12 Matching Annotations
  1. Last 7 days
    1. More volatile underlying assets will translate to higher options premiums, because with volatility there is a greater probability that the options will end up in-the-money at expiration.

      That's interesting

    1. The option is European and can only be exercised at expiration.No dividends are paid out during the life of the option.Markets are efficient (i.e., market movements cannot be predicted).There are no transaction costs in buying the option.The risk-free rate and volatility of the underlying are known and constant.The returns on the underlying are normally distributed.

      Some of the assumptions underlying the Black-Scholes model. Do these limit its realism and predictive power?

  2. Nov 2019
    1. From the man pages The environment variables can be specified in lower case or upper case. The lower case version has precedence. http_proxy is an exception as it is only available in lower case. Using an environment variable to set the proxy has the same effect as using the --proxy option
  3. Sep 2019
  4. Nov 2018
  5. Jan 2018
    1. Default Value

      Please note that the values listed below are the default ones. An Option can represent a Boolean toggle flag (i.e. HeapDumpOnOutOfMemoryError, PrintConcurrentLocks). For such Options, '+' and '-' flags deal with Boolean toggling. In short:

      • '+' means Enable (or set to '1');
      • '-' means Disable (or set to '0').

      For example, in the table pertaining to Debugging Options, by default the -XX:-HeapDumpOnOutOfMemoryError is Disabled, because it has the - prepended to it. To actually Enable it, change that with +, yielding the variant -XX:+HeapDumpOnOutOfMemoryError.

  6. Sep 2016
    1. they are wrestling with how to get more Latinos to pick a race. In 2010, they tested different wording in questions and last year they held focus groups, with a report on the research scheduled to be released by this summer.

      Why do they want to force latinos to pick one race?? There are so many different microcultures and sub groups that latinos are included in, the Census would have to add so many more options.

  7. Feb 2014
    1. The other way to help these students would be to dramatically reduce the price or time required to get an education of acceptable quality (and for acceptable read “enabling the student to get a better job”, their commonest goal.) This is a worse option in every respect except one, which is that it may be possible.
  8. Jan 2014
    1. We distributed options every month, at a slight discount from the market price. We had no vesting period—the options could be cashed in immediately. Most tech companies have a four-year vesting schedule and try to use options as “golden handcuffs” to aid retention, but we never thought that made sense. If you see a better opportunity elsewhere, you should be allowed to take what you’ve earned and leave. If you no longer want to work with us, we don’t want to hold you hostage.