High-rolling investors have positioned themselves bearish on ON Semiconductor (NASDAQ:ON), 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 ON often signals that someone has privileged information.Today, Benzinga's options scanner spotted 19 options trades for ON Semiconductor. This is not a typical pattern.The sentiment ...