Crypto ETF Flow Tracker

Track daily institutional flows into US-listed Bitcoin, Ethereum, and Solana spot ETFs. Spot smart-money rotation and supply-absorption trends. No API key required.

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What It Does

Pulls daily net inflow/outflow data for all US-listed spot crypto ETFs (BlackRock IBIT, Fidelity FBTC, ARK ARKB, BlackRock ETHA, Fidelity FETH, etc.) — aggregated by issuer category. Use it to:

• Track BTC ETF accumulation trends (institutional flows are a leading indicator)
• Compare BTC vs ETH vs SOL flow strength to detect rotation
• Watch cumulative AUM growth across all issuers
• Alert when daily flows spike — large outflows often precede dumps; large inflows often precede rallies

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Why ETF Flows Matter

Since the January 2024 SEC approval of US spot Bitcoin ETFs, institutional flow data has become the most reliable leading indicator for major moves:

• Sustained inflows ($500M+/day) often precede 5–15% rallies within a week
• Sustained outflows signal de-risking — historically aligned with multi-week drawdowns
• Rotation patterns (BTC outflows ↔ ETH inflows) reveal smart-money sector bets

This Actor gives you the raw daily series in a machine-readable format you can plug into your bot, dashboard, or alert pipeline.

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Input

Field	Type	Default	Description
etfTypes	string[]	["us-btc-spot","us-eth-spot","us-sol-spot"]	Which ETFs to track. Supported: us-btc-spot, us-eth-spot, us-sol-spot
lookbackDays	integer	30	Days of history to return (1–300)
sortBy	string	date_desc	date_desc, date_asc, abs_inflow_desc
alertOutflowUsd	integer	0	Alert when latest day's net outflow exceeds this $ amount. 0 = disabled
alertInflowUsd	integer	0	Alert when latest day's net inflow exceeds this $ amount. 0 = disabled
telegramBotToken	string (secret)	—	Telegram bot token for alerts
telegramChatId	string	—	Chat ID to receive alerts

Example: Last 7 days, all ETFs

{
  "etfTypes": ["us-btc-spot", "us-eth-spot", "us-sol-spot"],
  "lookbackDays": 7,
  "sortBy": "date_desc"
}

Example: Telegram alert on any BTC ETF day with > $1B outflow

{
  "etfTypes": ["us-btc-spot"],
  "lookbackDays": 1,
  "alertOutflowUsd": 1000000000,
  "telegramBotToken": "<token>",
  "telegramChatId": "<chat_id>"
}

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Output

Each record is one daily aggregate per ETF type:

{
  "etf_type": "us-btc-spot",
  "date": "2026-06-01",
  "net_inflow_usd": -483760871.60,
  "value_traded_usd": 2963023284.40,
  "total_net_assets_usd": 91160255779.37,
  "cum_net_inflow_usd": 55178763954.85,
  "aum_change_pct": -3.20,
  "is_inflow": false,
  "is_outflow": true,
  "row_index": 299
}

Field	Description
net_inflow_usd	Daily creation minus redemption value. Negative = net outflow
cum_net_inflow_usd	All-time cumulative net flow into the asset class
total_net_assets_usd	Total AUM across all ETFs in this category at end of day
value_traded_usd	Daily dollar volume across all ETFs in this category
aum_change_pct	Day-over-day AUM change (combines flows + price movement)

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Pricing

Pay-Per-Event (PPE):

• $0.001 per daily flow row returned

Examples:

• 30 days × 3 ETFs = 90 rows = $0.09
• Full 300 days × 3 ETFs = 900 rows = $0.90

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Use Cases

Daily flow dashboard — Run every morning and pipe results into Notion/Sheets:

curl -X POST "https://api.apify.com/v2/acts/gochujang~crypto-etf-flow-tracker/runs?token=YOUR_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"lookbackDays": 30, "sortBy": "date_desc"}'

Outflow panic alert — Alert when BTC ETFs lose >$500M in a single day:

{
  "etfTypes": ["us-btc-spot"],
  "lookbackDays": 1,
  "alertOutflowUsd": 500000000,
  "telegramBotToken": "<token>",
  "telegramChatId": "<chat>"
}

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Data Source

All data comes from SoSoValue — the industry-standard public ETF flow aggregator covering all approved US spot crypto ETFs. Data updates ~1 hour after US market close.

• No API key required
• No rate limits at single-actor scale
• Up to ~300 days of historical daily data per ETF type

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Related Actors

Build a complete crypto edge with these actors from the same author:

• Polymarket Odds Tracker — Macro/event probability context for ETF approval/rate-cut predictions.
• Bitcoin Mempool Analytics — On-chain BTC activity that often precedes ETF flow changes.
• Smart Money Wallet Tracker — Track 238 smart wallets to see early on-chain moves.
• Token Unlock Calendar — Upcoming VC unlocks before dumps.

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🎬 Live Sample Run

A real run of this actor with default-ish inputs, executed on 2026-06-10:

Field	Value
Items in dataset	62
Dataset (JSON)	https://api.apify.com/v2/datasets/UNfMKYPQsK7Cl8sO6/items?clean=1&format=json
Dataset (CSV)	https://api.apify.com/v2/datasets/UNfMKYPQsK7Cl8sO6/items?clean=1&format=csv
Run summary (KVS)	https://api.apify.com/v2/key-value-stores/7buzoaJEaicBnSN1e/records/SUMMARY
Run details	https://api.apify.com/v2/actor-runs/WAShrxSaal5MyyS7P

Try it now: pop any of the dataset URLs in your browser to see live output, or hit the API endpoints from your code.

Want to reproduce? Click Try Actor on the Apify Store page and use the input defaults shown above.

Feedback

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