Q2 2026 13F · SEC CIK 2003672

Quantum Portfolio Management LLC

Institutional asset managerFiled 2026-08-14 for Q2 2026. Open the filing ↗ · All SEC filings ↗

Reported 13F value: $278.3M
Reported positions: 522
Top holdings a year, 3 yrs: +15.1%
Assets under management: $339.6M

Quantum Portfolio Management LLC is an institutional asset manager that reported 522 positions worth $278.3M in its Q2 2026 13F, filed 2026-08-14. Its largest holdings were Apple Inc (AAPL, 5.2%), Nvidia Corporation (NVDA, 3.5%), Ishares Tr (EEM, 2.4%). A portfolio copying its top holdings returned 15.1% a year over the last 3 years, against 17.1% for the S&P 500.

Quantum Portfolio Management LLC holdings largest 50 of 522 positions.

Weights are shares of the filer's total reported 13F value, compared with Q1 2026. 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.

Quantum Portfolio Management LLC 13F holdings
Stock	% of 13F value	Q1 2026	Shares	Share change	Reported value
AAPLApple Inc	5.2%	5.6%	50,394	-0.1%	$14.6M
NVDANvidia Corporation	3.5%	3.7%	48,191	-0.4%	$9.6M
EEMIshares Tr	2.4%	2.5%	97,269	-4.0%	$6.7M
FTRBFederated Hermes ETF Trust	1.9%	2.3%	211,261	+1.1%	$5.3M
GOOGAlphabet Inc	1.8%	1.8%	14,288	-0.1%	$5.0M
MUMicron Technology Inc	1.8%	0.8%	4,284	-17.3%	$4.9M
EFVIshares Tr	1.8%	2.5%	64,031	-15.9%	$4.9M
AGXArgan Inc	1.7%	1.8%	5,756	-22.9%	$4.6M
FNDESchwab Strategic Tr	1.5%	1.5%	108,584	+22.0%	$4.3M
IWOIshares Tr	1.5%	1.6%	10,574	-9.5%	$4.2M
IWFIshares Tr	1.5%	1.6%	32,702	+278.4%	$4.1M
IVWIshares Tr	1.4%	1.5%	29,223	-1.0%	$4.0M
GOOGLAlphabet Inc	1.4%	1.4%	10,895	+1.0%	$3.9M
LRCXLam Research Corp	1.4%	0.8%	8,926	+0.7%	$3.9M
MSFTMicrosoft Corp	1.3%	1.6%	9,590	-5.6%	$3.6M
AMZNAmazon Com Inc	1.2%	1.3%	14,464	+1.2%	$3.4M
IVLUIshares Tr	1.2%	1.4%	80,106	-3.1%	$3.4M
FNDFSchwab Strategic Tr	1.2%	1.1%	61,082	+21.1%	$3.2M
IWDIshares Tr	1.1%	1.2%	12,660	-1.1%	$3.1M
AVGOBroadcom Inc	1.1%	1.1%	7,919	-4.3%	$3.0M
VWOVanguard Intl Equity Index F	1.0%	0.9%	47,458	+29.5%	$2.8M
SCHVSchwab Strategic Tr	0.9%	1.0%	71,423	-6.4%	$2.5M
ROKURoku Inc	0.9%	—	17,292	—	$2.4M
CHRDChord Energy Corporation	0.8%	—	19,876	—	$2.3M
TSMTaiwan Semiconductor Manufac	0.8%	0.7%	4,733	-6.0%	$2.3M
METAMeta Platforms Inc	0.8%	1.0%	3,849	-6.4%	$2.2M
IDVIshares Tr	0.8%	0.7%	52,099	+29.0%	$2.2M
FYCFirst Tr Exchange-Traded Alp	0.7%	0.6%	16,142	+23.0%	$2.1M
HPEHewlett Packard Enterprise C	0.7%	—	42,055	—	$1.9M
TIGOMillicom Intl Cellular S A	0.7%	0.6%	20,504	+5.1%	$1.9M
DEMWisdomtree Tr	0.6%	0.7%	32,581	+4.8%	$1.8M
STXSeagate Technology Hldngs Pl	0.6%	—	1,781	—	$1.7M
MLPXGlobal X Fds	0.6%	0.7%	23,181	+1.1%	$1.7M
WMBWilliams Cos	0.6%	0.7%	22,783	+1.4%	$1.7M
VRTVertiv Holdings Co	0.6%	0.6%	4,955	-4.8%	$1.7M
JNKSpdr Series Trust	0.6%	0.7%	16,883	+3.2%	$1.6M
MCKMckesson Corp	0.6%	0.8%	2,151	-1.0%	$1.6M
ASMLAsml Hldg NV	0.6%	—	814	—	$1.6M
APHAmphenol Corp	0.6%	0.5%	9,155	+0.7%	$1.6M
DGXQuest Diagnostics Inc	0.6%	0.6%	7,451	+0.2%	$1.6M
QQQInvesco Qqq Tr	0.5%	—	2,069	—	$1.5M
TPXSomnigroup International Inc	0.5%	0.6%	19,063	-1.5%	$1.5M
TTWOTake-Two Interactive Softwar	0.5%	0.5%	5,612	-0.9%	$1.4M
COSTCostco Wholesale Corporation	0.5%	0.6%	1,493	+0.6%	$1.4M
PLTRPalantir Technologies Inc	0.5%	0.7%	11,961	+2.6%	$1.4M
QTUMETF Ser Solutions	0.5%	—	8,429	—	$1.4M
TERTeradyne Inc	0.5%	—	2,865	—	$1.4M
FIVEFive Below Inc	0.5%	0.8%	7,483	-1.4%	$1.3M
MTZMasTec Inc	0.5%	—	3,231	—	$1.3M
LHLabcorp Holdings Inc	0.5%	0.5%	4,631	+0.1%	$1.3M

What Quantum Portfolio Management LLC bought and sold in Q2 2026, against Q1 2026.

New positions

Q1 2026's filing was too long to tell new positions apart.

Share counts compared with the Q1 2026 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: +6.0% /yr; S&P 500 +11.7%
3 years: +15.1% /yr; S&P 500 +17.1%
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	$278.3M	522
Q1 2026	$229.6M	254
Q4 2025	$226.4M	238
Q3 2025	$336.5M	262
Q2 2025	$209.6M	232
Q1 2025	$197.2M	273
Q4 2024	$186.3M	251
Q3 2024	$184.6M	236
Q2 2024	$174.2M	244
Q1 2024	$175.8M	244
Q4 2023	$158.7M	236

Questions about Quantum Portfolio Management LLC's portfolio

What stocks does Quantum Portfolio Management LLC own?

Quantum Portfolio Management LLC's latest 13F, for Q2 2026 and filed Aug 14, 2026, lists 522 positions worth $278.3M. The largest are Apple Inc (AAPL) at 5.2%, Nvidia Corporation (NVDA) at 3.5%, Ishares Tr (EEM) at 2.4%, Federated Hermes ETF Trust (FTRB) at 1.9% and Alphabet Inc (GOOG) at 1.8%.

What did Quantum Portfolio Management LLC buy last quarter?

In Q2 2026, Quantum Portfolio Management LLC added Ishares Tr (IWF) (+278.4% shares), Vanguard Intl Equity Index F (VWO) (+29.5% shares) and Ishares Tr (IDV) (+29.0% shares), compared with its Q1 2026 filing.

What did Quantum Portfolio Management LLC sell last quarter?

In Q2 2026, Quantum Portfolio Management LLC cut from its top 50 Vanguard Long-Term Corporate Bond ETF (VCLT), cut from its top 50 Amcor PLC (AMCR), cut from its top 50 Netflix Inc. (NFLX), cut from its top 50 Ishares Inc (BKF), cut from its top 50 Dover Corp (DOV), Argan Inc (AGX) (-22.9% shares), Micron Technology Inc (MU) (-17.3% shares) and Ishares Tr (EFV) (-15.9% shares), compared with its Q1 2026 filing.

How has Quantum Portfolio Management LLC's portfolio performed?

A portfolio copying Quantum Portfolio Management LLC's 20 largest 13F holdings each quarter, from the day each filing was public, returned +15.1% a year over the last 3 years, against +17.1% for the S&P 500. Over 1 year: +6.0% against +11.7%.

When is Quantum Portfolio Management LLC's next 13F filing due?

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

How much money does Quantum Portfolio Management LLC manage?

Quantum Portfolio Management LLC reported $339.6M of regulatory assets under management on its latest SEC Form ADV. Its 13F, which covers only US-listed stocks and options, totals $278.3M.