Tandem Diabetes Care (TNDM) shares rose 8.3% in Tuesday trading after Piper Sandler upgraded the stock to overweight from neutral and raised its price target to $33 from $21.
Intraday trading topped 2.6 million shares compared with the daily average of 1.84 million.
Price: 23.73, Change: +1.82, Percent Change: +8.31