---
title: "OutputRiskRiskStatisticsSecurityItem"
url: "https://developer-beta.morningstar.com/apis/portfolio-xray-api/versions/4c9879bf-1def-4f49-adea-5a04cd02e29e/schemas/OutputRiskRiskStatisticsSecurityItem"
---

> Full API specification: https://developer-beta.morningstar.com/apis/portfolio-xray-api/versions/4c9879bf-1def-4f49-adea-5a04cd02e29e.md

# OutputRiskRiskStatisticsSecurityItem

## OpenAPI definition

```yaml
openapi: 3.1.0
info:
  title: Portfolio X-Ray API
  version: "1.0"
servers:
  - url: https://www.us-api.morningstar.com
    description: Americas Production
  - url: https://www.apac-api.morningstar.com
    description: APAC Production
  - url: https://www.emea-api.morningstar.com
    description: EMEA Production
components:
  schemas:
    OutputRiskSecurity.RiskStatisticsItem:
      type: object
      properties:
        Mean:
          type: number
          format: double
          description: Mean return over the trailing period.
        SharpeRatio:
          type: number
          format: double
          description: Risk-adjusted return per unit of risk. Year2 is not supported at
            the security level.
        StandardDeviation:
          type: number
          format: double
          description: Statistical measure of return dispersion around the mean, used as
            an indicator of volatility.
    OutputRiskRiskStatisticsSecurityItem:
      type: object
      properties:
        SecurityId:
          type: string
          description: Unique identifier of a security.
        Weight:
          type: number
          format: double
          description: Percentage of portfolio assets allocated to this holding.
        RiskStatisticsItem:
          $ref: "#/components/schemas/OutputRiskSecurity.RiskStatisticsItem"
```