Jonathan Raa / NurPhoto via Getty Images Some companies that acquire ether and other "altcoins" have seen their shares jump lately. Key Takeaways Eightco Holding, Bitmine Immersion Technologies, and Sharplink Gaming, and others like them are scooping up non-bitcoin digital assets and seeing their stocks surge. The new wave of crypto-proxy stocks created in the style of Michael Saylor's Strategy could have legs if token prices keep up. A crypto market indicator has been signaling a revival in altcoins ...