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How to optimize alpha portfolios?

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 Zura Kakushadze, Ph.D., President at Quantigic® Solutions LLC

 Friday, October 16, 2015

Paper http://papers.ssrn.com/sol3/papers.cfm?abstract_id=2446328 (Journal of Investment Strategies) gives explicit algorithms for optimizing alpha portfolios accounting for tcosts, impact & turnover reduction, including maximizing P&L with lower (upper) bounds on Sharpe (volatility).


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17 comments on article "How to optimize alpha portfolios?"

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 Zura Kakushadze, Ph.D., President at Quantigic® Solutions LLC

 Friday, October 16, 2015



@Aurel Correct, the real life is not in books. However, I cannot go into proprietary real life details here. All I can say is that 800 strats is a tiny fraction of what I call real life. :)


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 private private,

 Saturday, October 17, 2015



:)

Zura //800 was made one by one not copy paste .. and when you will make 0,5% / day let me know .. i dont want to go in details . . BUT .. over the internet ..every day it come a document .. with solutions .. My friend Mike Baghdady..(with 30 years experience in trading ) .. before 2 years ..in Oxford University .. say .. "we are in the making money business .. it don't mater how ".. You have to have a real prof.. of what you are saying/making is trough or false ..from theory to real ..is easy ..you need just ..money/time/know-how ...all others ..are just "WORDS" ..have a nice weekend ..and try to go to the real world of "Making Money "..


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 Zura Kakushadze, Ph.D., President at Quantigic® Solutions LLC

 Saturday, October 17, 2015



No need to prove anything. The paper speaks for itself.


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 private private,

 Saturday, October 17, 2015



A good scientific theory should be falsifiable...in real world ?

@ ..i just try to help you understand.. how "old" people like me thinking and make money ..this will be my last comment on your paper ...

Let me give you a concrete example. From the time of Isaac Newton until 1919, scientists thought that light always followed a straight line in a coordinate system where the there were three perpendicular axes. No scientific work contradicted this view. Then along came Einstein with his theory of general relativity... true /false . . One of its predictions is that the presence of mass bends space towards it. That is, the coordinate system is not composed of rigid straight axes perpendicular to each other if there is a mass nearby. In 1919 Eddington tested this theory by observing stars during a solar eclipse. The data showed that the pathway of light from the distant star was curved by the presence of the sun. That observation and many more observations completely demolished the previous view of space. Einstein was right after all..but after so many years .. You must be patient and you need to..in case you dont .. in the near future you paper ..will remain just a paper.. everything we do /make / ..it need to be tested .. I assume that your age and ego ..dont let you accept my advice ...

This means that one could propose a test to determine the accuracy of the theory and show the theory to be false. This does not imply that the theory is wrong. However, if a theory is subjected to such a test and is found to be wrong (assuming that it is a good test), then the theory is wrong. All of the supporting evidence will not overcome one good experiment showing that the theory is wrong...@bye


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 Zura Kakushadze, Ph.D., President at Quantigic® Solutions LLC

 Saturday, October 17, 2015



None of this has anything to do with my paper.


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 Zura Kakushadze, Ph.D., President at Quantigic® Solutions LLC

 Thursday, October 22, 2015



@Guy Yes, many things are proprietary. I try to be accommodating and polite and answer questions within reason. However, when people start saying I *have* to do something, that's where I draw a line. I get pinged by dozens and dozens of people, mostly privately, asking me for all sorts of things, starting from source code (for free...) ending with collaboration requests. My day has 24 hrs just like everyone else's. I don't put these papers out for any one particular person to love or hate. In fact, it's a lot of work just to post them. However, there is a constant inflow of a lot of young people/students who can benefit from these papers considering how secretive the field is and that there's a huge gap between the academic publications and the real world. So, what do you think is better? Me typing up this reply or working on my next paper - and I have a few in the pipeline - which will benefit the aforementioned young people/students and possibly others?


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 Zura Kakushadze, Ph.D., President at Quantigic® Solutions LLC

 Thursday, October 22, 2015



@Aurel In light of my last reply to @Guy, I think it make sense that I don't reply to your long comment which doesn't even have anything to do with my paper...


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 private private,

 Thursday, October 22, 2015



.. Oh-ha...i understand .. . .@Zura .. is just .. about publishing !! :0 ..as many papers you will have publish . as happy you can be ..unfortunate in my world ... "in making money business " ... you need to prof that what you are saying is valid and truth ... and have a win result .. ( just to pay .. .tax/ salaries/ bills ) .it works different ..thanks .. and this is my last comment to any paper you will publish ..

..


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 Zura Kakushadze, Ph.D., President at Quantigic® Solutions LLC

 Thursday, October 22, 2015



@Aurel Thank God!


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 private private,

 Friday, October 23, 2015



Woooau. IS JUST ABOUT NUMBERS . . . ?? ! !? !!! - fantastic .. kip doing the same will make you famous :) .. and maybe rich.. ..

● Academia: Gave 85+ presentations at leading financial institutions, scientific conferences/workshops and universities in the U.S. and overseas.

● Academia: Full Professor, Business School & School of Physics, Free University of Tbilisi.

● Academia: 3,300+ citations (per Publish or Perish using Google Scholar); 1 TOPCITE 250+ paper, 6 TOPCITE 100+ papers and 12 TOPCITE 50+ papers, h-index 30 (per inspirehep.net); 105 papers (85 in theoretical physics, 18 in finance, 2 in other fields); 14,100+ SSRN downloads since Apr 2014; as of Oct 1, 2015 ranked #42 by SSRN downloads in the last 12 months.


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 Zura Kakushadze, Ph.D., President at Quantigic® Solutions LLC

 Friday, October 23, 2015



@Aurel You've crossed the line with your harassment. You just unilaterally endorsed me on my profile for a new skill "Published Author", which I obviously rejected. Now you're copying and pasting from my profile into this thread. My only advice is, life's way too short to waste hating others and their achievements and frivolously harassing them in public forums.


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 Dolphin Lamprell (Searching PPP Bank Trade), Founder & Chairman at Lamprell Bank Plc

 Friday, October 23, 2015



Zura Kakushadze, Ph.D.

Zura, I think you can share your knowledge with the people like me. Not with everyone :-)

Please introduce a little about yourself :-)

I am big time fan of article on microfinance and consolidation.


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 Doron Whitman, CEO and Founder at Algorithmic Traders Association: Intense CAT® Certified Training for Algo Traders

 Friday, October 23, 2015



Aurel Ispas, I removed your comment and would like to ask for your help with staying on topic and avoiding sarcasm. The discussion board is meant for professional discussions and professional language and respect of others is required.


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 Guy R. Fleury, Independent Computer Software Professional

 Friday, October 23, 2015



@Zura, based on your reply, there is no discussion permissible or even desired pertaining to your paper. How convenient, you filled your paper with 331 equations, and none of them can be scrutinized as to their validity or usefulness. It's ok, I'll go quietly. But still, I will probably continue to read your other papers, just in case and will refrain from any feedback.

Thanks again for sharing. Wish you all the best.


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 Zura Kakushadze, Ph.D., President at Quantigic® Solutions LLC

 Friday, October 23, 2015



@Guy No, that's not what I said, which is in writing above so there's no misconstruing it. If you have a *relevant* question, you can ask. If I have time, I will answer. You might not like my answer. That doesn't mean that it's OK to bombard me with demands to the effect that I *have* to prove something. I wrote the paper. If you think it's "wrong" or "useless", don't use it. I am not demanding that anyone read it, am I? I am making it available. Again, there's a constant inflow of hundreds of new young people/students/others who join groups on LinkedIn daily and who can benefit from information in this secretive field. So, I put my time into posting these papers. If someone doesn't like that, too bad, don't read them, ignore them.


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 Fabio Masseti, SA - Factset

 Monday, October 26, 2015



this convo reminds of a painting "the blind leading the blind"


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 Zura Kakushadze, Ph.D., President at Quantigic® Solutions LLC

 Monday, October 26, 2015



Yet another comment with no relevance to the subject matter.

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