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ETF Avg Premium/Discount

Weighted avg ETF premium/discount

PropertyValue
CategoryETF Analytics
UnitDimensionless
Resolution1d
AssetsBTC
TierBasic
API EndpointGET /v1/etf/aggregate
Fieldpremium_avg

Overview​

ETF Average Premium/Discount measures the AUM-weighted average deviation between ETF share prices and their underlying Net Asset Value (NAV) across all tracked Bitcoin ETFs. A premium means ETF shares trade above NAV (investors pay more than the underlying BTC is worth); a discount means shares trade below NAV.

Premium/discount dynamics are a direct measure of supply-demand balance in the ETF share market. When demand for ETF shares exceeds the pace at which Authorized Participants can create new shares, a premium develops. Conversely, when redemption pressure exceeds creation, a discount develops.

This metric is AUM-weighted, meaning larger funds (like IBIT and FBTC) have proportionally more influence on the aggregate figure than smaller funds. This ensures the metric reflects the premium/discount experienced by the majority of capital.

Formula​

Premium Avg=∑i=1Npremium_disci×aumi∑i=1Naumi\text{Premium Avg} = \frac{\sum_{i=1}^{N} \text{premium\_disc}_i \times \text{aum}_i}{\sum_{i=1}^{N} \text{aum}_i}

where premium_disci\text{premium\_disc}_i is the reported premium/discount percentage for ETF ii and aumi\text{aum}_i is its AUM. Only ETFs with non-NULL premium_disc and positive AUM are included.

Interpretation​

  • Positive premium: Strong demand for ETF shares — creation mechanism is lagging demand. Often seen during rapid inflow periods.
  • Negative discount: Selling pressure exceeds creation capacity, or AP arbitrage is slow. Historically associated with GBTC's prolonged discount before ETF conversion.
  • Near-zero (tight to NAV): Healthy, efficient market with active AP arbitrage keeping prices close to fair value. This is the expected state for liquid, well-functioning ETFs.
  • Wide premiums/discounts: May indicate market stress, liquidity issues, or regulatory uncertainty that disrupts the creation/redemption mechanism.

Use Cases​

  • Market efficiency monitoring: Track how efficiently the ETF creation/redemption mechanism is working across the market.
  • Demand urgency gauge: A widening premium indicates demand is outpacing the AP's ability to create shares — a sign of urgency.
  • Arbitrage opportunities: Persistent premiums or discounts present arbitrage opportunities for sophisticated traders.
  • Market stress indicator: Wide discounts across multiple ETFs can signal systemic selling pressure or market dislocation.

API Usage​

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