Arbitrum (ARB) rose 33.80% in 24 hours to $0.115258, rebounding from its August 16, 2026, all-time low of $0.0727. The token remains about 78.9% below its September 13, 2025, all-time high of $0.5475 after spending roughly 207 days in a bottoming zone. Reported spot turnover reached about $0.51 billion, but transfer analysis flagged 98.9% of volume as wash trading across 901 wallets, with only 1,017 of 20,000 sampled transfers classified as clean. No verified Arbitrum governance, product or partnership announcement was identified as a catalyst. Exchange data showed about 202,080 more ARB deposited than withdrawn on September 1, while 1,078 wallets accumulated through the bottom zone without selling. However, some large accumulators routed tokens to Bybit and Binance hot wallets, leaving the rebound vulnerable if distribution increases. The ARB contract carries a CAUTION flag linked to a proxy contract, although screening found no mintable, honeypot or pause functions.