iPath Series B S&P GSCI Livestock Index Total Return ETN (LSTK) is an exchange-traded note issued by Barclays Bank PLC that provides exposure to the S&P GSCI Livestock Index Total Return, tracking the performance of a diversified basket of livestock futures contracts including live cattle, feeder cattle, and lean hogs; it employs a pure beta strategy without active management or leverage to replicate index returns before fees and expenses. The ETN offers investors a convenient vehicle for gaining targeted commodity exposure in the livestock sector of the broader agriculture and commodities markets, with no direct physical ownership of underlying assets. Headquartered in London, United Kingdom, Barclays Bank PLC, the issuer founded in 1690, operates globally across investment banking, wealth management, and capital markets through subsidiaries in North America, Europe, Asia-Pacific, and other regions. In recent developments, Barclays has continued to evolve its exchange-traded products lineup, including enhancements to iPath ETNs amid ongoing market demand for commodity-linked instruments, while navigating regulatory updates in structured products as of 2025. The product targets institutional and retail investors seeking inflation hedges or diversification in portfolios focused on agricultural commodities.