Pete Najarian Sees Unusual Activity In Sunrun

On CNBC's "Fast Money Halftime Report," Pete Najarian spoke about bullish options activity in Sunrun Inc RUN. He said that options traders were buying the October $18 calls in the name. Around 12,000 contracts were traded in the first half of the trading session. Najarian finds the stock interesting because it's a play on housing. 

Sunrun gained around 4.5% in the first half of the session, but it failed to hold the gains and it closed the day 1.71% lower.