Strategy. Under normal circumstances, the fund invests in fixed income securities and money market instruments. The funds investments in securities may include, but are not limited to, government obligations including agencies, debt issued by government-sponsored and supranational entities, as well as municipal securities, corporate debt, mortgage-backed, asset-backed, and inflation-linked securities. Investments in money market instruments may include, but are not limited to, commercial paper (including asset-backed commercial paper), certificates of deposit, notes, time deposits, repurchase agreements and other money market securities. The fund may invest in money market funds, including those advised by UBS Asset Management (Americas) LLC (UBS AM), the funds investment advisor. The fund may invest in securities of any maturity, but will generally limit its weighted average portfolio … Show more… Under normal circumstances, the fund invests in fixed income securities and money market instruments. The funds investments in securities may include, but are not limited to, government obligations including agencies, debt issued by government-sponsored and supranational entities, as well as municipal securities, corporate debt, mortgage-backed, asset-backed, and inflation-linked securities. Investments in money market instruments may include, but are not limited to, commercial paper (including asset-backed commercial paper), certificates of deposit, notes, time deposits, repurchase agreements and other money market securities. The fund may invest in money market funds, including those advised by UBS Asset Management (Americas) LLC (UBS AM), the funds investment advisor. The fund may invest in securities of any maturity, but will generally limit its weighted average portfolio duration to one year or less. The fund normally invests in investment grade securities. Investment grade securities possess a minimum rating of Baa3 by Moodys Investors Service, Inc. (Moodys) or BBB- by Standard & Poors Financial Services LLC (S&P) or Fitch Ratings, Inc. (Fitch) for long-term ratings and/or equivalent short-term ratings, comparably rated by another nationally recognized statistical rating organization, or, if unrated, are determined by UBS AM to be of comparable quality. The fund may at times hold securities rated below-investment-grade if the rating for a security held by the fund is subsequently reduced to below-investment-grade (commonly referred to as junk bonds, which are considered speculative in nature). The funds investments may have all types of interest rate payment and reset terms, including floating or variable rate, zero coupon and other features. In addition, the fixed income securities purchased by the fund may be of US and non-US issuers. The funds investments are typically denominated in US dollars or hedged to US dollars. The fund will, under normal circumstances, invest more than 25% of its total assets in the financial services group of industries. The fund may engage in derivatives transactions; however, it is not a principal strategy of the fund. Derivatives instruments such as futures, forwards, options, and/or swaps may be used for risk management purposes or as part of the funds investment strategies. The fund is not a money market fund and does not seek to maintain a stable net asset value (NAV). The fund should not be considered to be a money market fund or the equivalent of a money market fund. Management process UBS AM acts as the investment advisor to the fund, and makes the funds investment decisions. UBS AM selects investments for the fund based on a rigorous valuation and research framework, combining top-down macroeconomic and quantitative research with issuer level credit analysis. This dynamic approach allows UBS AM to exploit diversified sources of return, which UBS AM believes is key to delivering consistent performance over time. The top-down process involves formulation of broad investment views and views regarding macroeconomic trends. UBS AMs views on the direction of interest rates, yield curve shape, sectors, and volatility help formulate final portfolio positioning. After UBS AM establishes the top-down strategy, the portfolio management team, working closely with UBS AMs research analysts, builds portfolios that combines top-down allocation targets with bottom-up security specific strategies. Research is a fundamental component of UBS AMs globally integrated investment platform and consists of top-down macroeconomic analysis as well as bottom-up sector and issuer level research. UBS AM uses rigorous credit/structure analysis and relative pricing to choose securities that it believes have superior risk/return characteristics. The ultimate goal of any purchase decision is to be compensated for a given level of risk. Prudent diversification seeks to ensure an appropriate risk/return relationship. Security selection represents the final level of decision-making in our investment process. UBS AM selects individual securities that it believes will give the portfolio the desired exposures with optimal relative value. UBS AM integrates risk management throughout the investment process. UBS AM considers safety of principal and liquidity in selecting securities for the fund and thus may not buy securities that pay the highest yield. The fund may sell investments that UBS AM believes are no longer favorable with regard to these factors or for other reasons. The fund is classified by UBS AM as an ESG-integrated fund. The funds investment process integrates material sustainability and/or environmental, social and governance (ESG) considerations into the research process for all portfolio investments and portfolio holdings, except repurchase agreements with certain counterparties and except asset-backed and mortgage-backed securities. ESG integration is driven by taking into account material sustainability and/or ESG risks which could impact investment returns, rather than being driven by specific ethical principles or norms. The analysis of material sustainability and/or ESG considerations can include many different aspects, including, for example, the carbon footprint, employee health and well-being, supply chain management, fair customer treatment and governance processes of a company. The funds portfolio managers may still invest in securities without respect to sustainability and/or ESG considerations or in securities which present sustainability and/or ESG risks, including where the portfolio managers believe the potential compensation outweighs the risks identified. Show less