DOSSIER · 13F-HR · Q2 2026

Japan Post Holdings Co., Ltd.

$6.0B in tracked AUM across 1 positions as of Q2 2026.

JP
CIK 0001783464 · last filed Jun 30, 2026
Total AUM
$6.0B
as of Q2 2026
Holdings
1
positions
Whale Score
83
83
strong
Activity
no data
changes this Q
AI Analysis · Q2 2026

Portfolio Overview

Japan Post Holdings Co., Ltd.’s SEC 13F filing for the period ending December 31, 2025, reveals a portfolio of extreme concentration with a total market value of approximately $5.77 billion. The portfolio consists of a single holding, representing a 100% allocation to one asset. This structure indicates a lack of traditional diversification, as the firm’s entire US equity exposure is tied to the performance of a single security. Compared to the previous report dated Septe...

Key Holdings

The sole holding in the portfolio is Aflac Incorporated (AFL), a prominent financial services company specializing in supplemental insurance. The position consists of 52.30 million shares, valued at $5.77 billion. Given that this represents 100% of the portfolio, the performance of Japan Post Holdings' US equity investments is entirely correlated with the market movements of Aflac. A stake of this magnitude—over 52 million shares—typically indicates a significant strategic relationship rather than a passive market investment, suggesting that Japan Post Holdings views Aflac as a core long-term asset.

Quarter at a glance — Q2 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q2 2026.

#HoldingValueSharesWeight
01
AFL
Aflac Inc.
$6.0B50.9M100.0%

Filing history

2026Q2Jun 30
$6.0B 4.7%
1 positionsView →
2026Q1Mar 31
$5.7B 1.1%
1 positionsView →
2025Q4Dec 31
$5.8B 1.3%
1 positionsView →
2025Q3Sep 30
$5.8B 5.9%
1 positionsView →
2025Q2Jun 30
$5.5B 5.2%
1 positionsLocked
2025Q1Mar 31
$5.8B 7.5%
1 positionsLocked
2024Q4Dec 31
$5.4B 7.5%
1 positionsLocked
2024Q3Sep 30
$5.8B 25.2%
1 positionsLocked
2024Q2Jun 30
$4.7B 4.0%
1 positionsLocked
2024Q1Mar 31
$4.5B 4.1%
1 positionsLocked
2023Q4Dec 31
$4.3B 7.5%
1 positionsLocked
2023Q3Sep 30
$4.0B 10.0%
1 positionsLocked
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