Q2 2026 13F · SEC CIK 1926253

Keystone Investors Pte Ltd

Hedge fundFiled 2026-08-14 for Q2 2026. Open the filing ↗ · All SEC filings ↗

Reported 13F value: $1.9B
Reported positions: 84
Top holdings a year, 3 yrs: +41.9%
Average holding period: 3 qtrs

Keystone Investors Pte Ltd is a hedge fund that reported 84 positions worth $1.9B in its Q2 2026 13F, filed 2026-08-14. Its largest holdings were Western Digital Corp Com (WDC, 10.1%), Seagate Technology Hldngs Pl (STX, 9.7%), Amazon Com Inc (AMZN, 7.5%). A portfolio copying its top holdings returned 41.9% a year over the last 3 years, against 20.4% for the S&P 500.

Keystone Investors Pte Ltd holdings largest 50 of 84 positions.

Weights are shares of the filer's total reported 13F value, compared with Q4 2025. Share changes may reflect splits; weight changes also reflect price moves. A 13F shows long US-listed positions only, up to 135 days after the fact.

Keystone Investors Pte Ltd 13F holdings
Stock	% of 13F value	Q4 2025	Shares	Share change	Reported value
WDCWestern Digital Corp Com	10.1%	3.1%	294,247	+49.2%	$187.9M
STXSeagate Technology Hldngs Pl	9.7%	1.7%	188,590	+169.2%	$182.0M
AMZNAmazon Com Inc	7.5%	6.7%	585,950	+81.3%	$139.7M
GOOGAlphabet Inc	7.3%	13.5%	387,306	-19.3%	$136.8M
COHRCoherent Corp	4.5%	3.4%	213,960	+3.5%	$84.4M
LITELumentum Hldgs Inc	4.1%	3.6%	88,526	-19.6%	$76.0M
CRCLCircle Internet Group Inc	4.0%	—	1,198,332	—	$75.1M
FROFrontline PLC	3.5%	—	1,873,983	—	$65.2M
MRVLMarvell Technology Inc	3.4%	—	213,933	—	$63.7M
STMStmicroelectronics N V Ny Registry	2.9%	—	724,339	—	$54.2M
VSHVishay Intertechnology Inc	2.7%	—	933,378	—	$50.2M
MSFTMicrosoft Corp	2.6%	4.1%	131,550	+38.2%	$49.1M
MOG-AMoog Inc	2.2%	—	98,035	—	$41.6M
ROSTRoss Stores Inc	1.8%	0.5%	156,440	+391.9%	$33.3M
AMDAdvanced Micro Devices Inc	1.7%	—	53,442	—	$31.0M
IBKRInteractive Brokers Group in	1.4%	—	296,158	—	$25.8M
NVDANvidia Corporation	1.4%	9.1%	127,660	-76.4%	$25.5M
TEAMAtlassian Corporation	1.3%	—	322,711	—	$25.1M
MARMarriott Intl Inc New	1.3%	—	66,264	—	$24.6M
COSTCostco Wholesale Corporation	1.2%	—	23,840	—	$22.3M
SESea Ltd	1.1%	7.5%	211,123	-67.8%	$20.2M
BABAAlibaba Group Hldg Ltd	1.1%	—	208,861	—	$20.0M
SNOWSnowflake Inc	1.0%	0.8%	76,613	+83.0%	$19.5M
CRSCarpenter Technology Corp	1.0%	0.3%	31,165	+247.3%	$19.2M
DDOGDatadog Inc	1.0%	—	72,044	—	$18.8M
OKTAOkta Inc	1.0%	—	131,984	—	$18.0M
ATIAti Inc	1.0%	0.3%	90,612	+171.2%	$17.9M
RBLXRoblox Corp	0.9%	—	305,322	—	$16.6M
SGMLSigma Lithium Corp US	0.9%	—	1,303,675	—	$16.5M
FIXComfort Sys USA Inc	0.9%	—	8,302	—	$16.5M
VRTVertiv Holdings Co	0.8%	—	45,965	—	$15.4M
LYVLive Nation Entertainment in	0.8%	—	78,485	—	$14.4M
BNTXBiontech SE	0.8%	—	153,466	—	$14.3M
BROSDutch Bros Inc Class A	0.8%	—	197,848	—	$14.2M
RCLRoyal Caribbean Group	0.7%	—	41,404	—	$13.1M
STNGScorpio Tankers Inc	0.7%	—	185,840	—	$12.9M
BWXTBwx Technologies Inc	0.7%	0.3%	64,766	+278.7%	$12.6M
FFord Mtr Co	0.6%	—	870,379	—	$12.1M
ASAmer Sports Inc	0.6%	—	343,802	—	$11.6M
GILDGilead Sciences Inc	0.5%	2.3%	75,116	-63.8%	$9.5M
MODModine Manufacturing Co	0.5%	—	35,054	—	$9.4M
FWONKLiberty Media Corp Del	0.5%	—	97,094	—	$9.2M
CBRSCerebras Systems Inc	0.5%	—	38,711	—	$8.6M
FTAIFtai Aviation Ltd	0.4%	—	29,355	—	$7.9M
ARWRArrowhead Pharmaceuticals in	0.4%	0.3%	94,661	+63.5%	$7.7M
HOODRobinhood Mkts Inc	0.4%	—	76,100	—	$7.6M
JNJJohnson & Johnson	0.4%	—	29,987	—	$7.6M
CATCaterpillar Inc	0.4%	—	6,659	—	$7.1M
HHyatt Hotels Corp	0.3%	0.5%	32,620	+3.2%	$6.3M
ORCLOracle Corp	0.3%	—	41,603	—	$6.1M

What Keystone Investors Pte Ltd bought and sold in Q2 2026, against Q4 2025.

New positions

Q4 2025's filing was too long to tell new positions apart.

Share counts compared with the Q4 2025 13F; a split also changes share counts. The latest filing lists more than 50 positions, so a position that left the top 50 may still be held.

How the holdings did against the S&P 500.

1 year: +39.9% /yr; S&P 500 +20.1%
3 years: +41.9% /yr; S&P 500 +20.4%
5 years: —

A portfolio of the filer's 20 largest 13F positions, weighted by value, bought the trading day after each 13F was filed and held until the next one was: what copying this filer could have earned. 13Fs show long US-listed positions only, so this is an estimate of the stock picks, not the fund's reported returns.

Reported 13F value by quarter.

13F value by quarter
Quarter	13F value	Positions
Q2 2026	$1.9B	84
Q4 2025	$1.1B	77
Q3 2025	$865.1M	68
Q2 2025	$484.5M	48
Q1 2025	$711.7M	51
Q4 2024	$1.4B	77
Q3 2024	$1.4B	67
Q2 2024	$1.2B	61
Q1 2024	$1.2B	73
Q4 2023	$1.2B	49
Q3 2023	$840.5M	38
Q2 2023	$576.4M	36

Questions about Keystone Investors Pte Ltd's portfolio

What stocks does Keystone Investors Pte Ltd own?

Keystone Investors Pte Ltd's latest 13F, for Q2 2026 and filed Aug 14, 2026, lists 84 positions worth $1.9B. The largest are Western Digital Corp Com (WDC) at 10.1%, Seagate Technology Hldngs Pl (STX) at 9.7%, Amazon Com Inc (AMZN) at 7.5%, Alphabet Inc (GOOG) at 7.3% and Coherent Corp (COHR) at 4.5%.

What did Keystone Investors Pte Ltd buy last quarter?

In Q2 2026, Keystone Investors Pte Ltd added Ross Stores Inc (ROST) (+391.9% shares), Bwx Technologies Inc (BWXT) (+278.7% shares) and Carpenter Technology Corp (CRS) (+247.3% shares), compared with its Q4 2025 filing.

What did Keystone Investors Pte Ltd sell last quarter?

In Q2 2026, Keystone Investors Pte Ltd cut from its top 50 Vaneck ETF Trust (GDX), cut from its top 50 Iqvia Hldgs Inc (IQV), cut from its top 50 Argan Inc (AGX), cut from its top 50 Tesla Inc (TSLA), cut from its top 50 Ulta Beauty Inc (ULTA), Nvidia Corporation (NVDA) (-76.4% shares), Sea Ltd (SE) (-67.8% shares) and Gilead Sciences Inc (GILD) (-63.8% shares), compared with its Q4 2025 filing.

How has Keystone Investors Pte Ltd's portfolio performed?

A portfolio copying Keystone Investors Pte Ltd's 20 largest 13F holdings each quarter, from the day each filing was public, returned +41.9% a year over the last 3 years, against +20.4% for the S&P 500. Over 1 year: +39.9% against +20.1%.

When is Keystone Investors Pte Ltd's next 13F filing due?

13F filings are due 45 days after each quarter ends. Keystone Investors Pte Ltd's filing for the quarter ending Sep 30, 2026 is due by Nov 14, 2026; this page updates the day after it is published.