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Was HFT Responsible For Investors' Massive Dendreon Losses?

Tyler Durden's picture




Yet more dusty footprints of High Frequency Trading's shadow domination of markets emerges, courtesy of Matt Goldstein's latest column "The victims of high-frequency trading." Matt focuses on the blatant example of a self-perpetuating myth, driven exclusively by reinforcing algorithms in the April 27 collapse of Dendreon stock, which dropped by 70% in 70 seconds. Bloomberg did a good summary of the events that cost many DNDN investors hundreds of thousands in losses, and which now, five months after the event, the regulators have still not disclosed any additional data to bring this presumably aberrant event to closure.

More than 3 million Dendreon shares changed hands as the
stock fell from $24.25 to as low as $7.50 in 70 seconds, before
trading was halted at 1:27 p.m. in New York, according to data
compiled by Bloomberg. In the first 20 seconds of the sell-off,
more than 260,000 shares were sold at the so-called bid price,
or about 60 percent of the total, showing investors were willing
to accept almost any offer to unload the stock.

Matt provides a different angle on the story: that from the rightful angle of the primary culprit of this dramatic and exacerbated drop in which market makers were supposed to step in... but did not, because they were simply a bunch of computer programs that had no mandate to provide liquidity.

There has been speculation that short sellers, traders who look to profit from the stock’s plunge, spread a rumor that Dendreon was going to report poor test results for its cancer-fighting drug. Others theorize that a broker incorrectly typed in an outsized sell order, which panicked others in the market.

But no matter what the precipitated the sell-off, it’s likely that high-frequency trading magnified it-given that these automated trading programs control more than half of the daily stock trading in the United States.

Some of the algorithmic programs that drive high-frequency trading desks are designed to spot an unusual trading trend — such as a sudden decline in a stock’s price-and jump on it. Other programs, meanwhile, are written to automatically cancel bids to buy fast-falling stocks in order to minimize losses.

“If an HFT guy steps away from a stock, that can drive it down,” says Joe Saluzzi, a co-founder of Themis Trading in Chatham, NJ and an outspoken critic of superfast computer-trading. “It’s not necessarily the shorts pressing a stock down, it’s also because of bids disappearing.”

It’s all perfectly logical from a trading perspective. But when these two strategies come together, it can create a vacuum-like force that allows a stock to plunge in a short span of time. This is the kind of unintended systemic shock to the markets that has got critics and even some advocates of high-frequency trading nervous.

Goldstein's cautionary conclusion confirms the same concerns that Zero Hedge has been voicing for months about potential risks associated with the reckless (and riskless) propagation of quantitive strategies, which can shut down on a moment's notice, creating one systemic Dendreon repeat for the entire market.

Yet it’s not clear securities regulators are sufficiently worried about the potential systemic risk posed by high-frequency trading. And that should worry everyone.

When regulators talk about high-frequency trading they often focus on seemingly obscure things like whether traders should be able to put their computers close to the stock exchange to maximize trading speed, or buy and sell shares through less-than-transparent “dark pools”. These are all important issues, to be sure.

Yet they pale when compared with the threat of a high-frequency trading program sparking a sudden and inexplicable sell-off in a stock.

That’s why it’s imperative for regulators to come clean with what, if anything, they know about the events that led to the April 28 debacle in Dendreon shares.

It’s been five months since that event, and investors are entitled to answers.

We agree.




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Mon, 10/12/2009 - 19:07 | Link to Comment Marge N Call
Marge N Call's picture

Follow this example to its logical conclusion and you will arrive at the reason why Vladimir Putin is BY FAR the richest man in the world (please, anyone who disagrees is simply a fool). Pay attention people.

 

Mon, 10/12/2009 - 19:21 | Link to Comment Careless Whisper
Careless Whisper's picture

Friday morning. August 2000. Most traders already in the Hamptons. Bogus press release picked up by Bloomberg. Emulex drops from 113 to 43. Took about 5 minutes.

http://www.museumofhoaxes.com/hoax/Hoaxipedia/Emulex_Stockmarket_Hoax/

 

Mon, 10/12/2009 - 19:53 | Link to Comment Anonymous
Mon, 10/12/2009 - 19:30 | Link to Comment Anonymous
Mon, 10/12/2009 - 19:32 | Link to Comment Anonymous
Mon, 10/12/2009 - 19:35 | Link to Comment Anonymous
Mon, 10/12/2009 - 19:40 | Link to Comment Anonymous
Tue, 10/13/2009 - 05:09 | Link to Comment Cognitive Dissonance
Cognitive Dissonance's picture

When the profit (most would say crime) wasn't directed by and beneficial to the "made" boys of Wall Street, it's truly breath taking how quickly the SEC, FBI etc are on the job protecting Wall St......er....Americans from those bad bad people. 

Mon, 10/12/2009 - 19:46 | Link to Comment Anonymous
Mon, 10/12/2009 - 20:08 | Link to Comment Steak
Steak's picture

It really sucks but I feel you, stop orders afford no protection from moves of this type.  The vanilla stop order puts in a market order to sell once a threshold has been crossed...but if the stock is falling like a rock the fill price can be substantially lower than the stop.  One can also use the stop-limit which puts in a limit order to sell at the threshold price once crossed...but if bids dissappear then your order will never get filled and you'll be riding that thing down to the bottom unless you can adjust course in a matter of seconds.

Individual Investors 0 - Algos 1

Tue, 10/13/2009 - 04:39 | Link to Comment i.knoknot
i.knoknot's picture

don't even mention the market-open gaps... up or down. stops be damned - no safe haven to be found.

i *really* hate it when it gaps down, triggers our stops, then recovers, after we've been shaken out... just kills ya.

Tue, 10/13/2009 - 05:16 | Link to Comment Cognitive Dissonance
Cognitive Dissonance's picture

Just like the Fed sees all the banks' books and thus can game the markets, don't you think GS and friends (with a little help from the ultimate friend the Fed) might have HFT software algos to take advantage of stops, which are usually set at certain technical levels?

Regardless of your thinking about how or even if technical analysis works, if enough people follow it, it works simply because enough people follow (and act on) it. Which means GS and friends are on it.

Tue, 10/13/2009 - 08:51 | Link to Comment Bearish Spirits
Bearish Spirits's picture

Two of my favorite "v-shaped" movements rescued by the algos this summer were BAC on the day the SEC settlement was announced and PharMerica when the FDA supposedly raided them. 

Steep multi-percent drops off a cliff which were buoyed just as quickly and recovered to a higher price than before the fall...all within maybe a half hour.

Tue, 10/13/2009 - 11:45 | Link to Comment calltoaccount
calltoaccount's picture

Comprehensive detailed names named report on organized hedge fund criminal conspiracy to destroy DNDN, HFT just one part of the MO. 

 

Michael Milken, 60,000 Deaths, and the Story of Dendreon (Chapter 1 of 15)

 

at: http://www.deepcapture.com/michael-milken-60000-deaths-and-the-story-of-...

Mon, 10/12/2009 - 19:57 | Link to Comment Anonymous
Mon, 10/12/2009 - 20:27 | Link to Comment overbet
overbet's picture

They bust these erroneous trades anyway do they not? I have had many trades busted on me where I had bids and offers away from the market by too much. I understand the point is the lack of liquidity but if the trades are busted is there really hundreds of thousands lost by investors?

Mon, 10/12/2009 - 20:54 | Link to Comment Hansel
Hansel's picture

The DNDN trades stood.

Mon, 10/12/2009 - 20:56 | Link to Comment Anonymous
Mon, 10/12/2009 - 20:34 | Link to Comment Anonymous
Mon, 10/12/2009 - 20:37 | Link to Comment tonytiger
tonytiger's picture

Copnsidering that only 118 million shares of SPY were traded today, could it be next?  All they have to do is stop bidding.  The rest will be history.

Mon, 10/12/2009 - 20:55 | Link to Comment peterpeter
peterpeter's picture

> ... But it’s a bitter pill to swallow when you consider that Dendreon shares quickly rebounded from their pre-crash level after the company reported generally positive test results and trading resumed

Damn those HFT machines!  They drove the price of the stock back up to non-rumor level prices as soon as the rumours were debunked.

I fail to see the issue here WRT computers.  The SEC should investigate if someone shorted and spread a rumour of a failed drug trial.  Whether it was computers or J6P selling after that rumour is not relevant.

Mon, 10/12/2009 - 20:59 | Link to Comment Cheeky Bastard
Cheeky Bastard's picture

well well well; look who crawl out of his GS subsidized PR hole. welcome back !

Mon, 10/12/2009 - 22:10 | Link to Comment Careless Whisper
Careless Whisper's picture

Cheeky is en fuego.

Mon, 10/12/2009 - 21:53 | Link to Comment _Biggs_
_Biggs_'s picture

Wow.  Great argument.  The average IQ on this site just dropped about 50 points.

Tue, 10/13/2009 - 05:23 | Link to Comment Cognitive Dissonance
Cognitive Dissonance's picture

If you're going to dis an article, at least use some logic. Or wry humor. Or both.

But to try and slip the premise by us that since the price returned to where it started, in effect saying "move along, nothing to see here, all is good and nothing illegal happened," is just plain stoooooopid.

Tue, 10/13/2009 - 09:03 | Link to Comment peterpeter
peterpeter's picture

That was not my point.  There was of course something to see.... but I don't understand why anyone is focusing on the computers.

Rather - humans and computers on a baseless rumour together moved a stock price, and then when the rumour was debased, they move the price back.... so the culprit is whomever created the initial panic with a false rumour.

Now - if one of you believe that the computers sparked this rumour, then I see your point about blaming this issue on HFT (but suggest you go back on your meds).

Otherwise, the issue here is a plain and simple human initiated stock manipulation.

History is rife with examples that predate the invention of the computer (let alone using them to trade) with movements of that magnitude in equity pricing... and single (or small number) product bio-tech companies in development or testing are always going to be the whipping boy of rumours, regardless of who is trading them.

If anyone here believes that a human specialist quoting in fractions would have maintained an orderly book for this stock in the wake of that rumour, I suggest you are wrong, and that you read Edward Chanellor's excellent book Devil Take the Hindmost, which chronicles several hundred years of speculative market activity.

Oddly and on a slightly different thread - I doubt that retail investors short this stock who lost their money on a floated rumour of a successful drug test would have be worthy of an article... since we are only supposed to have sympathy for long only investors.

Tue, 10/13/2009 - 20:29 | Link to Comment _Biggs_
_Biggs_'s picture

The point is that the computers did not provide liquidity as touted by the trumpeteers....and in fact contributed to excessive downside.  Your argument is like saying since Jesus Christ says take my body and blood...he is a cannibal. 

Mon, 10/12/2009 - 20:58 | Link to Comment Hephasteus
Hephasteus's picture

70 seconds? By 2020 they can do that kind of a dump in 28 seconds flat.

Mon, 10/12/2009 - 21:55 | Link to Comment Anonymous
Mon, 10/12/2009 - 22:03 | Link to Comment davster
Tue, 10/13/2009 - 04:32 | Link to Comment Optimystic
Optimystic's picture

I remember the day well as I owned 17k shares, but fortunately, no stops in place.  This was a planned bear raid perhaps facilated by HFT.  Our regulators are captured. 

Mon, 10/12/2009 - 22:09 | Link to Comment Anonymous
Tue, 10/13/2009 - 00:17 | Link to Comment KidDynamite
KidDynamite's picture

please don't try to reason with the mob - just pick up a pitchfork and get in line. 

Mon, 10/12/2009 - 22:16 | Link to Comment rr_
rr_'s picture

Check out Patrick O'Byrne, Mark Mitchell, Bagley et al. on the Dendreon story. http://www.deepcapture.com/

Mon, 10/12/2009 - 22:30 | Link to Comment Anonymous
Mon, 10/12/2009 - 23:13 | Link to Comment Bear
Bear's picture

“Yet they pale when compared with the threat of a high-frequency trading program sparking a sudden and inexplicable sell-off in a stock” … A STOCK … what if the whole market has simultaneous sell off precipitated by some external event or black swan sighting?

As newly created 'program trading' was a contributing factor to October 19, 1987, newly created HFT could inflict instant death … Beware 10/26/2009

Tue, 10/13/2009 - 00:14 | Link to Comment KidDynamite
KidDynamite's picture

"Others theorize that a broker incorrectly typed in an outsized sell order, which panicked others in the market."  wait - so the risk IS that traders fuck up and fat-finger outsized orders - NOT that Skynet (HFT) becomes self aware - right?  right... i thought so...

 

Tue, 10/13/2009 - 04:50 | Link to Comment Cheeky Bastard
Cheeky Bastard's picture

You guys are really fucking annoying; if you don't like this place, and with all the evidence provided, and with the ( i hope ) legislation in place, still make praise of HFT, then why the fuck do you even bother with us un-educated non-HFT peasants. Why don't you just fuck off to Jim Cramer's web site and scream booooooooyah all day long ?

Tue, 10/13/2009 - 07:42 | Link to Comment Anonymous
Tue, 10/13/2009 - 09:30 | Link to Comment KidDynamite
KidDynamite's picture

"you guys" ??? who's that Cheeky - anyone who disagrees with you or doesn't write "AWESOME ONE CHEEKY!" or "CHEEKY IS ON FIRE!" in response to your comments? 

I am confident that the comments i leave on ZH posts will make anyone who takes 30 seconds to read them and THINK about them smarter and more educated on the subjects at hand.  And that's important, because the mob mentality overrides the common sense, and it gets dangerous.

 

The point of my comment above was just to point out ANOTHER Inconsistency - as ZH has another post up yesterday about how there is so much risk that algo's can go crazy and have an error impacting stock prices, when AGAIN, this post explains that it's the humans that have errors - not the computers.

 

I know all of "you guys" hate HFT - but to use DNDN as an example is patently absurd.

 

Tue, 10/13/2009 - 09:39 | Link to Comment peterpeter
peterpeter's picture

KD +10000!!!

</echo_chamber_stupidity_sarcasm>

Wed, 10/14/2009 - 12:46 | Link to Comment Ducky
Ducky's picture

Had computer troubles when this was posted yesterday.

It is not absurd to blame a 70 second drop on HFT and as a defender of HFT I will say that this is what happens if you don't have the proper speedbumps.

Forget any illusion that floor brokers on the NYSE would step in and provide liquidity in the middle of a plunge. Not how they got those houses in the Hamptons. A post '87 crash investigation found that they did not provide liquidity depsite the mandate.

Equity futures used to have a 2% downside limit. Then you had a trading halt and expanded the limit. SPY made theirs 5%. Exchanges got the CFTC to change the limits to match @5%.

When thing get faster you need better speed bumps. HFT should wise-up and get on board. You are much more likely to get price limit changes than you are to eliminate HFT all together.

Tue, 10/13/2009 - 00:42 | Link to Comment Anonymous
Tue, 10/13/2009 - 07:56 | Link to Comment Anonymous
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