High-rolling investors have positioned themselves bullish on Mastercard (NYSE:MA), 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 MA often signals that someone has privileged information.

Today, Benzinga's options scanner spotted 21 options trades for Mastercard. This is not a typical pattern.

The sentiment among these major traders is split, with 85% bullish and 14% bearish. Among all the options we identified, there was one put, amounting to $32,130, and 20 calls...