Unlisted shares of Wakefit and Corona Remedies were trading at a premium of up to 18% in the grey market on Wednesday, ahead of their IPOs next week. Home and furnishings startup Wakefit has set a price band of ₹185-195 per share for its ₹1,289 crore IPO. Pharma firm Corona Remedies' IPO is worth ₹655.37 crore.