Swiss-based fintech company 21Shares confimed a Bloomberg report that it has partnered with Cathie Wood-founded ARK Investment Management to refile for a spot-Bitcoin exchange-trade fund (ETF). Despite two previous filing rejections, 21Shares told CryptoSlate:

“It may be a protracted effort but we believe persistence will eventually pay off and the winners will be American investors.”

The partnership is filing for the ARK 21Shares Bitcoin ETF — set to trade under the ticker ARKB. The Bitcoin ETF would track Bitcoin’s price as measured by the S&P Bitcoin Index.