UBS ETRACS Celebrates Launch of Risk ON ETN and Risk OFF ETN

UBS ETRACS (NYSE-Listed UBS) visits the NYSE to celebrate the recent launch of the ETRACS Fisher-Gartman Risk On ETN (ONN) and ETRACS Fisher-Gartman Risk Off ETN (OFF). In honor of the occasion, Mark Fisher, Founder and CIO of MBF Asset Management, Dennis Gartman, Editor/Publisher of The Gartman Letter, L.C., Christopher Yeagley, UBS Managing Director and Head of US Equity Structured Products, and the UBS ETRACS team, ring The Opening BellSM.  The November 30, 2011 launch of ONN established an all-time opening-day trading volume record for a new ETN, demonstrating investors’ interest in this ETN.

 Watch a live webcast of The Opening Bell at 9:29 a.m. ET on January 18, 2012. The archive will be available shortly after the event.

ONN and OFF are linked to the daily long and daily inverse performances, respectively, of The Fisher-Gartman Risk Index.  These ETNs provide investors with the ability to implement comprehensive “risk on” and “risk off” trades with the convenience of exchange-traded securities.

About ETRACS:

For further information about ETRACS ETNs, go to http://www.etracs.com.

Exchange Traded Access Securities ETNs (“ETRACS ETNs”), are exchange-traded notes, an innovative class of investment products offering access to markets and strategies that may not be readily available to investors, and offer unique diversification opportunities in a number of different sectors. ETRACS ETNs may offer:

• Access to asset classes with historically low correlations to more traditional asset classes

• Convenience of an exchange-traded security

• Transparent exposure to a published index

ETRACS ETNs are senior unsecured notes issued by UBS AG (“UBS”), are traded on NYSE Arca, and can be bought and sold through a broker or financial advisor. An investment in ETRACS ETNs is subject to a number of risks, including the risk of loss of some or all of the investor’s principal, and is subject to the creditworthiness of UBS. We urge you to read the more detailed explanation of risks described under “Risk Factors” in the prospectus supplement for the ETRACS ETN.

Important Disclosure:

UBS has filed a registration statement (including a prospectus, as supplemented by a prospectus supplement for the offering of the ETRACS ETNs) with the Securities and Exchange Commission (the “SEC”) for the offering to which this communication relates. Before you invest, you should read these documents and any other documents that UBS has filed with the SEC for more complete information about UBS and the offering to which this communication relates. You may get these documents for free by visiting EDGAR on the SEC website at www.sec.gov. Alternatively, you can request the prospectus and the applicable prospectus supplement by calling toll-free (+1-877-387 2275).