---
title: "Basel Operational Risk SMA (2026 Reproposal)"
method: POST
path: "/v1/tools/compute_oprisk_sma_2026"
tags: ["TODO_TAGS_REVIEW", "TODO_AP2_EXPORT_REVIEW"]
---

# Basel Operational Risk SMA (2026 Reproposal)

`POST /v1/tools/compute_oprisk_sma_2026`

## Request

- Base URL: `https://ainumbers.co`
- URL: `https://ainumbers.co/v1/tools/compute_oprisk_sma_2026`
- Auth: none declared

Basel Standardized Measurement Approach (SMA) for operational-risk capital per the July 2026 US Basel Endgame reproposal (comment period closed 2026-06-18, final expected ~Q4 2026): marginal Business Indicator Component across the $1bn/$30bn buckets (12%/15%/18%) and the Internal Loss Multiplier, applying the reproposal's US-variant ILM neutralization to 1 by default with a switch to model the non-neutralized BCBS d424 formula. rule_status: proposed -- re-pin at finalization. Formula-focused; does not model scenario/portfolio replay (see the SIM-REPLAY suite for that).

**Tool URL:** https://ainumbers.co/chaingraph/art-356-compute-oprisk-sma-2026.html

## Request body

- object
  - `annual_op_losses` unknown[], required
    - unknown
  - `fc_avg` number
  - `ildc_avg` number
  - `sc_avg` number
  - `use_us_ilm_neutralization` boolean, required

## Response `200`

Successful tool execution result

- object
  - `average_annual_loss` integer
  - `bucket` integer
  - `business_indicator` integer
  - `business_indicator_component` integer
  - `constants_version` string
  - `fc_avg` integer
  - `ildc_avg` integer
  - `internal_loss_multiplier` integer
  - `loss_component` integer
  - `note` string
  - `operational_risk_capital` integer
  - `regulatory_basis` string
  - `rule_status` string
  - `rwa` integer
  - `sc_avg` integer
  - `use_us_ilm_neutralization` boolean

---

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