CALVERT BALANCED FUND

CALVERT CONSERVATIVE ALLOCATION FUND

CALVERT EMERGING MARKETS ADVANCEMENT FUND

CALVERT EMERGING MARKETS EQUITY FUND

CALVERT EQUITY FUND

CALVERT FOCUSED VALUE FUND

CALVERT GLOBAL ENERGY SOLUTIONS FUND

CALVERT GLOBAL WATER FUND

CALVERT GROWTH ALLOCATION FUND

CALVERT INTERNATIONAL EQUITY FUND

CALVERT INTERNATIONAL OPPORTUNITIES FUND

CALVERT INTERNATIONAL RESPONSIBLE INDEX FUND

CALVERT MID-CAP FUND

CALVERT MODERATE ALLOCATION FUND

CALVERT SMALL-CAP FUND

CALVERT ULTRA-SHORT DURATION INCOME FUND

CALVERT US LARGE-CAP CORE RESPONSIBLE INDEX FUND

CALVERT US LARGE-CAP GROWTH RESPONSIBLE INDEX FUND

CALVERT US LARGE-CAP VALUE RESPONSIBLE INDEX FUND

CALVERT US MID-CAP CORE RESPONSIBLE INDEX FUND

Supplement to Prospectuses dated February 1, 2023

CALVERT FLOATING-RATE ADVANTAGE FUND

Supplement to Prospectus dated February 1, 2023, as revised April 19, 2023

CALVERT FLEXIBLE BOND FUND

CALVERT GLOBAL REAL ESTATE FUND

CALVERT RESPONSIBLE MUNICIPAL INCOME FUND

Supplement to Prospectuses dated May 1, 2023

CALVERT EMERGING MARKETS FOCUSED GROWTH FUND

Supplement to Prospectus dated December 21, 2022, as revised May 31, 2023

CALVERT BOND FUND

CALVERT CORE BOND FUND

CALVERT GREEN BOND FUND

CALVERT HIGH YIELD BOND FUND

CALVERT MORTGAGE ACCESS FUND

CALVERT INCOME FUND

CALVERT SHORT DURATION INCOME FUND

Supplement to Prospectus dated June 30, 2023

CALVERT GLOBAL EQUITY FUND

CALVERT GLOBAL SMALL-CAP EQUITY FUND

CALVERT SMALL/MID-CAP FUND

Supplement to Prospectus dated April 12, 2023, as revised September 18, 2023

The following change is effective January 1, 2024.

The following replaces “Policies Regarding Transactions Through Edward D. Jones & Co., L.P. (“Edward Jones”)” under “Appendix B – Financial Intermediary Sales Charge Variations” for all Funds:

Policies Regarding Transactions through Edward D. Jones & Co., L.P. (“Edward Jones”)

The following information has been provided by Edward Jones:

Effective on or after January 1, 2024, the following information supersedes prior information with respect to transactions and positions held in fund shares through an Edward Jones system. Clients of Edward Jones (also referred to as “shareholders”) purchasing fund shares on the Edward Jones commission and fee-based platforms are eligible only for the following sales charge discounts (also referred to as “breakpoints”) and waivers, which can differ from discounts and waivers described elsewhere in the mutual fund prospectus or statement of additional information (“SAI”) or through another broker-dealer. In all instances, it is the shareholder's responsibility to inform Edward Jones at the time of purchase of any relationship, holdings of fund family, or other facts qualifying the purchaser for discounts or waivers. Edward Jones can ask for documentation from the shareholder of such circumstance. Shareholders should contact Edward Jones if they have questions regarding their eligibility for these discounts and waivers.

Breakpoints

· Breakpoint pricing, otherwise known as volume pricing, at dollar thresholds as described in the prospectus.

Rights of Accumulation (“ROA”)

· The applicable sales charge on a purchase of Class A shares is determined by taking into account all share classes (except certain money market funds and any assets held in group retirement plans) of the mutual fund family held by the shareholder or in an account grouped by Edward Jones with other accounts for the purpose of providing certain pricing considerations (“pricing groups”). If grouping assets as a shareholder, this includes all share classes held on the Edward Jones platform and/or held on another platform. The inclusion of eligible fund family assets in the ROA calculation is dependent on the shareholder notifying Edward Jones of such assets at the time of calculation. Money market funds are included only if such shares were sold with a sales charge at the time of purchase or acquired in exchange for shares purchased with a sales charge.

· The employer maintaining a SEP IRA plan and/or SIMPLE IRA plan may elect to establish or change ROA for the IRA accounts associated with the plan to a plan-level grouping as opposed to including all share classes at a shareholder or pricing group level.

· ROA is determined by calculating the higher of cost minus redemptions or market value (current shares x NAV).

Letter of Intent (“LOI”)

· Through a LOI, shareholders can receive the sales charge and breakpoint discounts for purchases shareholders intend to make over a 13-month period from the date Edward Jones receives the LOI. The LOI is determined by calculating the higher of cost or market value of qualifying holdings at LOI initiation in combination with the value that the shareholder intends to buy over a 13-month period to calculate the front-end sales charge and any breakpoint discounts. Each purchase the shareholder makes during that 13-month period will receive the sales charge and breakpoint discount that applies to the total amount. The inclusion of eligible fund family assets in the LOI calculation is dependent on the shareholder notifying Edward Jones of such assets at the time of calculation. Purchases made before the LOI is received by Edward Jones are not adjusted under the LOI and will not reduce the sales charge previously paid. Sales charges will be adjusted if LOI is not met.

· If the employer maintaining a SEP IRA plan and/or SIMPLE IRA plan has elected to establish or change ROA for the IRA accounts associated with the plan to a plan-level grouping, LOIs will also be at the plan-level and may only be established by the employer.

Sales Charge Waivers

Sales charges are waived for the following shareholders and in the following situations:

· Associates of Edward Jones and its affiliates and other accounts in the same pricing group (as determined by Edward Jones under its policies and procedures) as the associate. This waiver will continue for the remainder of the associate's life if the associate retires from Edward Jones in good-standing and remains in good standing pursuant to Edward Jones' policies and procedures.

· Shares purchased in an Edward Jones fee-based program.

· Shares purchased through reinvestment of capital gains distributions and dividend reinvestment.

· Shares purchased from the proceeds of redeemed shares of the same fund family so long as the following conditions are met: the proceeds are from the sale of shares within 60 days of the purchase, the sale and purchase are made from a share class that charges a front load and one of the following:

· The redemption and repurchase occur in the same account.

· The redemption proceeds are used to process an: IRA contribution, excess contributions, conversion, recharacterizing of contributions, or distribution, and the repurchase is done in an account within the same Edward Jones grouping for ROA.

· Shares exchanged into Class A shares from another share class so long as the exchange is into the same fund and was initiated at the discretion of Edward Jones. Edward Jones is responsible for any remaining CDSC due to the fund company, if applicable. Any future purchases are subject to the applicable sales charge as disclosed in the prospectus.

· Exchanges from Class C shares to Class A shares of the same fund, generally, in the 84^th month following the anniversary of the purchase date or earlier at the discretion of Edward Jones.

· Purchases of Class 529-A shares through a rollover from either another education savings plan or a security used for qualified distributions.

· Purchases of Class 529 shares made for recontribution of refunded amounts.

Contingent Deferred Sales Charge (“CDSC”) Waivers

If the shareholder purchases shares that are subject to a CDSC and those shares are redeemed before the CDSC is expired, the shareholder is responsible to pay the CDSC except in the following conditions:

· The death or disability of the shareholder.

· Systematic withdrawals with up to 10% per year of the account value.

· Return of excess contributions from an Individual Retirement Account (IRA).

· Shares redeemed as part of a required minimum distribution for IRA and retirement accounts if the redemption is taken in or after the year the shareholder reaches qualified age based on applicable IRS regulations.

· Shares redeemed to pay Edward Jones fees or costs in such cases where the transaction is initiated by Edward Jones.

· Shares exchanged in an Edward Jones fee-based program.

· Shares acquired through NAV reinstatement.

· Shares redeemed at the discretion of Edward Jones for Minimum Balances as described below.

Other Important Information Regarding Transactions Through Edward Jones

Minimum Purchase Amounts

· Initial purchase minimum: $250

· Subsequent purchase minimum: none

Minimum Balances

· Edward Jones has the right to redeem at its discretion fund holdings with a balance of $250 or less. The following are examples of accounts that are not included in this policy:

· A fee-based account held on an Edward Jones platform

· A 529 account held on an Edward Jones platform

· An account with an active systematic investment plan or LOI

Exchanging Share Classes

· At any time it deems necessary, Edward Jones has the authority to exchange at NAV a shareholder's holdings in a fund to Class A shares of the same fund

December 18, 2023 43214 12.18.23