---
type: DecisionTool
title: "Basel Operational Risk SMA (2026 Reproposal)"
description: "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)."
resource: https://ainumbers.co/chaingraph/art-356-compute-oprisk-sma-2026.html
tags: ["capital_assessment", "wave-62", "mcp:compute_oprisk_sma_2026"]
timestamp: 2026-07-14
generated: { by: "ainumbers/generate-okf", at: "2026-07-14" }
status: stable
sources:
  - resource: https://ainumbers.co/chaingraph/graph/nodes/art-356-compute-oprisk-sma-2026.json
    title: "chaingraph.json shard entry"
  - resource: https://ainumbers.co/chaingraph/art-356-compute-oprisk-sma-2026.html
    title: "public tool page"
---

# Basel Operational Risk SMA (2026 Reproposal)

> Exports a decision via MCP `compute_oprisk_sma_2026` — mandate type `capital_assessment`.

## Inputs

Typed `inputSchema` — see [tool page](https://ainumbers.co/chaingraph/art-356-compute-oprisk-sma-2026.html).

## Outputs

A hash-anchored OpenChainGraph artifact (decision, not context).

## Chains

**Consumes:** _none (root node)_

**Feeds:** _terminal node_

## Attested computation

[executor + attester binding](../computations/art-356-compute-oprisk-sma-2026.md) — §10.2.