as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
what does it mean for a company to have its market cap larger than the market size?
user
it is always possible for a company's valuation in the market to be larger than the market it serves, and in fact it is not uncommon.  there's valid argument that uber would be a good example of this, with a market cap of more than $60 billion.  market cap is the total value of all shares outstanding.  keep in mind that what a company's shares  trade for is less a reflection of its past (or, to some degree, even present) revenue activity and more of a speculative bet on what the company will do in the future.
assistant