Nasdaq rises 1.09% while Shanghai Composite and Hang Seng close lower: how the measurement windows differ

Both U.S. indexes rise, with Nasdaq posting the larger gain

On November 6, the latest completed trading day, the Nasdaq Composite rose 1.09% from its November 5 close, while the S&P 500 gained 0.31%. Both indexes use the same close-to-close comparison window, confirming that Nasdaq posted the larger gain in this edition. Index changes alone cannot establish which sectors or how many stocks participated in the advance.

Sources: [2] [1]

Shanghai Composite and Hang Seng close lower, moving in the opposite direction to U.S. indexes

On November 6, the Shanghai Composite fell 1.10% from its November 5 close, and the Hang Seng Index declined 1.27%, moving in the opposite direction to the two U.S. indexes covered in this edition. However, Shanghai, Hong Kong, and U.S. markets close at different times: the same trading-day label does not mean identical start and end times. These results support describing differences in direction over each market's trading day, but cannot establish synchronized cross-market co-movement.

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

Bitcoin edges lower and Ethereum edges higher within the cryptocurrency window

Within the UTC calendar-day window from November 6 at 00:00 to November 7 at 00:00, Bitcoin fell 0.26% and Ethereum rose 0.03%. This corresponds to November 6 at 08:00 through November 7 at 08:00 in Singapore time, with the two cryptocurrencies moving in different directions. This measurement window also differs from the equity markets' close-to-close comparison windows, so all these moves should not be combined and interpreted as market reactions over the same period.

Sources: [5] [6]

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What to watch next

• Whether the Nasdaq Composite's gain remains larger than the S&P 500's on the next completed trading day.
• Whether the Shanghai Composite and Hang Seng Index continue to move in the opposite direction to the two U.S. indexes within their respective subsequent close-to-close windows.
• Whether Bitcoin and Ethereum move in the same direction during the next equivalent UTC calendar-day window.
• Whether valid records for the CSI 300 and Hang Seng TECH Index, once available, can add comparisons within the A-share and Hong Kong markets.