Notes to portfolio of investments
All investments are valued each business day as of the close of regular trading on the New York Stock Exchange (generally 4 p.m. Eastern Time), although the Fund may deviate from this calculation time under unusual or unexpected circumstances.
Debt securities are valued at the evaluated bid price provided by an independent pricing service (e.g., taking into account various factors, including yields, maturities, or credit ratings) or, if a reliable price is not available, the quoted bid price from an independent broker-dealer.
Futures contracts that are listed on a foreign or domestic exchange or market are valued at the official closing price or, if none, the last sales price.
Investments in registered open-end investment companies (other than those listed on a foreign or domestic exchange or market) are valued at net asset value.
Investments which are not valued using the methods discussed above are valued at their fair value, as determined in good faith by Allspring Funds Management, LLC (“Allspring Funds Management”), which was named the valuation designee by the Board of Trustees. As the valuation designee, Allspring Funds Management is responsible for day-to-day valuation activities for the Allspring Funds. In connection with these responsibilities, Allspring Funds Management has established a Valuation Committee and has delegated to it the authority to take any actions regarding the valuation of portfolio securities that the Valuation Committee deems necessary or appropriate, including determining the fair value of portfolio securities. On a quarterly basis, the Board of Trustees receives reports of valuation actions taken by the Valuation Committee. On at least an annual basis, the Board of Trustees receives an assessment of the adequacy and effectiveness of Allspring Funds Management’s process for determining the fair value of the portfolio of investments.
Futures contracts are agreements between the Fund and a counterparty to buy or sell a specific amount of a commodity, financial instrument or currency at a specified price and on a specified date. The Fund may buy and sell futures contracts in order to gain exposure to, or protect against, changes in interest rates and is subject to interest rate risk. The primary risks associated with the use of futures contracts are the imperfect correlation between changes in market values of securities held by the Fund and the prices of futures contracts, and the possibility of an illiquid market. Futures contracts are generally entered into on a regulated futures exchange and cleared through a clearinghouse associated with the exchange. With futures contracts, there is minimal counterparty risk to the Fund since futures contracts are exchange-traded and the exchange’s clearinghouse, as the counterparty to all exchange-traded futures, guarantees the futures contracts against default.
Upon entering into a futures contract, the Fund is required to deposit either cash or securities (initial margin) with the broker in an amount equal to a certain percentage of the contract value. Subsequent payments (variation margin) are paid to or received from the broker each day equal to the daily changes in the contract value. Such payments are recorded as unrealized gains or losses and, if any, shown as variation margin receivable (payable). Should the Fund fail to make requested variation margin payments, the broker can gain access to the initial margin to satisfy the Fund’s payment obligations. When the contracts are closed, a realized gain or loss is recorded.
Mortgage dollar roll transactions
The Fund may engage in mortgage dollar roll transactions through TBA mortgage-backed securities issued by Government National Mortgage Association (GNMA), Federal National Mortgage Association (FNMA) and Federal Home Loan Mortgage Corporation (FHLMC). In a mortgage dollar roll transaction, the Fund sells a mortgage-backed security to a financial institution, such as a bank or broker-dealer and simultaneously agrees to repurchase a substantially similar security from the institution at a later date at an agreed upon price. The mortgage-backed securities that are repurchased will bear the same interest rate as those sold, but generally will be collateralized by different pools of mortgages with different pre-payment histories. During the roll period, the Fund foregoes principal and interest paid on the securities. The Fund is compensated by the difference between the current sales price and the forward price for the future purchase as well as by the earnings on the cash proceeds of the initial sale. Mortgage dollar rolls may be renewed without physical delivery of the securities subject to the contract. The Fund accounts for TBA dollar roll transactions as purchases and sales which, as a result, may increase its portfolio turnover rate.
Fair valuation measurements
Fair value measurements of investments are determined within a framework that has established a fair value hierarchy based upon the various data inputs utilized in determining the value of the Fund’s investments. The three-level hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). The Fund’s investments are classified within the fair value hierarchy based on the lowest level of input that is significant to the fair value measurement. The inputs are summarized into three broad levels as follows:
•Level 1 – quoted prices in active markets for identical securities
•Level 2 – other significant observable inputs (including quoted prices for similar securities, interest rates, prepayment speeds, credit risk, etc.)
•Level 3 – significant unobservable inputs (including the Fund’s own assumptions in determining the fair value of investments)
