hang on

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He said despite being ultimately owned by pension fund members, who have a long-term investment horizon, companies feel under constant and immediate pressure to perform. 'It's completely mad,' he says. 'Business people need to think: Hang on a minute, when I think about creating value for owners, I need to remember that the shareholders are millions of people. And pensioners need to think: What is my role as a capitalist?'

Does Hang on a minute mean wait a minute? If not, what does Hang on a minute mean?
Quoc