ETF Holdings Tracker

Track ETF constituents and weights, parsed into clean JSON. Built for analysts, funds, fintech builders and AI agents. Factual public market data — not financial or investment advice.

📊 Sample Output

etf_name	etf_issuer	etf_aum_billion_usd	etf_aum_usd	holding_name	holding_sector
State Street SPDR S&P 500 ETF	State Street	803.33	803330000000	NVIDIA Corporation	Technology
State Street SPDR S&P 500 ETF	State Street	803.33	803330000000	Apple Inc.	Technology
State Street SPDR S&P 500 ETF	State Street	803.33	803330000000	Microsoft Corporation	Technology
State Street SPDR S&P 500 ETF	State Street	803.33	803330000000	Amazon.com, Inc.	Consumer Discretionary
State Street SPDR S&P 500 ETF	State Street	803.33	803330000000	Alphabet Inc.	Communication Services
State Street SPDR S&P 500 ETF	State Street	803.33	803330000000	Broadcom Inc.	Technology

Real rows from run 2YboMYBuLqcD8NUgA on build 0.0.16 (2026-09-25), unedited apart from masked emails/phones and shortened long text; fields the source does not publish are empty.

⚙️ Sample inputs

This is the Store example input — the same input Apify's automated check runs — so it is proven to return rows on the current build. Paste it into the input form, or send it through the API, CLI or a schedule:

{
  "etf_symbols": [
    "SPY",
    "QQQ",
    "VTI"
  ],
  "limit": 1000,
  "max_holdings_per_etf": 100,
  "min_weight_pct": 0,
  "country": "all",
  "issuer": "all"
}

🔧 Input reference

Field	Type	Default	What it does
etf_symbols	array	["SPY", "QQQ", "VTI"]	US-listed ETF tickers to pull holdings for. Defaults to SPY, QQQ and VTI when left empty, so a run with no input still returns rows. Each ETF is fetched independently and emits on…
limit	integer	1000	Hard cap on total holding records emitted across every ETF requested. Set to 0 to disable the cap. This caps the dataset AFTER per-ETF max_holdings_per_etf has been applied — use…
max_holdings_per_etf	integer	25	Cap on constituents returned per ETF. Use 10 for top-10 sampling, 0 for everything the source returns. The source currently returns at most 25 per ETF, so values above 25 have no…
min_weight_pct	number	0	Filter out holdings below this weight threshold (in percent of ETF AUM). Use 0.5 to keep only positions above 0.5% of AUM, 0 for everything.
country	string (all, United States, China, Japan, United Kingdom, Canada, Germany, France, …)	"all"	Filter holdings by inferred country of incorporation. 'all' returns everything. Country is inferred from the holding's ticker and legal-entity name, not read from a filing.
issuer	string (all, iShares, Vanguard, State Street, Invesco, ARK, JPMorgan, Schwab, …)	"all"	Filter the requested ETFs by sponsor. 'all' returns every issuer. Issuer is inferred from the ETF's name.
monitor_new_only	boolean	false	Optional monitor mode. When true (and monitor_key set), emit only holdings not seen in prior runs of the same monitor_key — captures additions/changes on a schedule. Default off =…
monitor_key	string		A unique label for your scheduled watch. State is isolated per key so schedules never share a seen-set. Required for monitor mode.

🧾 JSON sample record

One real record from run 2YboMYBuLqcD8NUgA (emails/phones masked, long text shortened):

{
  "etf_symbol": "SPY",
  "etf_name": "State Street SPDR S&P 500 ETF",
  "etf_issuer": "State Street",
  "etf_aum_billion_usd": 803.33,
  "etf_aum_usd": 803330000000,
  "holding_symbol": "NVDA",
  "holding_name": "NVIDIA Corporation",
  "holding_sector": "Technology",
  "weight_pct": 8.22,
  "shares_held": 298385133,
  "market_value_usd": 66033726000,
  "holding_country": "United States",
  "as_of_date": "2026-09-25",
  "etf_holdings_url": "https://stockanalysis.com/etf/spy/holdings/",
  "data_source": "stockanalysis.com"
}

💰 Pricing

Event	Price (USD)	When it is charged
Actor Start (apify-actor-start)	$0.01	Charged when the Actor starts running. Number of events charged depends on Actor memory (one event per GB, minimum one event).
ETF holding record (apify-default-dataset-item)	$0.1	Charged per ETF holding returned with symbol, weight, shares, market value, sector, and country exposure.

Pay-per-event: you pay only for what the run delivers. A run that delivers nothing bills no result events (only the actor-start event, when the actor defines one). Example: a run that delivers 100 results costs 100 × $0.1 = $10.00 plus the start fee.

🔗 Related Actors

More from the NexGenData SEC & US filings family:

• Earnings Calendar — Upcoming Report Dates API
• Earnings Estimate Revisions Tracker — EPS Changes API
• Earnings Call Transcripts — Parsed Q&A & Metrics API
• EU MAR Insider Transactions Tracker (IT+NL+ES+BE)
• HKEX Insider & Short Tracker — 內幕權益 API
• SEC Insider Cluster Detector — Coordinated Form 4 Buys

48 more in this family on the NexGenData Store page.

🗂 Where the data comes from

Holdings, weights, share counts and fund-level assets are parsed from the public ETF pages on stockanalysis.com (https://stockanalysis.com/etf/{ticker}/holdings/ and /etf/{ticker}/). Every record carries that source URL in etf_holdings_url and "data_source": "stockanalysis.com".

This Actor does not read SEC EDGAR, N-PORT or 13F filings, and records do not carry sec.gov links. For filing-derived holdings see the related SEC actors below.

Coverage limit you should know about before you run it. The source's free holdings page currently returns only the top 25 constituents by weight per ETF and states the rest are behind its subscription (for example "Showing 25 of 505 holdings" for SPY, 25 of 105 for QQQ, 25 of 47 for ARKK). This Actor returns what the source returns, reports the truncation in the run status message and in the OUTPUT record, and never fabricates the missing constituents.

📊 What you get

Clean JSON, one record per holding (15 fields):

• etf_symbol, etf_name, etf_issuer, etf_aum_usd, etf_aum_billion_usd
• holding_symbol, holding_name, weight_pct, shares_held
• market_value_usd — computed as ETF AUM × weight %
• holding_sector, holding_country — inferred from the ticker and company name, not read from a filing
• as_of_date, etf_holdings_url, data_source

💵 Pricing

• Actor start: $0.01 per event (one event per GB of run memory, minimum one)
• Result: $0.10 per holding record — about 10 records per $1

One charge per record delivered:

• No etf_symbols given → the run uses the default tickers SPY, QQQ and VTI (the same three the Console form prefills) and bills only the records it delivers.
• A ticker the source doesn't cover (HTTP 404) → no records, no charge; it is named in the status message.
• Source blocked, non-200, or the holdings table missing → three attempts with a fresh residential proxy session each time; if no ETF yielded anything, the run fails with a status message naming the cause instead of finishing green and empty.
• Run time limit → the Actor stops cleanly, says "stopped early at the run time limit", and bills only the records already delivered.
• Charge limit → delivery stops the moment the run's charge limit is reached; a record is never delivered without its charge.

🤖 Use with AI agents

Structured, source-linked data for LLM and agent pipelines — point Claude, the OpenAI Agents SDK, an n8n flow or any MCP-aware client at it.

Sample agent prompt:

List the top 20 holdings and weights for an ETF as JSON.

Agentic payments (x402): Supports agentic payment via x402 — agents can call this actor with USDC, no API key required.

⏰ Run on a schedule (monitor mode)

Set monitor_new_only: true and a unique monitor_key. Each scheduled run then emits only holdings not seen before for that key (new positions), billed only for those.

1. Open the actor → Schedules → Create new schedule.
2. Set etf_symbols, monitor_new_only: true, and monitor_key to a unique label.
3. Save. State is isolated per key.

Leave monitor_new_only off for the full snapshot (default).

🔗 Related SEC actors

Filing-derived holdings: 13F Tracker Pro, 13F Delta Tracker, N-PORT Holdings, N-PORT-P Holdings

Agent front doors: SEC Corporate Events MCP, Regulatory Filings MCP

---

Public market data parsed from stockanalysis.com. Not financial or investment advice. Not affiliated with the U.S. SEC or with any ETF issuer.