Tempus AI is still undervalued because its data business alone may be worth a large share of the company. Data and Applications revenue of about $400 million in FY26, growing at management's roughly 30% long-term rate, reaches about $676 million by FY28; at a conservative 12-14x sales that is $8.1-9.5 billion. That leaves the diagnostics business, with about $1.2 billion of revenue, valued at only about $4.5 billion. x.comÂ