Strategy. In seeking to track the performance of the S&P Composite 1500 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 … Show more… In seeking to track the performance of the S&P Composite 1500 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 (including common stock, preferred stock, depositary receipts and shares of other investment companies). The Fund may also invest in cash and cash equivalents or money market instruments (including money market funds advised by the Adviser) for cash management purposes. In seeking to track the Index, the Fund's assets may be concentrated in an industry or group of industries, but only to the extent that the Index concentrates in a particular industry or group of industries. Futures contracts (a type of derivative instrument) may be used by the Fund in seeking performance that corresponds to the Index and in managing cash flows. The Index is designed to measure the performance of the broad exchange-traded U.S. equity securities universe. The Index consists of those stocks included in the S&P 500 Index, the S&P MidCap 400 Index, and the S&P SmallCap 600 Index. Each underlying index includes U.S. common equities listed on the NYSE, NYSE Arca, NYSE American, NASDAQ Global Select Market, NASDAQ Global Market, NASDAQ Capital Market, Cboe BZX, Cboe BYX, Cboe EDGA, or Cboe EDGX that meet specific market capitalization requirements. To be included in an underlying index, a security (or issuer of a security, as applicable) should (i) have an annual dollar value traded to float-adjusted market capitalization ratio of 0.75 or greater at the time of addition to the Index; (ii) trade a minimum of 250,000 shares in each of the six months leading up to the evaluation date; (iii) have a public float of at least 10%; and (iv) have positive aggregate earnings over the four most recent quarters and for the most recent quarter. The Index is float-adjusted market capitalization weighted. Index constituents are added and removed on an as-needed basis. The Index is rebalanced on a quarterly basis in March, June, September and December. As of August 31, 2025, a significant portion of the Fund comprised companies in the technology sector, although this may change from time to time. As of July 31, 2025, the Index comprised 1,506 stocks. The Index is sponsored by S&P Dow Jones Indices LLC ? (the Index Provider), which is not affiliated with the Fund or the Adviser. The Index Provider determines the composition of the Index, relative weightings of the securities in the Index and publishes information regarding the market value of the Index. Show less