The Dow Jones Industrial Average fell 146.10 points, or 0.28%, to 51,717.59 after the market opened.

Market open snapshot

The decline was recorded shortly after trading commenced, with the index shedding ground from its prior close. The move placed the Dow Jones at 51,717.59, reflecting early session downward pressure.

US equities traded higher on Tuesday, with the Dow Jones Industrial Average gaining over 100 points. The index rose 0.24% to 52,171.55, while the Nasdaq Composite climbed 0.39% to 27,228.76. The S&P 500 also advanced, adding 0.18% to reach 7,778.83.

AutoZone earnings beat estimates

AutoZone Inc (NYSE: AZO) reported fourth-quarter results that exceeded analyst expectations for earnings per share. The auto parts retailer posted $56.05 per share, surpassing the consensus estimate of $53.98. However, revenue of $6.595 billion fell short of Wall Street projections of $6.681 billion, despite a 5.6% year-over-year increase.

Sector performance and movers

Communication services led sector gains, jumping 1.1%, while energy stocks lagged, falling 1.3%. Several small-cap stocks saw significant volatility based on corporate announcements.

Top gainers:

• Lianhe Sowell International Group Ltd (NASDAQ: LHSW) shares rose 159% to $1.12 after announcing a strategic cooperation agreement with Kumquat Technology.
• Decoy Therapeutics Inc (NASDAQ: DCOY) surged 135% to $6.02 following a refined corporate strategy announcement regarding its D-MAVs.
• Quanome Technologies, Inc (NASDAQ: QNME) gained 97% to $1.26 after entering a purchase agreement with Compal Electronics for GPU server units.

Top decliners:

• Hub Cyber Security Ltd (NASDAQ: HUBC) dropped 36% to $3.86, reversing Monday's 30% gain.
• Compass Therapeutics Inc. (NASDAQ: CMPX) fell 30% to $1.28 after FDA recommendations regarding a survival benefit trial for tovecimig.
• Black Titan Corp (NASDAQ: BTTC) declined 25% to $0.60, giving back part of its previous day's rally.

Global markets and commodities

European indices closed higher, with Spain’s IBEX 35 rising 0.9% and Germany’s DAX gaining 0.7%. The Eurozone’s STOXX 600 climbed 0.5%. In Asia, markets were mixed; Hong Kong’s Hang Seng index rose 0.18%, while India’s BSE Sensex fell 0.44%.

Commodity prices showed mixed movement. Oil traded down 2.4% to $93.51, and gold slipped 0.2% to $4,373.70. Silver edged down 0.1% to $66.370, whereas copper rose 1.3% to $6.8480.

What the numbers show

AutoZone’s results highlight a divergence between profitability and top-line growth expectations. While the company delivered strong operational efficiency to beat EPS estimates by $2.07, the revenue miss suggests demand or pricing pressures may have constrained sales volume relative to forecasts. This pattern indicates that margin expansion, rather than revenue acceleration, drove the positive earnings surprise.