Definition. Daily closing stock price of US-traded spot ETFs that hold the selected crypto asset as their underlying (e.g. IBIT, FBTC, GBTC for BTC; ETHA, FETH, ETHE for ETH). One series per ETF ticker.

Interpretation. Tracks the secondary-market price of each spot ETF, letting you compare performance across issuers and gauge relative investor demand. The price is already in USD, so it is directly comparable across tickers and over time.

Technical. Daily close price per ETF symbol from the US equity (OPRA) feed, denominated in USD. ETFs trade on weekdays only, so no datapoint is produced on weekends or market holidays.