Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

Deal with stock PSEC
It looks like it has to deal with an expiration of rights as a taxable event. I found this link via google, which states that  Not only does the PSEC shareholder have a TAXABLE EVENT, but he has   TWO taxable events. The net effect of these two taxable events has   DIFFERENT CONSEQUENCES for DIFFERENT SHAREHOLDERS depending upon their   peculiar TAX SITUATIONS. The CORRECT STATEMENT of the tax treatment of unexercised PYLDR rights   is in the N-2 on page 32, which reads in relevant part as follows: “…, if you receive a Subscription Right from PSEC and do not sell or   exercise that right before it expires, you should generally expect to   have (1) taxable dividend income equal to the fair market value (if   any) of the Subscription Right on the date of its distribution by PSEC   to the extent of PSEC’s current and accumulated earnings and profits   and (2) a capital loss upon the expiration of such right in an amount   equal to your adjusted tax basis (if any) in such right (which should   generally equal the fair market value (if any) of the Subscription   Right on the date of its distribution by PSEC).” Please note, for quarterly “estimated taxes” purposes, that the   DIVIDEND taxable events occur “ON THE DATE OF ITS DISTRIBUTION BY PSEC   (my emphasis),” while the CAPITAL LOSS occurs “UPON EXPIRATION OF SUCH   RIGHT” (my emphasis). They do NOT occur on 31 December 2015 or some   other date. However, to my knowledge, neither of the taxable events he mentions would be taxed by 4/15. If you are worried about it, I would recommend seeing a tax professional. Otherwise I'd wait to see the tax forms sent by your brokerage.