The cable is one of a few slang terms for different currency pairs; in this case, referring to British pound sterling against the US dollar. This may also be shown as GBP/USD or GBPUSD. Occasionally, people also refer to the price of the British pound as cable.
A company’s bottom line is an important factor in share trading. Variously, it can be used to refer to the net earnings or earnings per share (EPS) of a business.