MP Materials gains on smaller quarterly loss

** Shares of rare earth miner MP Materials MP.N rise 9% to$77.52 premarket

** Posts Q2 adjusted loss of 13c/shr vs 19c/shr loss expected - data compiled by LSEG

** Rare earths concentrate production jumps 45%

** Production for two in-demand rare earths, neodymium and praseodymium (NdPr), jumped nearly 120%

** Guides Q3 NdPr oxide output up 10%-20% sequentially

** 9 of 13 brokerages rate stock "buy" or higher, 4 "hold;" median PT is $68.68 - data compiled by LSEG

** Up to last close, MP shares up 355.6% YTD