---
title: "PUT /v1/Securities/{instance}"
method: PUT
path: "/v1/Securities/{instance}"
tags: ["Securities"]
---

# PUT /v1/Securities/{instance}

`PUT /v1/Securities/{instance}`

## Request

- Base URL: `https://app.fixsim.com`
- URL: `https://app.fixsim.com/v1/Securities/{instance}`
- Auth: none declared

## Path parameters

- `instance` string, required

## Request body

- NewSecurity
  - `Symbol` string
  - `LastPx` number, double
  - `CUSIP` string
  - `ISIN` string

## Response `204`

No Content

---

[API](https://skmtc.dev/fixsim/apis/fixsim-web-api-beta.md) · [All operations](https://skmtc.dev/fixsim/apis/fixsim-web-api-beta/llms.txt) · [OpenAPI document](https://skmtc.dev/fixsim/apis/fixsim-web-api-beta/revisions/4dd9d40b01d6?raw)