Logistics services provider Shadowfax's ₹1,907-crore IPO will be the sole mainboard offering opening in the week starting January 19. In the SME segment, Digilogic Systems, KRM Ayurveda and Shayona Engineering will launch their IPOs. Bharat Coking Coal, whose IPO was subscribed nearly 147 times on the final bidding day, will also list on the exchanges next week.