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BogdanCalin

BogdanCalin on Hacker News

Re:Spoofers Tricked High-Speed Traders by Hitting Keys Fast on Wednesday January 14, 2015 @09:58AM (#8886581)
thank you very much.
Re:Spoofers Tricked High-Speed Traders by Hitting Keys Fast on Wednesday January 14, 2015 @09:19AM (#8886337)
I've read both "Flash boys" and "Dark Pools". Do you have any other book recommendations on this subject?
Re:Spoofers Tricked High-Speed Traders by Hitting Keys Fast on Wednesday January 14, 2015 @09:11AM (#8886292)
I don't have enough technical knowledge about HFT to refute your arguments.

However, thinking logically about the whole HFT business: As I understand it it's something like this:

Let's say I want to buy 100 apples at $1 a piece. A middle man comes and says: I see that you want to buy 100 apples. Let me buy them for you. Here they are (an apple is now $1.001)

Why do I need this middle man to steal from me? You will probably say that they are providing liquidity. It's still stealing and the markets had enough liquidity before the whole HFT gang came.

Maybe I'm wrong, if so please explain me why.

Re:Spoofers Tricked High-Speed Traders by Hitting Keys Fast on Wednesday January 14, 2015 @06:06AM (#8885540)
95 percent of high-frequency trader orders are cancelled (so fast that nobody can take them). Some high-frequency traders have claimed to be profitable on over 99 percent of their trading days.

I don't buy the "providing liquidity" defense of HFT.

http://blogs.wsj.com/moneybeat/2014/04/03/schwab-on-hft-grow...

Re:Spoofers Tricked High-Speed Traders by Hitting Keys Fast on Wednesday January 14, 2015 @03:27AM (#8884979)
That's exactly what I was thinking. When high frequency traders are doing it it's OK but when this guy tricks them into actually taking some risks it's fraud.
Re:How my life was changed when I began caring about the people I did ... on Friday January 09, 2015 @10:17AM (#8862527)
The hiring was made in 2004 not 2014.
Re:Are You a Robot? Introducing “No CAPTCHA ReCAPTCHA” on Wednesday December 03, 2014 @10:54AM (#8694321)
On what page did you tested the new system?
Re:Launching in 2015: A Certificate Authority to Encrypt the Entire Web on Tuesday November 18, 2014 @11:29AM (#8624627)
You can revoke the certificates from the command line. It's shown at the end of the video.
Re:iSIGHT discovers vulnerability used in Russian cyber-espionage camp... on Tuesday October 14, 2014 @08:19AM (#8453038)
Technical details (in russian, use Google Translate): http://habrahabr.ru/company/eset/blog/240345/
Re:The pitfalls of allowing file uploads on your website on Tuesday May 20, 2014 @10:54PM (#7776472)
Host them on a separate domain like Google and Github does (eg. Google uses googleusercontent.com and Github uses githubusercontent.com).
Re:Facebook Buying WhatsApp for $16B in Cash and Stock Plus $3B in RSUs on Thursday February 20, 2014 @01:39AM (#7269274)
Of course they can afford this. Facebook has currently a market cap of $173.35B (https://www.google.com/finance?q=FB)

They spent on WhatsApp $4B (cash) and $(12+3)B (in stock). $12B is nothing when you have $173B.

If the $173B evaluation is correct, it's a totally different story. But as long as people think it's correct, Facebook can profit and buy any competitor with investor's money.

Re:China hacker's angst opens a window onto cyber-espionage on Friday March 15, 2013 @05:20AM (#5379765)
Here is the blog http://blog.sina.com.cn/rocybird Use Google Translate to read it (or Chrome).

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