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Poll_Blind

(23,864 posts)
Wed Apr 24, 2013, 08:33 PM Apr 2013

HEY--> Yesterday, a 12-word Tweet caused the stock market to briefly lose $134 BILLION dollars

I posted about this yesterday and I'm going to post about it today.

From today, In the age of speedy computer trading, a phony tweet and algorithms can send stocks plunging:

NEW YORK — For a few surreal minutes, a mere 12 words on Twitter caused the world’s mightiest stock market to tremble.

No sooner did hackers send a false Associated Press tweet reporting explosions at the White House on Tuesday than investors started dumping stocks — eventually unloading $134 billion worth.

Except most of the investors weren’t human. They were computers, selling on autopilot beyond the control of humans, like a scene from a sci-fi horror film.

“Before you could blink, it was over,” said Joe Saluzzi, co-founder of Themis Trading and an outspoken critic of high-speed computerized trading. “With people, you wouldn’t have this type of reaction.”

For decades, computers have been sorting through data and news to help investment funds decide whether to buy or sell. But that’s old school. Now “algorithmic” trading programs sift through data, news, even tweets, and execute trades by themselves in fractions of a second, without slowpoke humans getting in the way. More than half of stock trading every day is done this way.

--snip--


Much more at the link(s). Very much worth your time to read.

PB
16 replies = new reply since forum marked as read
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HEY--> Yesterday, a 12-word Tweet caused the stock market to briefly lose $134 BILLION dollars (Original Post) Poll_Blind Apr 2013 OP
There is a big problem here just waiting to explode... kentuck Apr 2013 #1
And it's nothing new, either. This kind of trading has just been ramping up and up, getting... Poll_Blind Apr 2013 #2
And they won't do anything either... progressoid Apr 2013 #10
The problem being laundry_queen Apr 2013 #14
Kinda like electronic voting machines. Scuba Apr 2013 #3
Tick tock, tick tock. Baitball Blogger Apr 2013 #4
One of the more important reasons to place a small tax on each trade Dragonfli Apr 2013 #5
Sounds like a great way to track this. freshwest Apr 2013 #6
+1 Earth_First Apr 2013 #7
Oh Hell Yes! Poll_Blind Apr 2013 #9
Well now they have an explanation when SS zeeland Apr 2013 #8
Pretty scary stuff burnodo Apr 2013 #11
Information is a weapon of mass destruction. Poll_Blind Apr 2013 #13
Fascinating information. mia Apr 2013 #12
Every day, edging a little closer... BobTheSubgenius Apr 2013 #15
I trust whoever did this will be in jail for life BrotherIvan Apr 2013 #16

Poll_Blind

(23,864 posts)
2. And it's nothing new, either. This kind of trading has just been ramping up and up, getting...
Wed Apr 24, 2013, 08:40 PM
Apr 2013

...worse and worse. I have no idea how absurd it gets before the people in "charge" do something about it. I mean, that would make the fake Tweet the most expensive Tweet in history and possibly the most damaging hoax ever released- at $11 billion a word!

PB

progressoid

(49,916 posts)
10. And they won't do anything either...
Wed Apr 24, 2013, 09:35 PM
Apr 2013

until it directly impacts them.

Or when their million dollar donors write some legislation for them to pimp.





laundry_queen

(8,646 posts)
14. The problem being
Wed Apr 24, 2013, 11:22 PM
Apr 2013

is that it already impacts them - just in the opposite way. These automatic triggers make the rich millions and billions of dollars in short periods of times - they've already gained FAR more than they'll ever lose. The people who profit the most from this automated trading are also the same people who are NEVER going to lose THEIR money. The 1% of the 1%.

Baitball Blogger

(46,655 posts)
4. Tick tock, tick tock.
Wed Apr 24, 2013, 08:49 PM
Apr 2013

If this could happen by accident, what can happen when someone knows how to trigger those machines with a "boo!"

Dragonfli

(10,622 posts)
5. One of the more important reasons to place a small tax on each trade
Wed Apr 24, 2013, 09:06 PM
Apr 2013

It would be far less profitable to do mass trading so quickly using bots.

The entire concept of making money on high volume fast speed trading back and forth all day does nothing but leach pennies from huge volume traded at high speed that add up, how can this possibly add to "the market" in any way that isn't negative?

I'm no Gordon Gekko master of the universe, but profiting from producing absolutely nothing at all of any kind of value appears parasitic even when done manually.

zeeland

(247 posts)
8. Well now they have an explanation when SS
Wed Apr 24, 2013, 09:27 PM
Apr 2013

is invested in the market and disappears in a matter of seconds. "oops, must have
been one of those pesky algorithmic glitches."

BrotherIvan

(9,126 posts)
16. I trust whoever did this will be in jail for life
Thu Apr 25, 2013, 05:30 PM
Apr 2013

faster than you can say "bailout," that word that warms every banker's cold, dead heart.

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