Vanguard Executive: Bitcoin is a speculative asset but acknowledges its potential real-world use during inflation or turmoil According to Cointelegraph, John Ameriks, Global Head of Quantitative Equity at asset management firm Vanguard, stated that Bitcoin is purely a speculative asset, similar to collectible toys. Although John Ameriks expressed criticism, he also mentioned that in cases of high inflation in fiat currencies or political turmoil, this cryptocurrency might find practical applications beyond market speculation.