Analyst Brad Erickson at Pacific Crest Securities downgraded IMPINJ Inc. (NASDAQ: PI) from Overweight to Sector-Weight rating. IMPINJ shares fell to 7.18 percent at $55.11 on Tuesday.This comes as the stock has more than doubled in the past thr..

With oil prices sliding, the Standard & Poor 500 index closed with a 0.1 percent or 1.42 points loss at 2,435.61 on June 21 due to losses made by the energy sector. Eight of 11 principal sectors went into negative territory. A surge in the biote..