High-rolling investors have positioned themselves bearish on Cisco Systems (NASDAQ:CSCO), and it's important for retail traders to take note.This activity came to our attention today through Benzinga's tracking of publicly available options data. The identities of these investors are uncertain, but such a significant move in CSCO often signals that someone has privileged information.

Today, Benzinga's options scanner spotted 19 options trades for Cisco Systems. This is not a typical pattern.

The sentiment among these major traders is split, with 36% bullish and 52% bearish. Among all the options we identified, there was one put, amounting to...