Sorry I didn't see these until today. How many pairs do you have to get only 10 signals a month? Most of my pairs will produce anything like 10-15 signals a year, so with ~300 pairs in the data base I get 10+ signals per day.
My criteria are similar, except I am not that strict with correlations. To me the correlation has to go apart in order to have any divergence, so I am not that worried if correlation was 50-60% 2 months ago. Increasing correlation also means nothing to me. It's really not a share price chart and no reason to believe trends are likely to continue. The 20day SMA also feels unimportant... if 20day SMA is that useful as an indicator then you might as well do directional trades with that. Lastly I scrutinise the historical profit, and take out anything that's out of whack due to announcements, capital raising etc. Basically anything that's over 10% PnL are probably trades that shouldn't have been taken anyway.
The other trick is to close out the pairs and take profits quickly. Before I enter a pair I work out what's the potential profit if the pair goes back towards the mean straight away. And I will take profit if I can get 70-80% of that full potential amount. Reason being that the MA will move everyday and they generally move in the opposite direction of the ratio. So why wait for the exit signal for another 2 days when that signal will produce a profit similar to what you have today?
I know nothing about FTSE350 sectors so can't comment. But when I say I try to know my stocks intimately I mean really intimately. Two stocks might be both retailers but one has more sales in the US and is hurt by the higher $AUD. So unless I believe $AUD is due for a fall I am not going to long that stock straight away... wait a day or two before entering can often improve your entry, even when the std dev is no longer at 2.0.
And with mining companies they should mine the same stuff at a minimum...
Pair Trading not going to well at the moment, hopefully just one of those temporary drawdowns, had 2 big losers in a row...
One thing i've noticed is pairs where one of the pair is in a narrow trading range is generally not a good pair. The reasoning being, i've noticed if the market suddenly moves up, that narrow range can turn into a huge breakout, which the pair stock might not move in pace with. Also conversely, it can also mean if the market moves, that this stock stays in its narrow range, and the other stock follows the market... both ways lead to a loss!
Anyone else observed this?
Actually narrow trading range is a great pair trading opportunity in my experience. Usually one leg of the pair have made a breakout, while the other is still in its narrow range. You short the breakout and long the consolidation.
If market keeps rising, the consolidation will end in a breakout while the breakout consolidates - a perfect trade.
If the market tanks, the consolidation won't breakout and may hold there abouts, while the breakout turn out to be a false break, other breakout traders got their stops hit and the share falls by 8% over 2 sessions - another perfect trade.
If the market doesn't do anything - then your pair may not do anything either.
A recent example comes to mind is short APN long WAN on ASX. APN went for a run Wed morning made a new high at 2.61 against WAN that's been flat around $8-$8.1 mark. The pair stretched to well above 2.5 std dev. Their prices today are $2.32 and $7.9. Anywhere between 6-10% gain depending on where you got in.
Of course you need to be sure that the breakout was not news related...
Actually narrow trading range is a great pair trading opportunity in my experience. Usually one leg of the pair have made a breakout, while the other is still in its narrow range. You short the breakout and long the consolidation.
If market keeps rising, the consolidation will end in a breakout while the breakout consolidates - a perfect trade.
If the market tanks, the consolidation won't breakout and may hold there abouts, while the breakout turn out to be a false break, other breakout traders got their stops hit and the share falls by 8% over 2 sessions - another perfect trade.
If the market doesn't do anything - then your pair may not do anything either.
A recent example comes to mind is short APN long WAN on ASX. APN went for a run Wed morning made a new high at 2.61 against WAN that's been flat around $8-$8.1 mark. The pair stretched to well above 2.5 std dev. Their prices today are $2.32 and $7.9. Anywhere between 6-10% gain depending on where you got in.
Of course you need to be sure that the breakout was not news related...
Sorry I didn't explain very weel. What I meant to say is an entry signal has been generated (ie.2 stdev from mean etc..), but NEITHER has broken out of a range. One stock is in a range, the other stock has meandered downwards say to cause the signal. Hence we Short the stock in range, and Long the stock that has meandered downwards. Then the Market has a big surge upwards, the in range stock then decides to breakout upwards in your trade... big loss...!
I think having just re-read your post from "2nd Oct", you do agree, as you said exactly this: Quote:
"- I sometimes read the individual share charts before entering, so I will happily long a share that looks like ending a downward correction, or avoid shorting a share that is positioning for a potential breakout."
So thanks, your previous post i've just re-discovered is very useful!
re. trading a breakout, yes i think these can be good trades, although i've discovered that timing the entry needs care, as yes the breakout was not news related, but driven by those investors chasing breakouts on volume..hence if you enter too soon the breakout may still have a long way to go, especially in a bullish market. I've discovered this to my loss on one occasion, I entered and that breakout stock just kept on going upwards....
would anyone consider long FXJ & short APN as a pair?
45 days seem to be reaching stddev 2. 60 days and 1 year suggest otherwise.
what time span do you use normally? 45 days? 50? 60? thanks!
skc,
the pair trade software comes installed with a lookback of 14 days for the std dev. what made you change to 20 days?
Im curious to know if people are using commerical software for pairs trading or building their own speadsheets?
Thanks for your help
i'm using pairtrade finder however this is only a temporary measure while i finish off building my own software.
pairtrade finder pros:
- provides a good starting point for backtesting pairs
- once you have a basket of pairs, the console provides a nice simple overview of how each pair is tracking
pairtrade finder cons:
- horribly buggy (like incredibly bad)
- default yahoo data feed is inaccurate. can only be replaced with iq data feed and i don't believe they do australian equities
- does no data cleaning whatsoever ie you will find lots of stocks with missing price snapshots for a given day; this affects backtesting etc.
- to hard to edit stock lists, sectors, different exchanges, pairs.
- slow
i have found it useful getting my pair trading started but i've definitely outgrown it. in fact, grew so tired of the data problems that i wrote my own tool to replace the data it imports and now i pretty much use it just for the pretty graphs.
I use the pair trade finder myself and agree with most if not all of the comments above. However, I still use it as my main tool because I don't have much coding skill to do a better job. But more importantly I think the smarts of the system lies with the trader and not in the software. I am not those fully mechanism / system / quants type traders so I am not really concerned with optimising the last parameter.
Having said that, if the software would crash less and allow for better data than it would be a huge positive.
I have been having a lot of problems with the pair trade finder software. (just sent you a message tigger36)
I find it extremely buggy and slow. The list of pairs does not even load up for me anymore.
I tried developing something basic on Excel but it takes too long to retrieve the data for one pair, let alone 50 pairs. If someone can send me a copy of their software that actually works I would really appreciate it. My email is bzltop@gmail.com
Well, I'm now up 80% since August 2009 with a captial of $5000. Took a hit last week with WTF and I am still up. But HVN is giving me the problem now where I shorted it at 4.01.
Yes, the software is buggy and you get Enters such as IFL/PTM the other day and the next day it disappera off the screen.
Does anyone have a better price feed than Yahoo - it is terrible?
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