Back-to-back upper circuit: Shares of this microcap rubber manufacturer surge on name change! Back-to-back upper circuit: Shares of this microcap rubber manufacturer surge on name change! The share price of this company has given over 50 per cent return in just 6 trading sessions. Ashwin Urkude / Wednesday, June 14, 2023 / Article rating: 3.7 The share price of this company has given over 50 per cent return in just 6 trading sessions.