Note 1 - Organization Invesco DB US Dollar Index Bullish Fund (the Fund), a separate series of Invesco DB US Dollar Index Trust (the Trust), was formed as a Delaware statutory trust on August 3, 2006. The term of the Fund is perpetual (unless terminated earlier in certain circumstances) as provided for in the Fifth Amended and Restated Declaration of Trust and Trust Agreement of the Trust, as amended (the Trust Agreement). The Fund has an unlimited number of shares authorized for issuance. Invesco Capital Management LLC (Invesco) has served as the managing owner (the Managing Owner), commodity pool operator and a commodity trading advisor of the Trust and the Fund since February 23, 2015. The Managing Owner holds 40 general shares (the General Shares) of the Fund. The fiscal year end of the Fund is December 31st. The Fund establishes long positions in certain futures contracts (the DX Contracts), with a view to tracking the changes, whether positive or negative, in the level of the Deutsche Bank Long USD Currency Portfolio IndexExcess Return TM (the Index), over time. The Index was renamed effective January 17, 2017. Prior to January 17, 2017, the Index was known as the Deutsche Bank Long US Dollar Index (USDX) Futures Index-Excess Return TM . The Index, as renamed, is identical to the Index prior to its name change on January 17, 2017. The performance of the Fund also is intended to reflect the excess, if any, of the sum of the Funds interest income from its holdings of United States Treasury Obligations (Treasury Income), dividends from its holdings in money market mutual funds (affiliated or otherwise) (Money Market Income) and dividends or distributions of capital gains from its holdings of T-Bill ETFs (as defined below) (T-Bill ETF Income) over the expenses of the Fund. The Fund may invest directly in United States Treasury Obligations. The Fund may also gain exposure to United States Treasury Obligations through investments in exchange-traded funds (ETFs) (affiliated or otherwise) that track indexes that measure the performance of United States Treasury Obligations with a maximum remaining maturity of up to 12 months (T-Bill ETFs). The Fund holds as collateral United States Treasury Obligations, money market mutual funds and T-Bill ETFs (affiliated or otherwise), if any, for margin and/or cash management purposes. While the Fund's performance reflects the appreciation and depreciation of those holdings, the Fund's performance, whether positive or negative, is driven by its strategy of trading futures contracts with the aim of seeking to track the Index. The Index is calculated to reflect the changes in market value over time, whether positive or negative, of long positions in DX Contracts. DX Contracts are traded through the currency markets of ICE Futures U.S. (formerly known as the New York Board of Trade), under the symbol DX. The Index reflects the changes in market value over time, whether positive or negative, of the DX Contracts which expire during the months of March, June, September and December. The Fund seeks to track the Index by establishing long positions in DX Contracts. DX Contracts are linked to the six underlying currencies (the Index Currencies) of the ICE U.S. Dollar Index (USDX) (the USDX). The Index Currencies are the Euro, Japanese Yen, British Pound, Canadian Dollar, Swedish Krona and Swiss Franc. The notional amounts of the Index Currencies included in the USDX reflect a geometric weighted average of the change in the Index Currencies exchange rates against the U.S. dollar relative to March 1973. March 1973 was chosen as a base period of the USDX because it represents a significant milestone in foreign exchange history when the worlds major trading nations allowed their currencies to float freely against each other. The Fund offers common units of beneficial interest (the Shares) only to certain eligible financial institutions (the Authorized Participants) in one or more blocks of 200,000 Shares (Creation Units). The Fund commenced investment operations on February 15, 2007. The Fund commenced trading on the American Stock Exchange (which became the NYSE Alternext US LLC) on February 20, 2007 and, since November 25, 2008, has been listed on the NYSE Arca, Inc. (the NYSE Arca). This Quarterly Report (the Report) covers the three months ended March 31, 2020 and 2019. The accompanying unaudited financial statements were prepared in accordance with accounting principles generally accepted in the United States of America (U.S. GAAP) for interim financial information and with the instructions for Form 10-Q and the rules and regulations of the U.S. Securities and Exchange Commission (the SEC). In the opinion of management, all material adjustments, consisting only of normal recurring adjustments, considered necessary for a fair statement of the interim period financial statements have been made. Interim period results are not necessarily indicative of results for a full-year period. These financial statements and the notes thereto should be read in conjunction with the Funds financial statements included in its Annual Report on Form 10-K for the year ended December 31, 2019 as filed with the SEC on February 28, 2020.