Watch out for these penny stocks locked in the upper circuit on March 08 Watch out for these penny stocks locked in the upper circuit on March 08 As Fed Chair Jerome Powell stated during his appearance before Congress that the US central bank is likely to hike interest rates more than previously anticipated. Kaustubh Bhosale / Wednesday, March 8, 2023 / Article rating: 3.9 As investors resumed trading after the Holi holiday, the Indian market indices, Sensex and Nifty50 dipped on Wednesday.