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ETF BTC Holdings (Per Fund)

BTC held by a single ETF fund

PropertyValue
CategoryETF Analytics
UnitBTC
Resolution1d
AssetsBTC
TierPro
API EndpointGET /v1/etf/ticker
Fieldbtc_holdings

Overview​

ETF BTC Holdings (Per Fund) tracks the total amount of Bitcoin held by an individual ETF product over time. While aggregate ETF metrics show the combined picture across all funds, this per-fund metric reveals how individual products are accumulating or distributing BTC — essential for understanding competitive dynamics between ETF issuers.

Each ETF fund reports its total BTC holdings daily. This metric pulls the btc_holdings field from the etf/ticker endpoint for a specific ticker symbol (e.g., IBIT, FBTC, GBTC). The data enables direct comparison between funds to see which are gaining market share and which are losing it.

Formula​

BTC Holdingsi,t=btc_holdings reported by fund i on day t\text{BTC Holdings}_{i,t} = \text{btc\_holdings reported by fund } i \text{ on day } t

No computation is required — this is a directly reported value from each ETF fund's daily disclosure.

Interpretation​

  • Rising holdings: The fund is experiencing net inflows — investors are buying shares and the fund is acquiring BTC to back them.
  • Falling holdings: The fund is experiencing net redemptions — investors are selling shares and the fund is liquidating BTC.
  • Flat holdings: No net flow — inflows and outflows are balanced.
  • Cross-fund comparison: Plotting multiple funds reveals competitive dynamics. For example, GBTC experienced sustained outflows post-conversion while IBIT and FBTC captured the majority of new inflows.

Use Cases​

  • Fund-level analysis: Track individual ETF accumulation and distribution patterns independently from the aggregate.
  • Competitive landscape: Compare holdings across IBIT, FBTC, GBTC, and others to understand market share shifts.
  • Flow attribution: When aggregate holdings change significantly, per-fund data reveals which fund drove the change.
  • Risk assessment: Monitor concentration risk — if a single fund holds a disproportionate share of total ETF BTC.

API Usage​

curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://api.blocklens.co/v1/etf/ticker?start_date=2024-01-01&end_date=2024-12-31&limit=365"