The show was named squawk on the Street, which makes me think more of puppets than stocks.
I would like you to tell Mrs. Meredith that the squawk is like all other babies in the world and hear what she has to say!
1821, probably of imitative origin (cf. dialectal Italian squacco "small crested heron"). The noun is attested from 1850. Squawk-box "loud-speaker" is from 1945.