US stock futures have dropped significantly as the market starts the week, with Dow futures down by over 300 points amid ongoing concerns regarding Trump tariffs and upcoming earnings reports from major tech companies, including Tesla and Alphabet. Analysts indicate that the lack of progress on trade deals is influencing investor sentiment, causing a broad retreat from riskier assets. The Dow, Nasdaq, and S&P 500 have all been marked for lower openings, reflecting a challenging environment for equities as investors prepare for a crucial week filled with earnings announcements amidst persistent trade uncertainties.