Opendoor Technologies, Inc. OPEN are volatile Monday, coming off huge gains last week that saw the stock rise more than 50%. Despite the massive sentiment driven moves, new chairman Keith Rabois insists that Opendoor is not a meme stock. OPEN stock is moving on heavy volume. See the real-time chart here. Not A Meme Stock? In a CNBC interview on Friday, Rabois said that Opendoor is not a meme stock and pushed back on notions that its recent surge is purely sentiment-driven. Read Next: Opendoor Returns To ‘Fo ...