Code point
U+3291
Glyph appearance depends on your fonts.
U+3291
So<circle> 682AU+3291 CIRCLED IDEOGRAPH STOCK is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the Enclosed CJK Letters and Months block.
Choose the representation you need, then copy its value.
U+3291
12945
㊑
㊑
E3 8A 91
3291
00003291
%E3%8A%91
\u3291
\u3291
\u3291
\3291