29 CFR §2550.407d-5

1. (a)In general. For purposes of this section and section 407(d)(5) of the Employee Retirement Income Security Act of 1974 (the Act), the term “qualifying employer security” means an employer security which is:
   1. (1)Stock; or
   2. (2)A marketable obligation, as defined in paragraph (b) of this section and section 407(e) of the Act.
2. (b)For purposes of paragraph (a)(2) of this section and section 407(d)(5) of the Act, the term “marketable obligation” means a bond, debenture, note, or certificate, or other evidence of indebtedness (hereinafter in this paragraph referred to as “obligation”) if:
   1. (1)Such obligation is acquired—
      1. (i)On the market, either—
         1. (A)At the price of the obligation prevailing on a national securities exchange which is registered with the Securities and Exchange Commission, or
         2. (B)If the obligation is not traded on such a national securities exchange, at a price not less favorable to the plan than the offering price for the obligation as established by current bid and asked prices quoted by persons independent of the issuer;
      2. (ii)From an underwriter, at a price—
         1. (A)Not in excess of the public offering price for the obligation as set forth in a prospectus or offering circular filed with the Securities and Exchange Commission, and
         2. (B)At which a substantial portion of the same issue is acquired by persons independent of the issuer; or
      3. (iii)Directly from the issuer at a price not less favorable to the plan than the price paid currently for a substantial portion of the same issue by persons independent of the issuer;
   2. (2)Immediately following acquisition of such obligation,
      1. (i)Not more than 25 percent of the aggregate amount of obligations issued in such issue and outstanding at the time of acquisition is held by the plan, and
      2. (ii)At least 50 percent of the aggregate amount referred to in paragraph (A) is held by persons independent of the issuer; and
   3. (3)Immediately following acquisition of the obligation, not more than 25 percent of the assets of the plan is invested in obligations of the employer or an affiliate of the employer.