Mutual Fund Holdings Tracker (N-PORT)

Mutual Fund Holdings Tracker extracts quarterly fund holdings from SEC EDGAR N-PORT-P filings — giving you a complete view of what any SEC-registered mutual fund owns. This covers Vanguard, Fidelity, BlackRock, T. Rowe Price, and 15,000+ other registered investment funds, updated with each quarterly filing.

Unlike 13F filings (which only cover hedge funds with >$100M AUM), N-PORT covers every SEC-registered mutual fund — including index funds, actively managed funds, and fixed income funds. This is the authoritative source for what institutional money is actually holding.

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Why use Mutual Fund Holdings Tracker?

1. Institutional ownership analysis — See which mutual funds own a stock and at what weight. A stock widely held by index funds has built-in buying pressure (and selling risk on rebalancing).
2. Fund drift detection — Track whether an "active" fund has drifted toward closet indexing. Compare quarterly holdings changes to identify drift from the fund's stated mandate.
3. Smart money position tracking — Follow star portfolio managers (Contrafund's Will Danoff, Dodge & Cox) by watching their quarterly N-PORT filings for new positions and trims.
4. ETF holdings vs benchmark — For ETFs that file N-PORT, compare actual holdings to stated benchmark to detect tracking error or deviation.
5. Fixed income fund monitoring — N-PORT covers bond funds, unlike 13F. Track which mutual funds are buying/selling specific corporate bonds, MBS, or government securities.

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How to use

1. Open the actor on Apify Store and click Try for free.
2. Set fundNames to search for specific funds by name, or use searchQuery for a broader search.
3. Set maxHoldings to limit how many holdings per fund to return (use 0 for all holdings).
4. Click Start. Each result is a fund filing with a nested holdings[] array.

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Input

Field	Type	Default	Description
fundNames	string	""	Comma-separated fund names (e.g. "Vanguard 500 Index Fund")
searchQuery	string	""	Free-text search for fund names in EDGAR (e.g. "Fidelity Contrafund")
daysBack	number	90	How far back to look for N-PORT-P filings
maxResults	number	5	Maximum number of fund filings to return
maxHoldings	number	100	Maximum holdings to return per fund (0 = all)

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Output

Each result is a fund filing with fund-level metadata and a holdings array:

{
  "fund_info": {
    "reg_name": "Vanguard Index Funds",
    "series_name": "Vanguard 500 Index Fund",
    "period_of_report": "2026-06-30",
    "total_assets": 983000000000,
    "net_assets": 981000000000
  },
  "holdings": [
    {
      "name": "Apple Inc",
      "cusip": "037833100",
      "isin": "US0378331005",
      "ticker": "AAPL",
      "balance": 1234567890,
      "value_usd": 245000000000,
      "pct_assets": 7.23,
      "asset_cat": "EC",
      "country": "US"
    }
  ],
  "holding_count": 503,
  "filing_date": "2026-08-14",
  "accession_no": "0000099580-26-000412"
}

Fund-level fields (fund_info)

Field	Description
reg_name	Fund registrant / management company name
series_name	Specific fund series name
period_of_report	Holdings period end date (YYYY-MM-DD)
total_assets	Total fund assets in USD
net_assets	Net assets (total assets minus liabilities)

Per-holding fields (holdings[])

Field	Description
name	Security name
cusip	CUSIP identifier
isin	International Securities Identification Number
ticker	Stock ticker (if available — not always present)
balance	Number of shares or units held
value_usd	Market value in USD
pct_assets	Holding as % of fund total assets
asset_cat	Asset category: EC (equity), DBT (debt), STIV (short-term), etc.
country	Country of investment

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N-PORT vs 13F comparison

Feature	N-PORT (this actor)	13F
Covers mutual funds	✅ Yes	❌ No
Covers hedge funds	❌ No	✅ Yes
Covers ETFs	✅ Yes (many)	Partial
Bond holdings	✅ Yes	❌ No
Filing frequency	Monthly (large) / Quarterly	Quarterly
Publicly accessible	✅ Yes (all N-PORT-P)	✅ Yes
Filing delay	60 days after period end	45 days after quarter end

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Cost estimation

Pay-Per-Event: $0.005 per actor start + $0.05 per fund filing returned.

The $0.05/filing reflects XML parsing of large N-PORT documents (some funds have 5,000+ holdings).

Use case	Filings	Estimated cost
3 Vanguard index funds	3	~$0.15/run
10 active growth funds	10	~$0.50/run
Sector sweep (20 funds)	20	~$1.00/run
Quarterly update (100 funds)	100	~$5.00/run

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FAQ

How current is the data? N-PORT-P filings are required within 60 days after the period end. So Q2 (June 30) data appears by late August. Large advisors file monthly for the most recent month.

Does it cover international funds or just US? N-PORT covers SEC-registered investment companies only. Foreign funds domiciled outside the US don't file N-PORT.

Can I track changes in holdings quarter-over-quarter? Run the actor for two consecutive quarters with the same fund and diff the holdings arrays. The actor does not automatically compute position changes, but the raw data supports this.

Why don't all holdings have tickers? N-PORT includes bonds, derivatives, and international securities that don't have tickers. ISIN/CUSIP are more reliable identifiers for fixed income holdings.

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Related actors

• Smart Money Wallet Tracker — On-chain equivalent: track institutional crypto wallets
• Activist Investor Tracker — 13D/13G activist disclosures (complements N-PORT institutional ownership)
• Corporate Bond Issuance Tracker — Primary market supply that N-PORT funds absorb

Feedback

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Keywords: mutual fund holdings, N-PORT filings, SEC EDGAR, institutional holdings tracker, Vanguard holdings, Fidelity holdings, BlackRock portfolio, fund portfolio scraper, EDGAR N-PORT-P, quarterly 13F alternative, fund position data, CUSIP lookup, NAV percentage, registered investment company, institutional ownership