About UBS AG ETRACS Gold Shares Covered Call ETNs due February 2, 2033

The index measures the return of a “covered call” strategy on the shares of the SPDR Gold Trust (the “GLD Shares”) by reflecting changes in the price of the GLD Shares and the notional option premiums received from the sale of monthly call options on the GLD Shares less notional trading costs incurred in connection with the covered call strategy.