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Re:“Buy and Hold” No More: The Resurgence of Active Trading by baq on Saturday April 10, 2021 @04:05PM (#26764639)
except it isn't: if enough gamblers stick to one ticker, they can break the market. options aren't roulette and stocks aren't blackjack. casinos don't have this failure mode.

gamestop was the example of what happens in the limit - only the DTCC prevented a global financial crisis as a circuit breaker of last resort.

Re:“Buy and Hold” No More: The Resurgence of Active Trading by nly on Saturday April 10, 2021 @05:33PM (#26765333)
Sports bookmakers will ban your ass if you look to be any kind of sharp, or engage in arbitrage (exploiting their slow pricing).

Casinos wont let you put a billion $$$ on red or black just because they have a 1/37 edge on the roulette wheel. That variance is to high.

There are failure modes

Re:“Buy and Hold” No More: The Resurgence of Active Trading by baq on Sunday April 11, 2021 @02:00PM (#26772155)
Fair points. I had options in mind, casinos don’t have derivative bets afaik...
Re:“Buy and Hold” No More: The Resurgence of Active Trading by kreeben on Saturday April 10, 2021 @04:40PM (#26764941)
If enough retailers work in concert they start to resemble HF's.

>> if enough gamblers stick to one ticker, they can break the market

HF's, I assume, has had this power all along and they probably tried more than once to break the market.

So, what's the difference then, between internet hive minds and HFs and why should one take more blame than the other when it comes to "breaking things"?

Re:“Buy and Hold” No More: The Resurgence of Active Trading by baq on Sunday April 11, 2021 @12:05PM (#26771298)
More call options expiring in the money than shares available for example.
Re:“Buy and Hold” No More: The Resurgence of Active Trading by cortesoft on Saturday April 10, 2021 @07:02PM (#26766068)
Casinos absolutely have that failure mode (which is why there are table limits)

Casinos need to ensure that they have enough liquidity to withstand a large bet hitting. The law of large numbers only works if you can survive the short term swings.

Re:“Buy and Hold” No More: The Resurgence of Active Trading by baq on Sunday April 11, 2021 @01:47PM (#26772071)
Fair point. In case of GameStop it was more like a casino running out of chips and being obliged to get them at any price. A real casino would simply stop letting people in... and that’s what happened with the help of DTCC.
Re:“Buy and Hold” No More: The Resurgence of Active Trading by ric2b on Sunday April 11, 2021 @10:30AM (#26770592)
> gamestop was the example of what happens in the limit - only the DTCC prevented a global financial crisis as a circuit breaker of last resort.

Nonsense, a few private funds losing a lot of money is not a financial crisis, it's just another Tuesday.

Re:“Buy and Hold” No More: The Resurgence of Active Trading by baq on Sunday April 11, 2021 @12:10PM (#26771346)
A few hedge funds losing 50% is not what I had in mind. Brokers going broke is that.
Re:“Buy and Hold” No More: The Resurgence of Active Trading by atat7024 on Saturday April 10, 2021 @11:42PM (#26767320)
> only the DTCC prevented a global financial crisis

True heroes. God love em.

Re:“Buy and Hold” No More: The Resurgence of Active Trading by LatteLazy on Sunday April 11, 2021 @09:31AM (#26770234)
People broke the market on GME, but then they got rinsed for it. Hardly a win...
Re:“Buy and Hold” No More: The Resurgence of Active Trading by baq on Sunday April 11, 2021 @12:07PM (#26771318)
They almost did. Market owners decided they won’t have it that way, as they should or there would be many more losers.
Re:“Buy and Hold” No More: The Resurgence of Active Trading by LatteLazy on Sunday April 11, 2021 @02:23PM (#26772322)
The market owners weren't involved. The clearing company have been accused of "helping" hedge funds. But that's a conspiracy theory really...
Re:“Buy and Hold” No More: The Resurgence of Active Trading by baq on Monday April 12, 2021 @04:44AM (#26777192)
The accusations don't make much sense in the context of helping hedge funds. They were preventing brokers and option market makers from default.

(Friendly reminder that the DTCC is basically owned by "Wall Street".)