Shares of Impinj (PI) have been strong performers lately, with the stock up 14.5% over the past month. The stock hit a new 52-week high of $190.22 in the previous session. Impinj has gained 107.3% since the start of the year compared to the 20.3% move for the Zacks Computer and Technology sector and the 24.2% return for the Zacks Electronics - Semiconductors industry. What's Driving the Outperformance? The stock has an impressive record of positive earnings surprises, as it hasn't missed our earnings consen ...