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Sentiment aggregation robustness comparison

Does a single extreme news article dominate average sentiment?

News and sentiment NEW-048 Multi-series 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: Median
0.24
Lowest item: De-duplicated mean
-0.29
Average
0.08
Number of items
4 items

Main chart: sentiment score by aggregation method (-1 to 1), ordered by aggregation method

Sentiment score by aggregation method (-1 to 1) (Multi-series)

Supporting chart: median and difference before vs after de-duplication

Median and difference before vs after de-duplication (Bar)

Detail: data rows, observation dates and missing-value status for the sentiment aggregation robustness comparison

Sentiment score by aggregation method (-1 to 1) and Median and difference before vs after de-duplication (Table)

Sample data rows

Aggregation methodSentiment score by aggregation method (-1 to 1)Median and difference before vs after de-duplicationData date (sample)
Data provider value 0.21 125 2026-10-16
De-duplicated mean -0.29 117 2026-10-16
Median 0.24 8 2026-10-16
Trimmed mean 0.14 7 2026-10-16