AXIOS (Emily Peck) - How golden was Tim Cook's Apple?
Data: Financial Modeling Prep; Chart: Erin Davis/Axios Visuals Apple CEO Tim Cook hands the reins over to John Ternus Tuesday, stepping down after 15 years of running the company. Why it matters: He had an epic run. By the numbers: When Cook took over in August 2011, Apple's stock was trading at $13.35. It closed at $316.61 on Monday. Zoom in: That 2,272% gain easily outpaced the growth of the major stock indexes. - The company's market cap — the value of all its outstanding shares — is now $4.7 trillion, up from $347 billion in 2011. - Stunning stat: Under Cook, Apple's market cap grew by $32 million an hour for 15 years, Bank of America calculated last month. The big picture: Cook's big innovation was taking the company from its…