Nasdaq Rises 1.18% as Shanghai Composite and Hang Seng Fall: October 27 Closing Directions Diverge

Nasdaq and S&P 500 Both Rise, with Nasdaq Posting the Larger Gain

Over the full October 27 US trading session, the Nasdaq Composite rose 1.18% and the S&P 500 gained 0.60%, both measured against their October 26 closes. The data in this edition confirm that both indexes rose and that the Nasdaq gained more. However, without contribution data for individual stocks or sectors, these figures cannot establish which companies drove the gains.

Sources: [2] [1]

Shanghai Composite and Hang Seng Close Lower; Cross-Market Comparisons Must Account for Timing Differences

On October 27, the Shanghai Composite fell 1.33% from its October 26 close, while the Hang Seng Index declined 0.73%, moving in the opposite direction to the two US indexes covered in this edition. All four indexes use their respective markets' close-to-close measurement windows. However, the windows for the Shanghai Composite, Hang Seng and US indexes ended at 15:00 on October 27, 16:00 on October 27 and 04:00 on October 28, respectively, in Singapore time. This compares direction across their respective trading sessions; it cannot establish that the markets moved in tandem at the same time.

Sources: [3] [4] [2] [1]

NVIDIA Announcements Cover Computing Capacity Expansion and Model Collaboration

Official announcement summaries indicate that NVIDIA and Oracle plan to expand OCI Superclusters to multi-gigawatt scale using NVIDIA Vera Rubin NVL72 systems. NVIDIA and Meta plan to expand their collaboration on Muse and its family of models to improve inference and training performance. These summaries substantiate the collaboration plans themselves, but are not sufficient to establish implementation progress, financial impact or contributions to index movements.

Sources: [5] [6]

Related news and discussion

• NVIDIA and Oracle Expand NVIDIA Vera Rubin to Multi-Gigawatt Scale and Bring NVIDIA Vera CPU to Oracle Cloud Infrastructure

  An official announcement summary states that NVIDIA and Oracle plan to expand OCI Superclusters to multi-gigawatt scale using NVIDIA Vera Rubin NVL72 systems to support demand for AI training, inference and agent applications.

  2026-10-28 00:00 (UTC+8) Read the source

• NVIDIA and Meta to Expand Collaboration on Muse and Muse Family of Models Amid Robust Growth

  An official announcement summary states that NVIDIA and Meta plan to expand their collaboration on Muse and its family of models to improve inference and training performance.

  2026-10-27 13:52 (UTC+8) Read the source

What to watch next

• Whether the Nasdaq and S&P 500 continue to move in the same direction over subsequent full trading sessions. Whether the Nasdaq continues to post the larger gain.
• Whether the Shanghai Composite and Hang Seng continue to close in the same direction. Whether their divergence in direction from the US indexes persists.
• Whether NVIDIA and Oracle or Meta announce implementation timelines, deployment progress or performance validation results for their collaborations.
• Whether valid closing records become available for the CSI 300 and Hang Seng TECH Index. Whether updated Bitcoin and Ethereum data with clearly defined comparison windows become available.