Use in AI
Add one URL to Claude or Cursor and ask things like "How has NPS's stake in Samsung Electronics changed?". Nothing to install.
https://whohold.com/mcpClaude.ai
- Settings → Connectors → Add custom connector
- Name it HOLD, paste the URL above, and add
- Turn the connector on in a new chat and ask
Claude Code
claude mcp add --transport http hold https://whohold.com/mcp
Cursor
Settings → MCP → Add server, then paste this.
{ "mcpServers": { "hold": { "url": "https://whohold.com/mcp" } } }Things to ask
How did NPS's stake in Kakao change over the last year?
Every stock NPS reduced this week
Korean stocks where BlackRock holds over 5%
Average price the largest holder of Pan Ocean paid
8 tools
search_symbolFind a listed company by name or tickersearch_holderFind a holder by name. Korean input also matches foreign managersget_holdersA stock's 5% holders, stakes, and indirect holdersget_holder_historyA stock's stake change history, with actual change datesget_portfolioEverything a holder owns, including indirect stakesget_avg_costAverage purchase price from prices in the original filingsget_recent_changesChange filings in the last N days, optionally for one stockget_filingOne filing's trades: date, method, shares, priceGood to know
- Every answer carries the filing date (as_of) and a DART link. 5% changes are reported within 5 business days, so the trade may predate the filing.
- Only 5% holding reports and 1%+ insider reports are covered. Smaller holdings and total foreign ownership are not filed.
- Simplified reports from NPS and foreign funds legally omit purchase prices. Average cost appears only in regular reports (largest holders, individuals).
- Data updates twice on weekday evenings. Investment decisions and their results are the user's responsibility.
Filings: FSS DART OpenAPI. Prices: Naver Finance. Free to use; excessive calls may be limited.