http://zerohedge.blogspot.com/2009/04/i ... idity.html
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The big boys are deleveraging and Goldman (Paulsen was former CEO, Geithner is buddies with Thain) is using program trading to generate the recent rally, which is a Pump and Dump scheme to sucker retail investors in and then bail out leaving them watching their investments evaporate.
The probability is high for this to occur in the next week or two; all the bear rallies so far have averaged 30-45 days; this one started March 9.
The world might blame program trading, which is what happened in 1987 too, but we all should know better now.
This is a global overproduction crisis, and all of the last decade of financial shenanigans have just been to disguise and postpone the underlying collapse in profitability and aggregate demand in the world, and optimize the deleveraging escape for whoever is best connected or has good intuition.
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In order to maintain market efficiency, the ecosystem has to be balanced: liquidity disruptions at any one level could and will lead to unexpected market aberrations, such as exorbitant bid/ask margins, inability to unwind large block positions, and last but not least, explosive volatility: in essence a recreation of the market conditions approximating the days of August 2007, the days post the Lehman collapse, the first November market low, the irrational exuberance of the post New Year rally, and the 666 market lows.
The above tracking charts indicate that something is very off with the "slow", "moderate" and "fast" liquidity providers, indicating that liquidity deleveraging is approaching (if not already is at) critical levels, as the vast majority of quants are either sitting on the sidelines, or are merely playing hot potato with each other (more on this also in a second). What this means is that marginal market participants, such as mutual and pension funds, and retail investors who are really just beneficiaries of the liquidity efficiency provided them by the higher-ups in the liquidity chain, are about to get a very rude awakening.
Also, it needs to be pointed out that the very top tier of the ecosystem is shrouded in secrecy: conclusions about its state can only be implied based on observable metrics from the HSKAX and HFRXEMN. It is safe to say that any conclusion drawn based upon observing these two indices are likely not too far off the mark.
Skeptics at this point will claim that it is impossible that quant and program trading has such as vast share of trading. The facts, however, indicate that not only is program trading a material component of daily volumes, it is in fact growing at an alarming pace. The following most recent weekly data from the New York Stock Exchange puts things into perspective:


Key to note here is that Goldman's program trading principal to agency+customer facilitation ratio is a staggering 5x, which is multiples higher than both the second most active program trader and the average ratio of the NYSE, both at or below 1x. The implication is that Goldman Sachs, due to its preeminent position not only as one of the world's largest broker/dealers (pardon, Bank Holding Companies), but also as being on the top of the high-frequency trading/liquidity provision "food chain", trades much more often for its own (principal) benefit, likely in tandem with the other top dogs on the list: RenTec, Highbridge (JP Morgan), and GETCO. In this light, the program trading spike over the past week could be perceived as much more sinister. For conspiracy lovers, long searching for any circumstantial evidence to catch the mysterious "plunge protection team" in action, you should look no further than this.
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As more and more quants focus on trading exclusively with themselves, and the slow and vanilla money piggy backs to low-vol market swings, the aberrations become self-fulfilling. What retail investors fail to acknowledge is that the quants close out a majority of their ultra-short term positions at the end of each trading day, meaning that the vanilla money is stuck as a hot potato bagholder to what can only be classified as an unprecedented ponzi scheme. As the overall market volume is substantially lower now than it has been in the recent past, this strategy has in fact been working and will likely continue to do so... until it fails and we witness a repeat of the August 2007 quant failure events... at which point the market, just like Madoff, will become the emperor revealing its utter lack of clothing.
So 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.