SPDR S&P Kensho Final Frontiers ETF (ROKT) Exchange: NYSE ARCA

In seeking to track the performance of the S&P Kensho Final Frontiers Index (the “Index”), the Fund employs a sampling strategy, which means that the Fund is not required to purchase all of the securities represented in the Index. Instead, the Fund may purchase a subset of the securities in the Index in an effort to hold a portfolio of securities with generally the same risk and return characteristics of the Index. The quantity of holdings in the Fund will be based on a number of factors, including asset size of the Fund. Based on its analysis of these factors, SSGA Funds Management, Inc. (“SSGA FM” or the “Adviser”), the investment adviser to the Fund, either may invest the Fund's assets in a subset of securities in the Index or may invest the Fund's assets in substantially all of the securities represented in the Index in approximately the same proportions as the Index, as determined by the Adviser to be in the best interest of the Fund in pursuing its objective.Under normal market conditions, the Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index. In addition, in seeking to track the Index, the Fund may invest in equity securities that are not included in the Index, cash and cash equivalents or money market instruments, such as repurchase agreements and money market funds (including money market funds advised by the Adviser). In seeking to track the Index, the Fund's assets will generally be concentrated in an industry or group of industries to the extent that the Index concentrates in a particular industry or group of industries.The Index is comprised of U.S.-listed equity securities (including depositary receipts) of companies domiciled across developed and emerging markets worldwide which are included in the Final Frontiers sector as determined by a classification standard produced by S&P Dow Jones Indices LLC (the “Index Provider”). The Index is designed to capture companies whose products and services are driving innovation behind the exploration of deep space and deep sea. In particular, the Index comprises the components of the S&P Kensho Space Index and the deep sea exploration components of the S&P Kensho Drones Index (the “Underlying Indexes”) as of the Index's semi-annual selection date, on the first Friday in June and December, subject to the following liquidity thresholds for each component: (i) must be issued by a company with a minimum market capitalization of at least $100 million and (ii) must have a minimum three-month average daily traded value of at least $1 million. The S&P Kensho Space Index seeks to track companies that produce products and services that enable space travel and exploration, or are a necessary component of the supply chain for such products and services. The S&P Kensho Drones Index seeks to track companies that produce products and services related to the remotely-operated or unmanned aerial, underwater and surface-level drones market, or are a necessary component of the supply chain for such products and services.To determine the constituents of the Underlying Indexes, the Index Provider's classification standard utilizes an automated scan of companies' most recent annual reports filed with the U.S. Securities and Exchange Commission on Form 10-K, Form 20-F, Form 40-F, or S-1 filing and prospectus, as applicable, to identify specific search terms and phrases that describe a company as producing products and services related to the particular segment targeted by the Underlying Index. The resulting list of eligible securities for each Underlying Index is then filtered by eliminating companies that do not include in their annual reports a reference to a product or service that (i) is related to a search term or phrase and (ii) is used in a manner that is within the scope of the Underlying Index's objective. Each Underlying Index then screens the remaining securities to remove securities that are not listed on NYSE, NASDAQ, IEX, or CBOE exchanges (or an affiliate of one of those exchanges) or do not meet certain minimum liquidity thresholds. The Index Provider's Index Committee then reviews each remaining eligible constituent to verify the rules of the automated scan were implemented correctly.Underlying Index constituents are then categorized as either “Core” or “Non-Core.” A company is categorized as Core if its products and services related to the Underlying Index's objective are identified in its annual report as principal components of the company's strategy. Products and services are deemed to be principal components of a company's strategy if the company's annual report disclosures regarding such products and services are determined to be sufficiently prominent according to a proprietary algorithm of the Index Provider which calculates prominence based on the frequency and position of such disclosures within an annual report. All other companies are categorized as Non-Core, including companies whose products and services are identified as forming a necessary component of the supply chain of the segment targeted by the Underlying Index. An Index constituent categorized as Core by at least one of the Underlying Indexes will be categorized as Core for purposes of the Index. At the time of each rebalance, to tilt the Index's exposure toward Core Index Constituents, the Core Index Constituents are systematically overweighted relative to the Non-Core Index Constituents. Each Core Index Constituent and Non-Core Index Constituent is then equally weighted within the group of Core Index Constituents and Non-Core Index Constituents, respectively, subject to liquidity adjustments.The Index is rebalanced semi-annually on the third Friday of June and December. As of August 31, 2019, the Index comprised 27 securities.The Index Provider is not affiliated with the Fund or the Adviser. The Index Provider establishes and maintains rules which are used to determine the composition of the Index and relative weightings of the securities in the Index.