1. (a) General. A bank holding company's method 1 score is the sum of its systemic indicator scores for the twelve systemic indicators set forth Table 1 of this section, as determined under paragraph (b) of this section.

2. (b) Systemic indicator score.

   1. (1) Except as provided in paragraph (b)(2) of this section, the systemic indicator score in basis points for a given systemic indicator is equal to:

      1. (i) The ratio of:

         1. (A) The amount of that systemic indicator, as reported by the bank holding company as of December 31 of the previous calendar year; to
         2. (B) The aggregate global indicator amount for that systemic indicator published by the Board in the fourth quarter of that year;
      2. (ii) Multiplied by 10,000; and
      3. (iii) Multiplied by the indicator weight corresponding to the systemic indicator as set forth in Table 1 of this section.

   2. (2) Maximum substitutability score. The sum of the systemic indicator scores for the indicators in the substitutability category (assets under custody, payments systems activity, and underwriting activity) will not exceed 100 basis points.

      Table 1 to § 217.404—Systemic Indicator Weights

      Category	Systemic indicator	Indicator weight
      Size	Total exposures	20 percent.
      Interconnectedness	Intra-financial system assets	6.67 percent.
      	Intra-financial system liabilities	6.67 percent.
      	Securities outstanding	6.67 percent.
      Substitutability	Payments activity	6.67 percent.
      	Assets under custody	6.67 percent.
      	Underwritten transactions in debt and equity markets	6.67 percent.
      Complexity	Notional amount of over-the-counter (OTC) derivatives	6.67 percent.
      	Trading and available-for-sale (AFS) securities	6.67 percent.
      	Level 3 assets	6.67 percent.
      Cross-jurisdictional activity	Cross-jurisdictional claims	10 percent.
      	Cross-jurisdictional liabilities	10 percent.

[Reg. Q, 80 FR 49105, Aug. 14, 2015, as amended at 81 FR 90954, Dec. 16, 2016]