TechFlow news, according to lookonchain data, on May 21, nine ETFs added 4,135 $BTC (+$290 million). Grayscale added 436 $BTC (+$30.58 million), currently holding 289,390 $BTC ($20.3 billion). Blackrock added 957 $BTC (+$67 million), currently holding 277,716 $BTC ($19.48 billion).





