iPath Bloomberg Copper Subindex Total Return(SM) ETN (JJCTF), issued by Barclays Bank PLC, is an exchange-traded note that provides investors with exposure to the Bloomberg Copper Subindex Total Return, reflecting the returns available through an unleveraged investment in copper futures contracts traded on the COMEX exchange; the ETN pays no interest and tracks the index performance before fees and expenses, with an expense ratio of 0.75%. Launched on October 23, 2007, the senior, unsecured debt security matures on October 22, 2037, and is redeemable daily by holders in minimum denominations or by the issuer at its discretion. Barclays Bank PLC, headquartered in London, UK, and tracing its origins to 1690, structures and issues the iPath series of commodity ETNs globally through its investment banking arm, targeting institutional and retail investors seeking targeted commodity exposure without physical ownership. In June 2025, Barclays exercised its issuer call option, following prior tender offer consents, to mandatorily redeem the outstanding JJCTF notes in full on a specified redemption date, with valuation based on the closing indicative value, marking a significant wind-down of the product amid broader iPath ETN portfolio management actions including suspensions of new issuances since 2022 and resumed sales selectively thereafter. The ETN trades over-the-counter (OTCPK:JJCTF) and operates within the commodities sector, concentrating on copper price movements for hedging, speculation, or portfolio diversification by investors worldwide.