Grayscale has submitted an S-1 filing to the U.S. Securities and Exchange Commission (SEC) to introduce a spot ETF for BitTensor (TAO). This move marks an expansion of Grayscale's cryptocurrency ETF offerings, aiming to provide investors with direct exposure to BitTensor. The filing, reported on December 30, underscores Grayscale's continued efforts to broaden its ETF product line in the evolving digital asset market.