Grayscale has announced the launch of its Grayscale® Stacks Trust (ticker: STCK) on the OTCQB® market, marking the first publicly quoted investment product in the U.S. offering exposure to Stacks (STX). Initially launched in May 2024 as a private offering, STCK is now accessible through standard brokerage accounts, broadening investor access to digital assets. Rayhaneh Sharif-Askary, Grayscale's head of product and research, emphasized that this development allows Bitcoin-based smart contract assets to be integrated into traditional investment portfolios. Stacks founder Muneeb Ali noted that this move underscores Stacks' contribution to enhancing Bitcoin's programmability while preserving its network security, aiming to expand the Bitcoin ecosystem with smart contracts and decentralized applications.