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NYSE/NYSE MKT has temporarily suspended trading in all symbols

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151–155 of 155 posts

Re: NYSE/NYSE MKT has temporarily suspended trading in all symbols

#152

Earlier quoted context omitted.

Yeah, but that is Zero Hedge's audience though: the upper echelon, rarified air, pure-bred market conspiracy theorist. What surprised me is seeing it start to creep in HN in such a volume.

funny description. i wasn't familiar with them until today but it's fascinating.

I've read ZH for six years, it used to be much better until the tinfoil hat, buy gold now brigade took over.

Re: NYSE/NYSE MKT has temporarily suspended trading in all symbols

#153

Earlier quoted context omitted.

funny description. i wasn't familiar with them until today but it's fascinating.

I've read ZH for six years, it used to be much better until the tinfoil hat, buy gold now brigade took over.

And occasionally it still can be - the odd nugget of outside analysis and opinion from anyone but "Tyler," mainly. Don't get me wrong, I enjoy Zero Hedge these days too, but mainly for entertainment value than anything actually insightful.

Re: NYSE/NYSE MKT has temporarily suspended trading in all symbols

#154
post #136
post #93

Earlier quoted context omitted.

> In my view, Occam's razor might indicate that coincidence is unlikely, and that the two major incidents in US on the same day China's market crash suggest it's a state sponsored cyber attack. Occam's razor calls for an explanation that does not require the unneeded introduction of a new variable. If you need a state sponsored cyber attack as the alternative explanation, the coincidence theory should be preferred.

http://map.norsecorp.com/ Cyberattacks originating from China is not a new variable

> Cyberattacks originating from China is not a new variable

Sure, but its mere existence in other contexts does not automatically make it the cause of the NYSE etc. glitches. The assumption of causal relationship without any proof is what violates Occam's razor.

(And that map, while pretty, does not proof state sponsored cyber attacks. If I rented myself a $5 VPN account to Russia and then nmap whitehouse.gov, I would appear in that map as an attacker from Russia.)

Re: NYSE/NYSE MKT has temporarily suspended trading in all symbols

#155

This isn't much of an issue for traders That's a nice benefit of having 40+ trading venues in the US. They had problems at the open as well with connectivity on one of their gateways. Issues like this crop up all the time and most of the time they are resolved before the open. The good news is that they aren't reporting any lost trades or trade busts yet so this isn't as bad as the BATS open at BATS:) Having said tha…

I'm really happy to see that they're canceling all open orders. It's much better than letting them stick around and then execute with unexpected behavior. It looks like NYSE learned from what happened related the FB opening (just as you alluded to), and what happened with Knight around the same time. Playing it safe can be a smart move, even in the stock market.

My immediate reaction is that their system shouldn't require canceling all open orders. But I admit that I don't know much about matching engines.

If they roll out a new version of the module that creates orders, I would think it makes sense to include the version of this order module in the order data structure. This way they can delete only the bad orders, created by the faulty module version, instead of all open orders. But it's also possible that I'm way in over my head here :).

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