According to @ai_9684xtpa, $SLERF displayed a 4.6x spread with Binance perps peaking at $0.43, OKX spot at $0.39, and on-chain pricing near $0.09167, flagging extreme basis and index divergence risk, source: @ai_9684xtpa on X (Oct 18, 2025). The author reports SLERF is undergoing a contract swap, prompting multiple exchanges to pause spot trading, leaving Binance perps to reference OKX spot primarily, source: @ai_9684xtpa. With OKX deposits for SLERF paused, spot liquidity became a shallow pool easier to move, while on-chain depth stayed heavy, explaining the price gap, source: @ai_9684xtpa. The author warns that if Binance revises its index to include on-chain pricing, the perp price could drop sharply, and this setup differs from prior cases like “羊驼/MYX,” source: @ai_9684xtpa. Trading takeaway: monitor Binance index constituents and OKX deposit status, and be cautious with high-premium longs due to potential swift index-driven repricing, source: @ai_9684xtpa.