Overnight earnings gap distribution

How large an opening gap do earnings releases typically cause?

Earnings and expectations ERN-019 Histogram 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.

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

Highest item: 3% to 10%
27 %
Lowest item: Below -10%
7.7 %
Average
20 %
Number of items
5 items

Main chart: share of opening gap events (%), arranged by gap size bin

Share of opening gap events (%) (Histogram)

Supporting chart: median gap up / gap down

Median gap up / gap down (Bar)

Detail: data rows, observation dates and missing-value status for the overnight earnings gap distribution

Share of opening gap events (%) and Median gap up / gap down (Table)

Sample data rows

Gap size binsShare of opening gap events (%)Median gap up / gap downData date (sample)
Below -10% 7.7 82 2026-10-16
-10% to -3% 25.8 53 2026-10-16
-3% to 3% 24.1 41 2026-10-16
3% to 10% 27 59 2026-10-16
Above 10% 15.4 17 2026-10-16