Bitcoin Cash surged as much as 30% this week following CME Group's announcement that it will launch futures contracts for the asset on Oct. 19, pending regulatory review. The move makes Bitcoin Cash the exchange's tenth single-asset crypto contract, with Uniswap serving as the eleventh. Standard contracts will represent 250 BCH, while micro versions covering 25 BCH are designed for smaller traders. Giovanni Vicioso, CME's global head of cryptocurrency products, stated that these instruments provide institutions with broader, regulated tools to navigate digital asset price risk. The rally was further fueled by Grayscale filing to convert its Bitcoin Cash Trust into a spot ETF for NYSE Arca listing, pushing BCH's weekly gain past 50% at its peak.

While Bitcoin itself slipped toward $84,000 from a seven-month high near $87,250, Bitcoin SV, a fork of Bitcoin Cash born out of the 2018 "Hash War," gained roughly 20% in sympathy, touching an annual high near $21. Open interest in BSV derivatives climbed alongside the price, indicating new position entries rather than short covering. Spot Bitcoin ETFs recorded $715 million in inflows on Tuesday, even as the underlying coin's price stalled. Historically, Bitcoin forks tend to experience sharp, short-lived rallies before retracing gains, particularly given their lower market capitalizations which increase volatility susceptibility.