Wed 2010-06-09 18:56 EDT

Rajiv Sethi: The New Market Makers

...the SEC's preliminary report on the flash crash...led me to believe that most of this activity was caused by algorithmic trading strategies placing directional bets based on rapid responses to incoming market data. Two strategies in particular -- momentum ignition and order anticipation -- were explicitly mentioned as potentially destabilizing forces in the SEC's January Concept Release on Equity Market Structure. The SEC invited comments on the release, and dozens of these have been posted to date. There is one in particular, submitted by R.T. Leuchtkafer about three weeks before the crash, that I think is especially informative and analytically compelling...Leuchtkafer traces the history of recent changes in market microstructure and examines the resulting implications for the timing of liquidity demand and supply...The standard argument against increased regulation of the new market makers is that it would interfere with their ability to supply liquidity. Leuchtkafer argues, instead, that the strategies used by these firms cause them to demand liquidity at precisely those moments when liquidity is shortest supply...

New Market Makers; Rajiv Sethi.

zero hedge Sun 2010-05-09 09:45 EDT

The Day The Market Almost Died (Courtesy Of High Frequency Trading)

A year ago, before anyone aside from a hundred or so people had ever heard the words High Frequency Trading, Flash orders, Predatory algorithms, Sigma X, Sonar, Market topology, Liquidity providers, Supplementary Liquidity Providers, and many variations on these, Zero Hedge embarked upon a path to warn and hopefully prevent a full-blown market meltdown. On April 10, 2009, in a piece titled "The Incredibly Shrinking Market Liquidity, Or The Black Swan Of Black Swans" we cautioned "what happens in a world where the very core of the capital markets system is gradually deleveraging to a point where maintaining a liquid and orderly market becomes impossible: large swings on low volume, massive bid-offer spreads, huge trading costs, inability to clear and numerous failed trades. When the quant deleveraging finally catches up with the market, the consequences will likely be unprecedented, with dramatic dislocations leading the market both higher and lower on record volatility." Today, after over a year of seemingly ceaseless heckling and jeering by numerous self-proclaimed experts and industry lobbyists, we are vindicated...absent the last minute intervention of still unknown powers, the market, for all intents and purposes, broke. Liquidity disappeared. What happened today was no fat finger, it was no panic selling by one major account: it was simply the impact of everyone in the HFT community going from port to starboard on the boat, at precisely the same time...It is time for the SEC to do its job and not only ban flash trading as it said it would almost a year ago, but get rid of all the predatory aspects of high frequency trading, which are pretty much all of them...HFT killed over 12 months of hard fought propaganda by the likes of CNBC which has valiantly tried to restore faith in our broken capital markets. They have now failed in that task too. After today investors will have little if any faith left in the US stocks, assuming they had any to begin with. We need to purge the equity market structure of all liquidity-taking parasitic players. We must start today with High Frequency Trading...

courtesy; day; dies; high frequency trade; Market; Zero Hedge.

zero hedge Sun 2010-05-09 09:25 EDT

Dissecting The Crash

Here are two accounts dissecting in detail the events from yesterday. One is from Dan Hinckley at Wild Analytics, the second from Dan O'Brien. ...The idea that it was a 'fat finger' error is ludicrous; unless the fat finger hit every market in the world virtually simultaneously. Liquidity simply left the world financial markets for about four minutes this afternoon. The bids just vanished...In one second more or less someone (and yes, under these circumstances, human beings take control of the machines) made the decision to pull the bids on every equity in the S&P, every financial futures contract, every FX contract in every market in the world. This kind of thing just doesn't happen in a pure auction environment; there just isn't a tight enough communication link between the parties to allow the decisions to propagate within the same second -- even with HFT algorithms. No. Some human made the decision to pull the bids; all of them, all at once. If that is not a condemnation of the concentration of financial power and the systematic risk it engenders I don't know what is...How does all of this happen? Well, you can thank the Federal Reserve... 1) The Fed prints fake money out of thin air... 2) Large banks and hedge funds borrow money from the Fed at near-ZERO interest rates... 3) These institutions buy Treasuries with a guaranteed 4% return, thus guaranteeing the banks massive and risk-free profits on the backs of the middle class (remember, you're not allowed to earn an interest rate on your savings accounts!)... 4) These institutions then swap Treasuries with the Fed for cash... 5) These same institutions (banks) then take the cash and gun the stock market higher with its FREE MONEY from the government...I meant free money from you. By the way, were you asked to vote on this? Frankly, it's better than free money - they're being PAID to do this... 6) Banks pay the very clown-posse that cause the 2008 crash (and today's) the largest bonuses...EVER...with your tax dollars.

Crash; dissecting; Zero Hedge.

Rick Bookstaber Sun 2009-08-30 12:07 EDT

Not with a Bang but a Whimper -- The Risk from High Frequency and Algorithmic Trading

Rick Bookstaber

``There is a general view that one way or another the end result of all the high frequency and algorithmic trading will be a blowup. But I don't think the risk is as big as many are making it out to be...the risk of a cataclysm is constrained by the lack of feedback and lack of tight coupling...As the field gets increasingly crowded, market impact will rise and opportunities will diminish'' First, let me point out the difference between high frequency trading and algorithmic trading. Both execute using computers, and since computers work really fast, both can be accused of whatever sins are embodied in millisecond trading. High frequency trading is a type of proprietary trading. The trader (or his computer) sees a profit opportunity and trades accordingly. This profit opportunity...

algorithmic trading; bang; High Frequency; Rick Bookstaber; Risk; Whimper.