Jon Najarian Sees Unusual Option Activity In Walmart And PagSeguro Digital

On CNBC's "Fast Money Halftime Report," Jon Najarian gave some unusual option activity plays.

Najarian sees unusual activity:

• Walmart (NYSE:WMT) May 141 calls
• PagSeguro Digital (NYSE:PAGS) Jan $47.50 calls

He will hold his Walmart position for approximately two to three weeks and will hold his PagSeguro Digital position for three to six months.