Shares of the tech-driven B2B construction materials platform ArisInfra Solutions are trading at a grey market premium of 10.8% or Rs 24-25 in the unlisted market ahead of the opening of its initial public offering (IPO) on June 18.The GMP refers to the premium at which shares of an upcoming IPO are trading in the unofficial or grey market before they are listed on the stock exchange. A high or positive GMP suggests strong investor demand and that the stock is likely to list at a price above its issue price.A negative or zero GMP indicates weak demand and the possibility of a discount listing.However, one should note that GMP is not regulated by SEBI or stock exchanges and is driven by market sentiment and may not always reflect the actual listing price. It is often used by retail and HNI