Index du Forum

aderfp633 · Inscrit le: 27 Sep 2011 Messages: 7915 Localisation: England

{ What Happens During 1 Second of HFT? }
1/2 second of trading activity in Johnson & Johnson (symbol JNJ) on May 2,[url=http://www.michael-korshandbags-outlet.org]Michael Kors Handbags Outlet[/url], 2013Published on May 3, 2013Nanex explains:“The bottom box (SIP) shows the National Best Bid and Offer. Watch how much it changes in the blink of an eye.Watch High Frequency Traders (HFT) at the millisecond level jam thousands of quotes in the stock of Johnson and Johnson (JNJ) through our financial networks on May 2,[url=http://www.michael-korshandbags-outlet.org]Michael Kors Handbags[/url], 2013. Video shows 1/2 second of time. If any of the connections are not running perfectly,[url=http://www.michael-korshandbags-outlet.org]michael kors canada[/url], High Frequency Traders can profit from the price discrepancies that result. There is no economic justification for this abusive behavior.Each box represents one exchange. The SIP (CQS in this case) is the box at 6 o’clock. It shows the National Best Bid/Offer. Watch how much it changes in a fraction of a second. The shapes represent quote changes which are the result of a change to the top of the book at each exchange. The time at the bottom of the screen is Eastern Time HH:MM:SS:mmm (mmm = millisecond). We slow time down so you can see what goes on at the millisecond level. A millisecond (ms) is 1/1000th of a second.Note how every exchange must process every quote from the others — for proper trade through price protection. This complex web of technology must run flawlessly every millisecond of the trading day,[url=http://www.michael-korshandbags-outlet.org]Michael Kors Outlet[/url], or arbitrage (HFT profit) opportunities will appear. It is easy for HFTs to cause delays in one or more of the connections between each exchange.”Source: Nanex
_________________
People watching the forthcoming beginning of the German half of the inhabitants of Berlin are no interested in co-optation

Index du Forum -> Offres/demandes de matériel -> What Happens During 1 Second o