Deep-pocketed investors have adopted a bullish approach towards UnitedHealth Group (NYSE:UNH), and it's something market players shouldn't ignore. Our tracking of public options records at Benzinga unveiled this significant move today. The identity of these investors remains unknown, but such a substantial move in UNH usually suggests something big is about to happen.

We gleaned this information from our observations today when Benzinga's options scanner highlighted 31 extraordinary options activities for UnitedHealth Group. This level of activity is out of the ordinary.

The general mood among these heavyweight investors is divided, with 45% leaning bullish and 29% bearish...