Watch out for these penny stocks locked in the upper circuit on February 24 Watch out for these penny stocks locked in the upper circuit on February 24 The major equity indices saw modest advances during morning trading. While metal, power and utilities scrips fell, demand was high for realty and healthcare equities. Kaustubh Bhosale / Friday, February 24, 2023 / Article rating: 4.4 Olectra Greentech increased by 13.33 per cent.