# EDGAR Filing Document

**Accession Number:** 0000035315
**File Stem:** 0000035315-25-000513
**Filing Date:** 2025-6
**Character Count:** 5403
**Document Hash:** 4d369088c65287c781ba5f35c8d0a2af
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000035315-25-000513.hdr.sgml**: 20250827

**ACCESSION NUMBER**: 0000035315-25-000513

**CONFORMED SUBMISSION TYPE**: CORRESP

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250606

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** FIDELITY SALEM STREET TRUST
- **CENTRAL INDEX KEY:** 0000035315

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 0430

**FILING VALUES:**
- **FORM TYPE:** CORRESP

**BUSINESS ADDRESS:**
- **STREET 1:** 245 SUMMER STREET
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02210
- **BUSINESS PHONE:** 617-563-7000

**MAIL ADDRESS:**
- **STREET 1:** 245 SUMMER STREET
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02210

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** FIDELITY FIXED INCOME TRUST
- **DATE OF NAME CHANGE:** 19920703

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** FIDELITY FLEXIBLE BOND FUND
- **DATE OF NAME CHANGE:** 19860904

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** FIDELITY CORPORATE BOND FUND INC
- **DATE OF NAME CHANGE:** 19851225

COMMENTS RECEIVED ON 05/28/2025

FROM DANIEL GREENSPAN

FIDELITY SALEM STREET TRUST (File Nos. 002-41839 and 811-02105)

Fidelity Flex Mid Cap Index Fund

Fidelity Flex Small Cap Index Fund

POST-EFFECTIVE AMENDMENT NO. 595

1)

All funds

"Fund Summary" (prospectus)

"Fee Table"

"The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. **You may pay other fees, such as brokerage commissions, which are not reflected in the tables and examples below.**"

C:

The Staff requests we explain reasoning for disclosure that was changed/removed from the bold sentence.

R:

The disclosure has been streamlined but is in substance unchanged in that it continues to appropriately indicate the other fees that shareholders may pay that are not reflected in the fee table and example that follow.

2)

All funds

"Fund Summary" (prospectus)

"Principal Investment Strategies"

C:

The Staff requests we disclose the component selection criteria for inclusion or exclusion and the number of constituents. What are the criteria beyond the market capitalization?

R:

The Staff has indicated that the prospectus summary section is intended to be a type of "executive summary" of "streamlined disclosure of key mutual fund information" at the front of the prospectus (1998 and 2009 Form N-1A amendments adopting releases). We believe that we have appropriately summarized the key information about each fund's principal investment strategies in the summary section in accordance with Item 4(a) of Form N-1A. Additional detail regarding each fund's index and index methodology is disclosed in the "Fund Basics" section under "Principal Investment Strategies." Accordingly, we do not believe additional disclosure is needed.

3)

All funds

"Fund Summary" (prospectus)

"Principal Investment Risks"

C:

The Staff requests we add disclosure of the greater risk of conflicts of interest and index manipulation due to the relationship between the index provider and the investment adviser.

R:

The funds, the Adviser, and Geode have each adopted policies and procedures designed to minimize potential conflicts of interest in connection with the management of the funds. Given these policies and procedures, we don't believe this is a principal investment risk. We believe each fund's principal investment risks are appropriately disclosed. Accordingly, we have not modified the disclosure.

4)

All funds

"Fund Summary" (prospectus)

"Principal Investment Strategies"

"Effective December 11, 2025, derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives."

C:

The Staff requests we disclose whether and when the methodology would call for the use of derivatives and whether that use would introduce leverage risk.

R:

Investing in derivative instruments is not a principal investment strategy for the funds. As a result, leverage risk is not a principal investment risk of either fund. The excerpted disclosure below is included to account for the limited circumstances under which a derivative instrument may be included in a fund's 80% policy pursuant to the Amended Names Rule, and subject to the fund's investment limitations with respect to derivatives. Under the Amended Names Rule, a fund may include derivative instruments in its 80% policy if the derivative instrument "provides investment exposure to investments suggested by the fund's name" or to "one or more of the market risk factors associated with the investment focus that the fund's name suggests". Because the disclosure excerpted below describes the methodology for use of derivatives and is consistent with both Form N-1A and the Amended Names Rule, we respectfully decline to modify the disclosure.

"Derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives."

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