Stock market today: Dow, S&P 500, Nasdaq futures slip in wave of earnings as tariffs bite GM profit

US equities saw mixed performance on Tuesday, with the Nasdaq and S&P 500 declining after recent highs, as a wave of earnings reports highlighted ongoing trade war impacts. General Motors' core profit sank 32% due to a $1.1 billion tariff headwind, warning of deeper future hits, while Lockheed Martin also reported a significant profit drop from a $1.6 billion charge, contributing to broader market disappointments. Investors are now assessing the effects of trade policy on corporate results and are keenly awaiting second-quarter earnings from 'Magnificent Seven' tech firms and further developments in trade negotiations.

Analysis

US equity markets exhibited a clear divergence as the technology-centric Nasdaq Composite fell 0.9% from its record high, while the Dow Jones Industrial Average posted a modest gain. The pullback was driven by a wave of mixed corporate earnings that underscored the tangible impacts of trade policy. General Motors provided a stark example, with its stock falling after reporting a 32% decline in core profit, attributing a $1.1 billion hit directly to tariffs and warning of a more significant impact in the upcoming quarter. This sentiment was echoed across other sectors, with Lockheed Martin's stock dropping 6% following a $1.6 billion pre-tax charge and chipmaker NXP's shares declining nearly 6% on a weak forward-looking revenue forecast. Even a headline earnings beat from Coca-Cola failed to support its stock, which fell as investors focused on a decline in overall case volumes, signaling heightened scrutiny of underlying fundamentals. The market's focus now shifts to upcoming results from Alphabet and Tesla, which are seen as a critical test for justifying the high valuations in large-cap tech and the substance of the AI narrative, all under the shadow of faltering US trade negotiations with the EU and India ahead of an August 1 tariff deadline.

Key Decisions for Investors

• Re-evaluate exposure to companies with significant supply chain vulnerabilities to tariffs, particularly in the automotive and industrial sectors, given General Motors' explicit $1.1 billion profit impact and warning of accelerating headwinds.
• Consider taking a cautious stance on the high-valuation technology sector pending earnings from Alphabet and Tesla, as the market seeks concrete validation of AI-related growth to sustain current price levels.
• Look beyond headline earnings-per-share beats and scrutinize underlying operational metrics, such as Coca-Cola's case volume decline, as investors are punishing even minor signs of fundamental weakness.
• Monitor the status of US trade negotiations with the EU and India as the August 1 tariff deadline approaches, as a lack of progress represents a significant catalyst for increased market volatility.