Rio Tinto Non-GAAP EPS of $4.21, revenue of $31.03B misses by $260M
* Rio Tinto press release [https://seekingalpha.com/pr/20598639-rio-tinto-step-change-in-performance-delivering-higher-shareholder-returns] (RIO [https://seekingalpha.com/symbol/RIO]): 1H Non-GAAP EPS of $4.21. * Revenue of $31.03B (+15.5% Y/Y) misses by $260M. * Step-change in financial performance, generating underlying EBITDA of $14.8 billion (+28%), and free cash flow3 of $3.8 billion (+75%). * Underlying …