26 characters in the Small Form Variants Unicode block.
U+FE50SMALL COMMAU+FE51SMALL IDEOGRAPHIC COMMAU+FE52SMALL FULL STOPU+FE54SMALL SEMICOLONU+FE55SMALL COLONU+FE56SMALL QUESTION MARKU+FE57SMALL EXCLAMATION MARKU+FE58SMALL EM DASHU+FE59SMALL LEFT PARENTHESISU+FE5ASMALL RIGHT PARENTHESISU+FE5BSMALL LEFT CURLY BRACKETU+FE5CSMALL RIGHT CURLY BRACKETU+FE5DSMALL LEFT TORTOISE SHELL BRACKETU+FE5ESMALL RIGHT TORTOISE SHELL BRACKETU+FE5FSMALL NUMBER SIGNU+FE60SMALL AMPERSANDU+FE61SMALL ASTERISKU+FE62SMALL PLUS SIGNU+FE63SMALL HYPHEN-MINUSU+FE64SMALL LESS-THAN SIGNU+FE65SMALL GREATER-THAN SIGNU+FE66SMALL EQUALS SIGNU+FE68SMALL REVERSE SOLIDUSU+FE69SMALL DOLLAR SIGNU+FE6ASMALL PERCENT SIGNU+FE6BSMALL COMMERCIAL AT