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    Credit Cards

    That was for illustrative purposes to show that "writing off" a cost doesn't magically make a cost go away. If 95% of your customers use credit cards and your merchant rate is 2%, then it costs you an additional 1.9% to sell your product. If you started out with a 10% profit margin, credit cards...
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    How many here started in their 40's?

    I think he's confusing malpractice with an operation that simply doesn't achieve the desired results. I know someone who had shoulder surgery for persistent pain in their shoulder. They were informed before the surgery that it had a 85% success rate, and unfortunately for them they were in the...
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    Interactive Brokers fails Risk Management 101

    It's not a matter of it being unjust. It's a matter of it not doing what it purports to do. No one has a problem with a company being prudent in risk management. As the OP clearly detailed, IB is being ridiculous in the matter of some not very risky assets and completely ignoring the risk in...
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    Credit Cards

    "Writing off" an expense doesn't make it go away. If you sell something for $100 that cost you $99 to sell with a 1.9% merchant fee you just lost money, write-off or no! Since the vast majority of purchases in most businesses are by credit card any company that has even a basic grasp of pricing...
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    Why did the market let me profit?

    Are you sure you didn't actually buy at 10.35 and sell at 9.90? I've actually gotten my bids and asks confused at the end of a long day before, you wouldn't be the first one of us to have that happen.
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    Interactive Brokers fails Risk Management 101

    You're right, fire all your customers who nicely request that you explain your incoherent policies instead of perhaps looking at if the policies make sense. Great idea, if they dare point out that his royal highness is wearing no clothes they clearly have a less than ideal "attitude". While...
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    NY Court Reinstates Ex-GS Programmer's Criminal Conviction

    Reading the article is actually far scarier for a business owner in my position. To wit "Until Serge was sent to jail for doing it, Wall Street programmers routinely took code they had worked on when they left for new jobs." That's complete and utter crap. If I pay you to develop code for me it...
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    Interactive Brokers fails Risk Management 101

    I think the pejorative term you were looking for was "retarded", that way you can get an insult in on the mentally challenged as well as me? -Can you explain why a debit spread on ES, where I've paid the full premium in advance and can never lose more than that premium should charge margin at...
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    Interactive Brokers fails Risk Management 101

    Great. You can't dispute the policies I listed or the complete and utter lack of logic behind them, but in your case and perhaps others you're not impacted by them and you're OK with working with a company run by people of that intellectual caliber. Certainly you're aware of it and have decided...
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    When do you think AI will dominate trading field?

    The house, or in this case the market makers, brokers, and exchanges along with all the infrastructure that goes with it.
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    How many here started in their 40's?

    Good luck with being the only person in history to win that kind of case!
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    How many here started in their 40's?

    If you're claiming a significant portion of the hedge fund industry is a Madoff style Ponzi scheme with no proof you're just being a troll. If you're not claiming that then what is your point exactly?
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    Overnight trading in SPX and VIX options

    It's relatively new for SPX and VIX options.
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    Interactive Brokers fails Risk Management 101

    TOS is cheaper for SPX options, OptionsXpress also can be competitive depending on your schedule.
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    U.S. tech leaders sound alarm over Trump immigration ban

    I'm also an American with an EE from a decent school, and I hire the same. It's virtually impossible to hire someone like you or I for less than twice what I'd pay to hire a civil or mechanical engineer with the same background. That's a classic shortage situation. You like that obviously, it...
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    Interactive Brokers fails Risk Management 101

    This was very typical of all my interactions with these clowns before I left. First their customer service tells you something that is just point blank, 100% wrong. They suffer no consequence for this. Then, in my experience they defend this just obviously silly incorrect statement long past any...
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    NY Court Reinstates Ex-GS Programmer's Criminal Conviction

    I'm a guy who pays people to develop software for my company. We use open source software in some of what we do (in accordance with their licenses). I'll defend the right of any company like mine, including GS, to take legal action against someone who steals code they and other employees of mine...
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    Analysts Can't Figure Out Alphabet's Puzzling $320 Million Charge

    Are they improperly accounting for issued stock options? Pretty much the entire Fortune 500 issued stock options, tech companies even more so. Are they doing something unusual here?
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    NY Court Reinstates Ex-GS Programmer's Criminal Conviction

    He's not being prosecuted for that (releasing the GS source code to open source), first of all. He's being prosecuted for stealing GS source code. And you absolutely do not have the right to release proprietary code developed on a company's dime to open source just because you have some lofty...
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    NY Court Reinstates Ex-GS Programmer's Criminal Conviction

    You better tell Red Hat they can't be selling their improvement to Linux then! The idea that open source software can't be used as a competent of any commercial use software is absurd. Does it have to be attributed, absolutely. Does GS failing to attribute internal use software justify an...
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