If one owned in Yahoo!, and incurred trades loss, what in record applies to dollars & time loss attributes?

Question

Reference a completed purchase followed with a crash party expedite to change of hands.

Answer 1

First off, you need to sell in order to recognize your gain or loss.

If you were trading Yahoo! (or any other stock), you have several options as to how to account for your cost basis.  Most people use first in, first out, though others use dollar cost averaging.

You might check out investopedia for some additional info.

Best of luck!