Deep-pocketed investors have adopted a bullish approach towards Union Pacific (NYSE:UNP), 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 UNP usually suggests something big is about to happen.

We gleaned this information from our observations today when Benzinga's options scanner highlighted 8 extraordinary options activities for Union Pacific. This level of activity is out of the ordinary.

The general mood among these heavyweight investors is divided, with 50% leaning bullish and 50% bearish...