USB PRA has been halted from trading since June 18, 2010, based on information indicating that the prices at which the shares were trading were not reasonably related to the market value of such shares and following information that the allocation of shares associated with an exchange offer for USB PRA had been adjusted. The NYSE has filed an immediately effective interpretation to Rule 128(g) with the Securities and Exchange Commission, which clarifies that an Officer of the Exchange may review the transactions such as those that occurred in USB PRA on June 16, 17, and 18, 2010, and declare them null and void.

Pursuant to that interpretation, the NYSE will nullify the trades on those dates prior to the re-opening of trading now scheduled for Friday, July 30, 2010.

NYSE Rule Filing SR-2010-55
NYSE Trader - July 23, 2010
NYSE Trader - June 30, 2010