Schedule Initial Margin

Overview

Atoti ISDA-SIMM provides measures computing margin per Schedule Methodology.

Gross Initial Margin per trade

The Gross Initial Margin per trade is computed as: $Notional \cdot MarginRate$.

Margin rate is looked up based on Product Class and Maturity Bucket (can be visualized using RegulatoryBucket hierarchy):

  • Maturity Bucket 0y-2y includes all trades having an EndDate within the next 2 calendar years (inclusive exactly 2y from now)
  • 2y-5y includes all trades maturing after 2y and up to 5y from now (inclusive exactly 5y)
  • 5y+ bucket includes trades expiring after 5y

NGR per netting set

NGR = net replacement cost / gross replacement cost, where

  • net replacement cost = max(0, sum across trades in the netting set PV)
  • gross replacement cost = sum across trades in the netting set of max(0, PV) (in-the-money trades)

Net standardized initial margin per netting set

Schedule = 0.4 * Gross initial margin + 0.6 * NGR * Gross initial margin

The 0.4 and 0.6 factors can be changed - please see SIMM Parameters.

CRIF fields

  • RiskType {“Notional”} and IMModel { “Schedule”} - filter “AmountUSD” to obtain “Notional” (see Step Gross Initial Margin).
  • RiskType {“PV”} and IMModel { “Schedule”} - filter “AmountUSD” to obtain PV (see Step NGR)
  • ProductClass {“Rates”, “FX”, “Credit”, “Commodity”, “Equity” or “Other”} - is used to look up Margin Rate
  • EndDate - is used to compute maturity in years and look up Margin Rate

See also