Airbnb is set to debut as a public stock Thursday on Wall Street, one day after the online marketplace for home rentals priced its initial public offering at $68 per share. That was above the most recent expected per-share range of $56 to $60, valuing the company at about $47.3 billon. (Reuters) Airbnb's IPO follows the huge market debut of DoorDash (DASH). Shares of the food delivery service were under some pressure in premarket trading after skyrocketing more than 85% on Wednesday. The closing price values DoorDash at $60.2 billion, about 10 times larger than stock market rival GrubHub. (CNBC) * C3.ai IPO skyrockets with 100%-plus gain in its first day of trading (CNBC) * PubMatic, a 14-year-old ad tech company, pops nearly 50% on IPO (CNBC)