There are all sorts of reasons over what caused the crash last week, but real question is how can the market go, on a random Thursday afternoon, completely insane? Everyone is looking for someone to blame. But what made the crash on May 6th so absolutely shocking is the market dropped close to 1000 points in a few minutes… I mean in a few MINUTES!!!! Between 2 p.m. and 3 p.m. the Dow lost over 900 points before dramatically bouncing back about 600 points.
One thing is for sure, as the trading volume soared, data systems across the stock market began to get clogged. By 2:37 p.m., the overload seemed to have taken its toll on the NYSE's ARCA electronic-trading system. The bid/ask prices got out of control and the price of stocks were going insane. Accenture went from trading at around 40 dollars a share all the way down to one cent before bouncing back. Nasdaq detected what it felt was questionable information in the data and sent out a message saying it would no longer route quotes to ARCA. This step—known as declaring "self-help"—doesn't happen often among the major exchanges. By evening however, all exchanges in a rare coordinated manner put out a statement saying "All trades executed between 2:40 PM and 3:00 PM that increased more than 60% or decreased more than 60% away from the consolidated last print in that security at 2:40 or immediately prior" will be cancelled." Obviously this decision will not be open to appeal but while Nasdaq and others canceled trades on more than 200 largely NYSE-listed companies whose shares fell or rose more than 60 percent, investors unlucky enough to have sold depressed shares of other companies that fell less have little recourse and those who made money by buying at the bottom and made less than 60% can rejoice at others expense. Exchanges have never been blamed for losses, but my guess is this will be tested in courts this time around.
So far, a lot of people have been blamed. But even after a couple of days, there is no real rational explanation as to what went really wrong and caused the drop. There are theories, but no real answers yet!!
One thing is for sure, as the trading volume soared, data systems across the stock market began to get clogged. By 2:37 p.m., the overload seemed to have taken its toll on the NYSE's ARCA electronic-trading system. The bid/ask prices got out of control and the price of stocks were going insane. Accenture went from trading at around 40 dollars a share all the way down to one cent before bouncing back. Nasdaq detected what it felt was questionable information in the data and sent out a message saying it would no longer route quotes to ARCA. This step—known as declaring "self-help"—doesn't happen often among the major exchanges. By evening however, all exchanges in a rare coordinated manner put out a statement saying "All trades executed between 2:40 PM and 3:00 PM that increased more than 60% or decreased more than 60% away from the consolidated last print in that security at 2:40 or immediately prior" will be cancelled." Obviously this decision will not be open to appeal but while Nasdaq and others canceled trades on more than 200 largely NYSE-listed companies whose shares fell or rose more than 60 percent, investors unlucky enough to have sold depressed shares of other companies that fell less have little recourse and those who made money by buying at the bottom and made less than 60% can rejoice at others expense. Exchanges have never been blamed for losses, but my guess is this will be tested in courts this time around.
So far, a lot of people have been blamed. But even after a couple of days, there is no real rational explanation as to what went really wrong and caused the drop. There are theories, but no real answers yet!!
So what are the theories circling around?
- Fat Finger Issue - It has been widely suggested that a "fat finger trade" was responsible for triggering the panic. A trader entered a "b" for billion instead of an "m" for million in a trade involving Procter & Gamble. No confirmation yet but after a few days, this explanation possibly looks untrue
- Computer Glitch - There were many erroneous trades due to bad pricing, but the systems of course do not know that and did one thing lead to another and the systems get out of control?? Anybody’s guess at this point
- Stop Orders - There were 1000's of stop orders which got triggered due to the market breaking certain levels. Did a series of stop loss orders trigger a downward spiral maybe?
- European Debt Crisis - Greece definitely contributed to markets going down, but it is unlikely to be the sole cause that led to the all out assault on the markets
- Just plain Fear and Panic - There is also the possibility that this was a real financial panic. There are huge concerns about what is going on in general with the debt levels and the currency markets are fluctuating wildly. The Dow was already down several hundred points even before the massive plunge took place. The reality is that there is a lot of fear in the financial markets right now. But if it was a real panic, then why did the Dow bounce back so quickly?
- HTF - More than 60% of today’s trading is done electronically, so could High Frequency trading have been the cause for what happened? But if it was just high-frequency traders bailing out, why wouldn't [that drop] happen on every stock? It just doesn't add up.
- Hacking - Implausible without proof, but possible. It does sound farfetched, but hey, till now the exchanges have never been held responsible for the losses. So did someone hack into NYSE and purposefully create this mayhem not to mention walking away will a ton of money and a big smile as others are scrambling around to understand what went on.
As more details of last Thursday's collapse become clear, the picture is one of a highly rare confluence of events, some linked, some unrelated, that exposed weaknesses in the stock market large and small. But the only interesting thing here is the catalyst that stopped the fall. Whatever caused the market to crash stopped after a point which led to the reversal. So what was the catalyst?? I doubt anyone can really get to the bottom of this for a long time to come.
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