ETRACS Whitney US Critical Technologies ETN

Key Considerations

Selected risk considerations:

An investment in the ETRACS ETNs involves risks. Selected risks are summarized here, but we urge you to read the more detailed explanation of risks described in the "Risk Factors" section of the prospectus supplement for the ETRACS ETNs (the "ETRACS Prospectus"). Capitalized terms used below but not defined herein shall have the meanings attributed to them in the ETRACS Prospectus.

You may lose all or a substantial portion of your investment — The ETNs do not guarantee any return on your initial investment and are fully exposed to any decline in the level of the Index. The negative effect of the Daily Tracking Fee and, in the case of early redemption at your option, the Redemption Fee Amount, will reduce your final payment. If the increase in the level of the Index (as measured by the Index Closing Level at the end of the applicable Measurement Period or on the Redemption Valuation Date, as applicable, as compared to the initial Index Closing Level (or the Index level at the time you purchase the ETNs, as applicable)) is insufficient to offset the negative effect of the Daily Tracking Fee and, in the case of early redemption at your option, the Redemption Fee Amount, or if the final Index Closing Level is less than the initial Index Closing Level (or the Index level at the time you purchase the ETNs, as applicable), you may lose all or a substantial portion of your investment at maturity or call, or upon early redemption.

The ETNs are not suitable for all investors. In particular, the ETNs should be purchased only by sophisticated investors who are willing to actively and continuously monitor their investment, and who understand how path dependence affects the value of the ETN — The ETNs require an understanding of path dependence of investment results and are intended to be used as part of an overall diversified portfolio. The ETNs are fully exposed to any decline in the level of the Index, and your payment at maturity or call, or upon early redemption, is linked to the performance of the Index. The Daily Tracking Fee also takes into account the performance of the Index, as measured by the Closing Indicative Value and Index Factor, and the absolute level of the Daily Tracking Fee is dependent on the path taken by the Index to arrive at its ending level on any date of determination.

Market risk — The return on the ETNs, which may be positive or negative, is linked to the return on the Index as measured by the Index Factor, and which, in turn, is affected by a variety of market and economic factors, currency exchange rates, interest rates in the markets and economic, financial, political, regulatory, judicial or other events (including the outbreak of contagious or pandemic diseases, or geopolitical conflict).

Credit of issuer — The ETNs are senior unsecured debt obligations of the issuer, UBS, and are not, either directly or indirectly, an obligation of or guaranteed by any third party. Any payment to be made on the ETNs, depends on the ability of UBS to satisfy its obligations as they come due. As a result, the actual and perceived creditworthiness of UBS will affect the market value, if any, of the ETNs prior to maturity, early redemption or call. In addition, in the event UBS were to default on its obligations, you may not receive any amounts owed to you under the terms of the ETNs. The ETNs do not benefit from any co-obligation of UBS Switzerland AG.

We have potential conflicts – We and our affiliates play a variety of roles in connection with the issuance of the ETNs, including acting as Security Calculation Agent. As determinations by the Security Calculation Agent may adversely affect the market value of the ETNs, the Security Calculation Agent may have a conflict of interest if it needs to make any such determination.

You will not receive any coupon payment — You will not receive any coupon payment on the ETNs.

There may not be an active trading market for the ETNs — Although the ETNs have been approved for listing, subject to official notice of issuance, on New York Stock Exchange (“NYSE”) Arca, a trading market for the ETNs may not develop. In addition, NYSE Arca may halt trading at any time. Certain affiliates of UBS may engage in limited purchase and resale transactions in the ETNs, although they are not required to and may stop at any time. We are not required to maintain any listing of the ETNs on NYSE Arca or any other exchange. In addition, we are not obliged to, and may not, sell the full aggregate principal amount of the ETNs set forth on the cover of the ETRACS Prospectus. We may issue and sell additional ETNs from time to time and we may suspend, slow or cease sales of the ETNs at any time, at our discretion. Therefore, the liquidity of the ETNs may be limited.

Conditions to early redemption — You must satisfy the requirements described in the ETRACS Prospectus for your redemption request to be considered, including the minimum redemption amount of at least 50,000 ETNs, unless we determine otherwise or your broker or other financial intermediary bundles your ETNs for redemption with those of other investors to reach this minimum requirement for redemption. In addition, the payment you receive upon early redemption will be reduced by the Redemption Fee Amount. While UBS reserves the right to waive the minimum redemption amount or the Redemption Fee Amount from time-to-time in its sole discretion, there can be no assurance that UBS will choose to waive any redemption requirements or fees or that any holder of the ETNs will benefit from UBS’s election to do so.

Your redemption election is irrevocable — You will not know the Redemption Amount at the time you elect to request to redeem your ETNs and you will not be able to rescind your election to redeem your ETNs after we receive your redemption notice. Accordingly, you will be exposed to market risk in the event market conditions change after we receive your offer and the Redemption Amount is determined on the Redemption Valuation Date.

Potential adverse tax treatment — The tax treatment of the ETNs is uncertain and you may be subject to adverse U.S. tax consequences in respect of your ownership of the ETNs. You should consult your own tax advisor about your own tax situation.

Reinvestment of Notional Distributions of Index Constituent Securities — The Index accounts for cash dividends and distributions by the Index Constituent Securities by reinvesting such amounts in the Index after market close on the applicable ex-dividend or ex-distribution date, but subject to dividend withholding taxes, on distributions made by applicable non-U.S. Index Constituent Securities. No dividend withholding taxes are applied to distributions made by applicable U.S. Index Constituent Securities.

UBS Call Right — We may elect to redeem all issued and outstanding ETNs at any time. If we exercise our call right, the Call Settlement Amount may be less than the payment you would have otherwise been entitled to at maturity. In addition, you may have to invest your proceeds in a lower-return investment.

Hours of trading of non-U.S. companies may not conform to the hours during which the ETNs are traded — To the extent that U.S. markets are closed while the international markets in which certain Index Constituent Securities trade remain open, significant movements may take place in the levels, values or prices of the Index or certain Index Constituent Securities that will not be reflected immediately in the price of the ETNs.

Volatility of Exchange Rates - Because the Index is calculated, in part, by converting the closing prices of such Index Constituent Securities into U.S. dollars, the volatility of the exchange rate between the U.S. dollar and each of the currencies in which such Index Constituent Securities are denominated could affect the market value of the ETNs and the payment you receive at maturity, early redemption, acceleration or upon exercise by UBS of its call right.