate.
sorry meant for @pythagorasYes, contact the developer, they have made it available to users of the aussiestockforum for 2hrs of equivalent consultancy, i.e. about $280+GST
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