Los mercados bursátiles cerrarán hoy: estado de las operaciones durante el fin de semana

• U.S. stock markets remain closed on Saturday, December 27, 2025, for the Christmas holiday weekend.
• Regular trading hours resume on Monday, December 29 after the weekend closure.
• Thin holiday trading volumes may amplify volatility when markets reopen. according to market analysis
• Markets enter the break riding a five-session winning streak fueled by AI optimism. as reported
• Historical patterns show Santa Claus rallies face amplified risks in low-liquidity periods. based on historical data

U.S. stock exchanges remain shuttered today, December 27, 2025, extending the Christmas holiday closure. This follows Friday's market holiday observing Christmas Day. Trading pauses after a five-day rally driven by AI enthusiasm and Federal Reserve policy expectations. Thin institutional participation during holiday periods creates unique volatility risks. Investors should prepare for potential price swings when normal activity resumes.

Is the Stock Market Open Today?

All major U.S. exchanges are closed Saturday, December 27. Christmas Day fell on Thursday, December 25, triggering a market holiday. Friday, December 26 served as the observed federal holiday with markets likewise closed. Today's closure aligns with regular weekend schedules for NYSE and Nasdaq. Trading will resume under standard hours Monday morning.

Is the Stock Market Open Tomorrow?

Sunday, December 28 will also see closed markets. This maintains the standard non-trading weekend schedule. Investors gain no access until Monday, December 29 at 9:30 AM ET. The New Year's holiday follows next week with an early Wednesday close. Markets will fully shut Thursday, January 1, 2026.

How Could Thin Trading Impact Markets Next Week?

Holiday-weakened liquidity amplifies price movements through structural mechanisms. High-frequency algorithms and 0DTE options dominate during sparse sessions, representing 60% of volume. Hedging requirements can trigger gamma squeezes, causing 2% Nasdaq swings on minor news. Winners like AI-exposed stocks may extend gains through window dressing.

Markets reopen riding momentum from pre-holiday gains. Five consecutive advances were fueled by projected $1 trillion AI infrastructure spending. Banks forecast cumulative AI investments reaching $5 trillion by 2030. The Fed's recent rate cuts supported this rally alongside AI enthusiasm. Historical Santa Claus rallies average 1.3% gains over seven days. Current stretched valuations at 27.73 P/E create vulnerability. Success requires institutional confirmation in January amid expiring tax provisions.