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Sector classification change log

Have company reclassifications affected my sector research results?

Sectors and market breadth SEC-046 Table Sample

Sample data. Every number, symbol and holding on these pages is generated sample data dated 2026-10-16, used only to illustrate layout and method for educational and informational purposes. It is not market data, backtest output or a forecast, and the analytics described in the specifications are not running.

Download CSV Sample JSON Specification JSON Sample as of

0700.HK Tencent Holdings | Hang Seng Index | 2025-10-16 – 2026-10-16 | HKD

Highest item: Classification added
73 companies
Lowest item: Sector changed
25 companies
Average
48 companies
Number of items
4 items

Old vs. new classification

Companies reclassified (companies) (Table)

Affected weight

Affected market-cap weight (%) (Bar)

Snapshots and change verification

Share of Companies reclassified (companies) (Donut)

Sample data rows

Classification change snapshotsCompanies reclassified (companies)Affected market-cap weight (%)Data date (sample)
Sector changed 25 23.9 2026-10-16
Sub-industry changed 68 11.4 2026-10-16
Classification added 73 5.6 2026-10-16
Classification missing 27 15.4 2026-10-16