Whale Monthly Trading Patterns: Seasonal NZX Analysis

Q: Which month has the most whale buying activity?

May sees the most substantial shareholder buying with 37 entries totaling $7984.2M across 20 different stocks.

Q: Which month has the most whale selling activity?

May has the highest selling activity with 36 exits totaling $9775.5M across 22 stocks.

Q: Are there seasonal patterns in whale trading on NZX?

Yes. Analysis of 333 trades shows distinct monthly patterns. May and April are peak buying months, while May and June see heaviest selling.

Q: How many stocks are tracked in this analysis?

We track 69 NZX stocks with substantial shareholder activity, analyzing 333 total entry and exit transactions to identify monthly patterns.

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Monthly Trading Patterns

When do whales buy and sell? Discover seasonal patterns across all NZX stocks and identify the most active trading months.

Peak Buying Month

May

37 whale entries

20 different stocks

$7984.2M total value

595.1M shares

Peak Selling Month

May

36 whale exits

22 different stocks

$9775.5M total value

613.4M shares

Months Ranked by Buying Activity

Aggregate whale entry activity by month (all stocks)

Rank	Month	Entries	Stocks	Value
1	May🏆	37	20	$7984.2M
2	April	35	26	$3135.8M
3	July	22	16	$2661.6M
4	October	25	18	$2050.7M
5	June	36	16	$1999.8M
6	August	18	14	$1479.7M
7

Most Common Trading Months by Stock

For each stock, which month sees the most whale entry and exit activity?

Stock	Company	FY End	Most Common Buy Month	Most Common Sell Month	Total Trades
GTK	Gentrack Group Limited	Sep	June	February	34
SKT	Sky Network Television Limited	Jun	March	March	34
ATM	The a2 Milk Company Limited	Jun	September	December	32
IFT

Methodology

This analysis tracks when substantial shareholders (5%+ voting rights) enter and exit positions:

Entry Month: Month of first substantial disclosure (whale buying)
Exit Month: Month of last disclosure below 5% threshold (whale selling)
Value: Calculated as shares × entry/exit price
Most Common Month: The single month with highest activity for each stock

Note: Based on 333 whale positions across 69 NZX stocks. Updates automatically as new substantial shareholder disclosures are processed.

Disclaimer

Data sourced from NZX disclosures. Our datasets may not be complete and we are continuously updating and adding more data to the platform.

This analysis is provided for informational and educational purposes only. Nothing on this page constitutes financial, investment, legal, or tax advice. Always conduct your own research and consult with qualified professionals before making any investment decisions.

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Data sourced from publicly available NZX disclosures. Our datasets may not be complete. Automated analysis can produce errors. If you believe any data on this page is incorrect, please contact us at hello@nzxplorer.co.nz. Past performance does not indicate future results. For informational purposes only. Not investment advice.

Months Ranked by Selling Activity

Aggregate whale exit activity by month (all stocks)

Rank	Month	Exits	Stocks	Value
1	May🏆	36	22	$9775.5M
2	June	19	16	$9417.0M
3	December	31	16	$2378.2M
4	August	23	17	$2138.5M
5	July	19	12	$1921.5M
6	March	40	23	$1672.0M
7	April	33	19	$1659.0M
8	February	28	17	$1497.4M
9	November	28	20	$1295.7M
10	October	35	21	$860.9M
11	September	31	21	$576.1M
12	January	10	8	$218.0M

Whale Monthly Trading Patterns: Seasonal Analysis | NZX Governance Explorer