Australian (ASX) Stock Market Forum

'Fat finger'? ... my ****!

I belive it was a mistake or Interactive Brokers would not put up this Bulletin
 

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Hi guys,

Just got back to this thread... it was about a prostate test gone all wrong!!! What the hell are you all talking about? What is this talk about a market meltdown? There was a global meltdown?? :eek:

Anyway, I am going back to bed to lay down... cant sit. :D:rolleyes:

Brad
 
Well, there has been rumour that the slump was caused by a broker selling $3 Billion instead of $3 Million worth of Procter & Gamble.
Can't verify that on the chart though - unless some of those trades have been cancelled immediately.
The pattern of trades in the 1-minute grid looks more like a deliberate stop raid than a one-off glitch. Had it been the latter, the drop would have happened within seconds, rather than take 4 minutes.
The red arrow preceding the plunge came in at 14:47; 10 minutes later, 100 shares were still being sold at $61.63, whereas the Low was reached at 15:03 and lasted 2 minutes before the next 100 shares were bought at 15:05 for $59.00

btw, I checked a few other contenders with similar results.

On examining the Procter & Gamble chart more closely, I then noticed the height of the bulk of volume bars. They're all sitting on 100 shares. Now, if it were an orderly, human-controlled market, what would be the odds of every trader wanting exactly 100 shares?
But 100 shares a minute - that really screams'bot!' - aka 'robotic program trades'.

And remember: Every computer program is only as good and reliable as the programmer who wrote it.

PG%201min%2006-05-10.gif


PS: The funny thing, regarding the planned reversals of trades between 14:40 and 15:00, is this: The Low of the raid occurred at around 15:05, so if the authorities were serious about reversing the unjustified gains, they'd reverse the entire last hour and a half. But that might well defeat the manipulators' purpose.
 
Some new 'circuit breakers' being introduced in response to the flash crash.

If one accepts the legitimacy of circuit breakers then the fact that they only applied to certain exchanges
and not to others (and therefore orders that could not be executed on an exchange which had suspended
trading were rerouted to exchanges where the order could be executed) seems to nullify the whole point
of a circuit breaker. To my meagre understanding anyway.
These new regulations address this issue (amongst other things, of course).

If one doesn't accept the legitimacy of circuit breakers then thats a whole different discussion.

SEC puts in new 'circuit breaker' rules

... SEC Chairman Mary Schapiro said in a statement. "By establishing a set of circuit breakers
that uniformly pauses trading in a given security across all venues, ....

My bolding.

http://www.businessweek.com/ap/financialnews/D9G8IS9O0.htm
 
Wouldn't it be pretty simple to make that recording after the event?

I suppose it would be pretty simple, but I don't think he would get away with it.

The service is Traders Audio and its been around for a while. Each day the pits are open they broadcast the action, either a straight-out broadcast without commentary, or a commentated broadcast, like the example mp3 file. So they do have their credibility to preserve, and making a recording after the event would open them up to all sorts of accusations and probably a severe loss of business. It wouldn't take long for someone to call them on a bogus recording, I would imagine.
 
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