Union (U) was the biggest crypto gainer in the 24-hour snapshot for Tuesday, Aug. 25, rising 61.74%. Dog (Bitcoin) (DOG) gained 19.35%, while Cysic (CYS) climbed 16.30%. Zama (ZAMA) led the decliners, falling 11.24%, followed by Ribbita by Virtuals (TIBBIR), down 10.77%, and Official Trump (TRUMP), down 9.63%.