Impinj easily beat estimates in the second quarter.Shares of Impinj (PI 4.41%) were climbing today after the RFID tag specialist posted better-than-expected results in its second-quarter earnings report.As a result, the stock was up 3.6% as of 3:09 p.m. ET. Impinj impresses againImpinj, whose stock has been soaring since a slowdown during the pandemic, said revenue jumped 19% to $102.5 million, easily beating estimates of $97.5 million.Gross margin also soared in the quarter, jumping from 51% to 56.1%, show ...