A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
o
option writer
optionable stock
optional dividend
optionee
Options Clearing Corporation
Options Prices Reporting Authority
or better
order
order book official
order flow
order imbalance
Options Prices Reporting Authority
Abbreviated
as OPRA, refers to a subscription service that disseminates inside quotations and last sale data for options.
