DIAM Co., Ltd.

Long Only Manager

DIAM Co., Ltd. is a Long Only Manager led by Noriyuki Nmn Sugihara, reporting $456.32B in AUM as of Q3 2025 with IVV as the largest holding (6% allocation).

CEONoriyuki Nmn Sugihara

Portfolio Value: $34.5B
Positions: 946
Top Holding: IVV at 6.28%
Last Reported: Q3 2025

AddressTekko Building, 8-2, Marunouchi 1 Chome, Chiyoda-ku, Tokyo, 100-0005, Japan

Top Holdings

Largest long holdings in DIAM Co., Ltd.'s portfolio (34.3% of total portfolio)

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Holding	Sector	Position	Weight	Traded	Ownership	Owned Since
1 iShares Core S&P 500 ETF IVV	ETF ETF	$2.2B	6.28%	+$8.8M Bought	— 3.2M shares	Q4 2016 Held for 8y 11m
2 Nvidia NVDA	Semiconductors Technology	$2.0B	5.91%	+$26.3M Bought	0.04% 10.9M shares	≤ Q2 2013 Held for 12y 5m+
3 Microsoft MSFT	Software - Infrastructure Technology	$1.7B	5.01%	+$18.0M Bought	0.04% 3.3M shares	≤ Q2 2013 Held for 12y 5m+
4 Apple AAPL	Consumer Electronics Technology	$1.7B	4.86%	+$8.2M Bought	0.04% 6.6M shares	≤ Q2 2013 Held for 12y 5m+
5 Amazon AMZN	Specialty Retail Consumer Cyclical	$966.4M	2.80%	+$6.4M Bought	0.04% 4.4M shares	≤ Q2 2013 Held for 12y 5m+
6 Meta Platforms, Inc. META	Internet Content & Information Communication Services	$767.3M	2.22%	+$15.9M Bought	0.04% 1.0M shares	≤ Q2 2013 Held for 12y 5m+
7 Broadcom Inc. AVGO	Semiconductors Technology	$692.4M	2.01%	-$377.7K Sold	0.04% 2.1M shares	≤ Q2 2013 Held for 12y 5m+
8 Alphabet Inc. GOOGL	Internet Content & Information Communication Services	$662.6M	1.92%	+$13.3M Bought	0.02% 2.7M shares	≤ Q2 2013 Held for 12y 5m+
9 Tesla, Inc. TSLA	Auto - Manufacturers Consumer Cyclical	$591.7M	1.71%	+$9.3M Bought	0.04% 1.3M shares	Q3 2013 Held for 12y 2m
10 Alphabet Inc. GOOG	Internet Content & Information Communication Services	$547.4M	1.59%	+$5.3M Bought	0.02% 2.2M shares	Q2 2014 Held for 11y 5m

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Changes

Portfolio activity, position movements, and quarter-over-quarter changes in DIAM Co., Ltd.'s latest filing

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Market Value

$34.5B

Prior: $31.9B

Q/Q Change

+8.21%

+$2.6B

Net Flows % of MV

+0.869%

Turnover Ratio

1.83%

New Purchases

24 stocks

$83.4M

Added To

460 stocks

+$681.9M

Sold Out Of

41 stocks

$80.1M

Reduced Holdings

394 stocks

-$385.2M

Increased Positions

Position	Shares Δ	Change
1 Vanguard Total Bond Market BND	New	0 → 212.8K +$15.8M
2 VTIP Vanguard Short-Term Inflation-Protected Securities Index Fund VTIP	New	0 → 311.6K +$15.8M
3 IAUM iShares Gold Trust Micro IAUM	New	0 → 303.3K +$11.7M
4 Rocket Lab USA, Inc. RKLB	New	0 → 167.3K +$8.0M
5 Vanguard Global ex-U.S. Real Estate VNQI	New	0 → 113.9K +$5.4M

Decreased Positions

Position	Shares Δ	Change
1 Hess HES	Sold	121.3K → 0 −$16.8M
2 Ansys ANSS	Sold	40.2K → 0 −$14.1M
3 iShares U.S. Treasury Bond GOVT	Sold	382.0K → 0 −$8.8M
4 Juniper Networks JNPR	Sold	161.4K → 0 −$6.4M
5 Avantor AVTR	Sold	259.8K → 0 −$3.5M

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Analytics

Portfolio insights and performance metrics for DIAM Co., Ltd.

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Sector Allocation

Technology

28.60%

ETF

11.00%

Financial Services

10.40%

Consumer Cyclical

8.80%

Communication Services

8.30%

Healthcare

7.80%

Industrials

6.90%

Real Estate

6.90%

Consumer Defensive

4.30%

Energy

2.20%

Utilities

2.20%

Basic Materials

1.40%

Market Cap Distribution

Mega Cap (> $200B)

47.60%

Large Cap ($10B - $200B)

37.81%

Mid Cap ($2B - $10B)

1.71%

Small Cap ($300M - $2B)

0.26%

Micro Cap ($50M - $300M)

0.01%

Nano Cap (< $50M)

0.27%

N/A (ETF or Unknown)

12.35%

Portfolio Concentration

Top 10 Holdings %

34.31%

Top 20 Holdings %

43.72%

Top 50 Holdings %

57.68%

Top 100 Holdings %

69.78%