strategies research

Quote from rosy2:

great. do you have anything useful? i have tick data for the past several years on a number of instruments and have coded thousands of strategies that dont work.

DEShaw recently lost a lot on HFT, anybody knows more details?
 
Quote from mizhael:

DEShaw recently lost a lot on HFT, anybody knows more details?

Mizhael recently hijacked a thread on backtesting and portfolio simulation technologies, anybody knows more details?
 
I certainly think have high frequency data is helpful to detect market shifts, I, however, don't really believe an individual investor can find anything profitable in HFT if that is the goal and if that is why you gathered tick data.

The idea is not hard to understand. To play HFT, you need a co -located servers, fast execution engine that is written by the best programmers and maybe a data pipe between new york and chicago (cost 1.2 million setup + 200K+ per year)

What are the general directions for the type of strategies you worked on if you don't mind talk about them just a little bit?


Quote from rosy2:

great. do you have anything useful? i have tick data for the past several years on a number of instruments and have coded thousands of strategies that dont work.
 
Quote from JoePaterno:

Basically, As bill says. People will test a thousand patterns or indicators. Then they will rank the results and get excited by say, the best 50. But isn't is expected statistically that 50 out of the 1,000 would be in the top 5%?

And if they don't create data mining bias themselves (by not using genetic algos and some such) and discover something useful during the first program run (as they should), then the problem will be in the pattern database summarizing the collective data mining efforts of not only the vendor, but of many other researchers and practitioners that came here before... controlling for which is equally impossible as fiding out and correcting for the number of significance tests performed by AI black boxes.

Guys, before buying such software (for OPM), check if individual creative effort is no longer required in academic research and new drugs get FDA-approved every day of the week...
 
Quote from Phlub:

Has anyone on this forum had any experience with TSL personally?

No TSL demo trial available and the price is in the 60K range. There is another product called Adaptrade Builder but a user is complaining it is a scam:

http://strategytraders.org/index.php?topic=117.0

and this user complains that strategies quickly fade:

http://groups.google.com/group/adaptrade-builder/browse_thread/thread/3f6e7dcbf68c5ea2?hl=en

I have no way of checking their conclusions.

PAL is OK if you are interested only in OHLC patterns. It offerr true OSS and additional capability for checking for randomness based on a test of profitability across several markets. Code is fully disclosed.
 
Quote from intradaybill:

These will find automatically strategies based on your risk/reward parameters.


PAL is limited to price patterns or what I call micro-patterns. Useful in many ways but requires some work to avoid getting fooled by randomness. Easy to use to study patterns in stocks but extra caution should be exercised as all that glitters is not gold.

The problem with patterns is when they fool you as statistically significant but they are actually random that have survived by luck and are subject to quick mean reversion, usually in the next two or three instances. If you can get a grasp of this problem and find even a sub-optimal solution you can make money.


I actually started to check more systematically what the PAL previsions would come to this year following the results on DJIA stocks on the blog - for deltas over 10 and Significance at 8 or more. It doesn't look good so far and it might be one of the reasons Michael Harris stopped posting those.

The main issue is the patterns found through PAL might be completely random. Can you find a distinctive predictive edge to the PAL patterns ?
 
Quote from luisHK:

I actually started to check more systematically what the PAL previsions would come to this year following the results on DJIA stocks on the blog - for deltas over 10 and Significance at 8 or more. It doesn't look good so far and it might be one of the reasons Michael Harris stopped posting those.

I think he is still posting but only for PAL users. Regardless, I think you are talking about the indicator part because I have seen the posts. I have also seen posts with patterns. The last one about TLT was right on the post with perfect timing:

http://www.priceactionlab.com/Blog/...rding-to-technical-and-price-action-analysis/

The long SPY pattern earlier this month had also perfect timing. SPY opened lower the next day and just went straight up to hit the target:

http://www.priceactionlab.com/Blog/2012/03/a-short-term-bullish-pattern-in-spy/

But keep in mind that these examples are from the indicator and the scan. I do not think I have seen any system examples in the blog but there are some in the product website.

The indicator value changes each day after the close. I do not like indicators anyway. I think the pattern scan is much more interesting.
 
Back
Top