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- 8 June 2008
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Thanks for mandatory voting, Mark vote is as important as yours. I would still recommend Mark avoid discretionary trading
Hi Skate, how long do you paper trade new systems for before deciding to go live or not or even before you start to tweak?
I see you use $300,000 when testing, is this related to if or when you go live?
You made the point about position size affecting price and I wondered once getting up to 25k that became an issue. I also like how you increase position number as peter2 noticed his system improved when number of positions were increased to 40.The strategy is full
Strategies are considered full when they ramp up to 40 (25k) positions. When this happens I look to start another strategy.
You made the point about position size affecting price and I wondered once getting up to 40k that became an issue.
Skate have you looked at any mean revision systems ? or are you only interested in trend following?
Pretty sure Skate has previously mentioned commission, slippage and costs cut too deeply into profits to make MR successful in Aus. Not to say it can't be done, just very challenging and possibility of strategy becoming obsolete potentially greater.
From watching what Nick Radge currently does to augment trend following, I have some suspicions on aspects that would help with MR systems:
* Very low commissions - US market still much more efficient in this regard than what we're offered here in Oz
* Very "efficient" mature market much more likely to mean revert (i.e. US > Aus) (read some Kaufman on market "efficiency")
* May be that larger cap stocks more likely to mean revert, depending on strategy
* Need a broker that accepts multiple orders, when you only expect to fill some of them (my Aus brokers don't allow this - but suspect IB and others do - must check)
* Because of last item, will be frequently entering and cancelling orders - greater need for automation or bit more sophistication (Radge has custom programmed API for IB and generates text/CSV orders file from Amibroker than pastes into API)
* Much greater need to model and include commissions, slippage etc in the backtests - tricky but otherwise you get overly optimistic results with flat equity curves that are dangerously tempting (more so than generally occurs with over-fitted optimistic TF system development)
If above points are close to the mark, then I'm intrigued but not ready to go that way. Still in the Trendnomics camp for trend following personally - push on with robust TF strategy, and be prepared for some weeks to month long wild swings. Fits my lifestyle, personality and time availability right now however.
Sorry I was not very clear as I meant 40 positions of 25k.@willoneau I may not have been clear, it’s 40 position portfolio not $40k position sizing
I have stopped paper trading system 1 and started live trading system 2. I have 8 open positions that were entered in on Monday, and the rest of the 12 positions have been entered for the pre-market.
No new positions as I was busy and frankly I'm comfortable waiting to see how the markets react to the ongoing virus threat to multiple economies. No such concerns for the system trader, onwards and upwards and damn the portfolio heat.
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