IPO GMP race: Jio Platforms initial public offering (IPO) witnessed robust demand on Day 1, garnering 3.04 times subscription on Wednesday, October 21. Its latest grey market premium today (GMP) indicated potential listing gains of around 22%.In contrast, Paras Healthcare, which also opened for subscription on the same day, saw a muted response, with its GMP pointing to estimated listing gains of 4.04%.