The large bearish position on Marvell Tech indicates that big-money traders expect the stock price to decline in the short term. With 57% of these traders showing bearish sentiment and whales targeting a price range of $37.5 to $60.0, it is likely that the stock price will be negatively impacted in the short term. Additionally, Oppenheimer's downgrade to Outperform with a price target of $70 may also contribute to the bearish sentiment.