get_institutional_holders

Get institutional holders (list of institutions holding the stock) information.

SERVERYahoo Finance MCP Server SOURCEa05031113/yahoo-fianace-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade A, identity unverified Pull the record →

This record as markdown: /tools/a05031113-yahoo-fianace-mcp/get-institutional-holders.md

WHAT IT DOES

What get_institutional_holders does on Yahoo Finance MCP Server

AI agents call get_institutional_holders to retrieve information from Yahoo Finance MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why get_institutional_holders is rated Low

This tool retrieves publicly available financial data about institutional stock ownership. It performs no writes, deletes, executions, or financial transactions. The blast radius of misuse is minimal—an agent could only retrieve information that is already public. This falls squarely into the Read category alongside sibling tools like get_current_stock_price and get_company_info.

From the tool's definition Tool name 'get_institutional_holders' and description 'Get institutional holders (list of institutions holding the stock) information' indicate a retrieval operation with no mutation or side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_institutional_holders safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Yahoo Finance MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get_institutional_holders, this is the rule to start with:

get_institutional_holders Allowed

get_institutional_holders is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_institutional_holders": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Yahoo Finance MCP Server, apply this rule, and every get_institutional_holders call is checked against it from then on.

FAQ

Questions about get_institutional_holders

What does the get_institutional_holders tool do? +

Get institutional holders (list of institutions holding the stock) information. It is categorised as a Read tool in the Yahoo Finance MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_institutional_holders? +

Register the Yahoo Finance MCP Server MCP server in PolicyLayer and add a rule for get_institutional_holders: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Yahoo Finance MCP Server. Nothing to install.

What risk level is get_institutional_holders? +

get_institutional_holders is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_institutional_holders? +

Yes. Add a rate_limit block to the get_institutional_holders rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block get_institutional_holders completely? +

Set action: deny in the PolicyLayer policy for get_institutional_holders. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides get_institutional_holders? +

get_institutional_holders is provided by the Yahoo Finance MCP Server MCP server (a05031113/yahoo-fianace-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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