G

A trademark used for a movie rating indicating that admission will be granted to persons of all ages.

A Nasdaq stock symbol specifying that it is the first preferred bond of the company.

Investopedia Says:
Nasdaq-listed securities have four or five characters. If a fifth letter appears, it identifies the issue as other than a single issue of common stock or capital stock.

a g	Smc2804wbrp G
g	Smcwtk-g