The grey market premium – the price in the unofficial market that investors pay for the unlisted shares before listing – was at ₹2 for Swiggy on Tuesday, a 0.5% premium to the upper price band of – ₹390. The grey market premium – the price in the unofficial market that investors pay for the unlisted shares before listing – was at ₹2 for Swiggy on Tuesday, a 0.5% premium to the upper price band of – ₹390. Economic Times