Vacation home rental company Airbnb narrowly beat estimates for third-quarter revenue on Thursday, although profit fell short as it spent heavily on marketing to boost its presence in international markets.

The short-term rental company posted higher revenue in the third quarter as North American travel trends improved.

In the options pits, Airbnb stock has already seen 15 times the intraday volume. So far, 15,000 calls and 25,000 puts have traded hands, and new positions are opening at the top two contracts, the December 120 and 130 puts.