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What's the catch? Usually outfits that offer "free, just pay shipping and handling" books keep your credt card info and begin to send you unsolicited, expensive additional material.

OP evidently didn't see the heading at the top of the list of a dozen documents that said "only one document per category is needed".

The problem with options and newbies is that they'll often be drawn to options on a stock that's just made a large move which they expect to be reversed. They'll buy options with large IV, then watch as the stock either doesn't go in their desired direction and the options expire worthless, or...

Yeah! Can you believe they made an OS called Windows? Named after things that break? I can't imagine anyone buying a copy.

Make the buyer sign a license agreement. People who want to look at your code will do it anyway, no matter how well you try to protect it, but if they violate your license agreement at least you have some legal recourse.

Cool. Any downside to having IB enable this for you?

Note that it was 2 years from the original Belgian court decision until the higher court overruled it. How long do you expect it will take in China?

Everyone lets you trade using unsettled funds unless you're in the 90-day penalty box for free-riding, but you're still liable for free-riding violations (which are triggered by selling an equity bought with unsettled funds that are still unsettled at the time of sale). Are you saying that IB...

The market is acting bearish because much of NUS's value is tied to how well it continues to expand in China over the near term. According to a Reuters article today, "the company's sales in Greater China more than tripled to $464.6 million in its quarter ended September 30. The region...

Several weeks ago, I used Tax Optimizer to set my account's Default Match Method to LIFO, for futures, equities, and options. I just verified that it's still set to LIFO. But in TWS, the values in the Realized P&L column in each Quote Monitor page and in the Account Window appear to be based on...

Holy cow. Four swings of 6% or larger today and we've still got an hour left. January options IV are around 100, which I suppose is underpriced.

In TWS Latest (942.1e), a 1-day (or shorter) intraday (e.g. 1day/1min) chart for a US equity option doesn't show any bids and asks prior to the first trade of the day. An intraday chart for a US equity option that has yet to have a trade is totally blank. Since I like to watch the bid-ask spread...

Do you get the "adding liquidity" rebate only if your order gets executed while it is still the sole NBBO? If an option is at $3.00x$3.20 and I put in an order to buy at $3.10 and some MM's then move their bids to $3.10 and some of their orders get filled and eventually my order gets filled, do...

Very good point. Any speedup would need to come from intelligent read-ahead and write-behind done by Linux's extfs driver. VM hypervisors can also mount a portion of the host system's filesystem on the guest, so you could set things up so a Windows swap file is an ext file, but I can't...

You can also use a clamp meter. That's what our comp center guys use.

There are undoubtedly papers published by the hypervisor vendors that cover this, but I don't have any references offhand. The overhead comes from a few areas where they can't let the virtual machine's instructions run unimpeded: virtual memory accesses (segmenting, page tables); privileged...

DELL's buyout was approved. It has spent the last few days trading millions of shares with a daily trading range of just one cent - $13.83 to $13.84. Why are people trading this with such high volume? Options volume is almost nil - just a few $13 puts being traded for a penny or two, so it...

You can install a VM system on Linux such as VMware or VirtualBox, and then install Windows in a virtual machine. The Windows system will then run using the Linux filesystem (the entire C: drive will be represented by one or several large Linux files). On modern CPUs that have VT support, the...

Great summary, just one clarification: living in California wouldn't have made a difference. BSD was encumbered (not free of AT&T source code to the degree that AT&T wanted) until 1994, and Linux was developed and released a few years before that. So we can probably thank AT&T's lawyers for...

A sudden downdraft or updraft where bids or asks disappear can cause this. Many years ago I had an order open for several weeks to buy LU at $20. One day there was a crash in the middle of the session and I got filled at 19 3/4. (I don't think it ever got above 20 again :mad: )