According to ChainCatcher, Grayscale official data shows that as of July 18, Grayscale GBTC held 272,159.646 BTC, a decrease of about 845.2991 from the previous trading day.
In addition, GBTC's asset management scale (non-GAAP) is US$17,286,922,087.68, and the circulating shares are 306,710,100.