SUI rose 28% in 24 hours to $1.04 on September 21, 2026, extending a broader recovery in crypto risk assets and lifting its market capitalization to about $4.256 billion. Spot trading volume reached roughly $2.067 billion, while SUI futures volume climbed 142.38% to $2.93 billion and open interest increased 40.31% to about $1.05 billion. Technical analysts identified $0.9725 and $0.98 as important support areas, while $1.03, $1.05 and $1.40 were key levels above the market. The Relative Strength Index stood at 77, indicating elevated momentum and raising the risk of a pullback. The advance followed previous failed attempts to hold above $1.05, including a May breakout, and followed an August rally from $0.635 to $0.954 that later reversed to $0.673. No SUI-specific catalyst from Mysten Labs or the Sui Foundation has been independently verified.