Grayscale Premium

Grayscale trust (now spot ETF) shares can trade above or below their per-share net asset value (NAV). Premium = (Price − NAV) / NAV. GBTC famously traded at discounts beyond -40% during its 2021-2023 trust era; after converting to an ETF in early 2024, in-kind creation/redemption arbitrage keeps it near zero.

In the ETF era the premium is less a sentiment gauge and more a mechanism-health check: persistent deviation from zero signals impaired create/redeem flow or extreme dislocation, and meaningful discounts typically coincide with liquidity stress.