Meaning of PLUS in English

PLUS

Dealers in government bonds normally give price quotes in 32nds. To quote a bid or offer in 64ths, they use pluses; a dealer who bids 4+ is bidding the handle plus 4/32 + 1/64, which equals the handle plus 9/64.

Campbell R. Harvey. Hypertextual finance English glossary.      Английский словарь гипертекстовых финансов.