Q3 2026 13F · SEC CIK 2043084

Mainstream Capital Management LLC

Wealth managerFiled 2026-10-23 for Q3 2026. Open the filing ↗ · All SEC filings ↗

Reported 13F value: $169.9M
Reported positions: 302
Holdings vs S&P 500, 3 yrs: —
Assets under management: $224.0M

Mainstream Capital Management LLC is a wealth manager that reported 302 positions worth $169.9M in its Q3 2026 13F, filed 2026-10-23. Its largest holdings were J P Morgan Exchange Traded F (JPST, 10.0%), Apple Inc (AAPL, 6.6%), Goldman Sachs ETF Tr (GSST, 5.6%).

Mainstream Capital Management LLC holdings largest 50 of 302 positions.

Weights are shares of the filer's total reported 13F value, compared with Q2 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.

Mainstream Capital Management LLC 13F holdings
Stock	% of 13F value	Q2 2026	Shares	Share change	Reported value
JPSTJ P Morgan Exchange Traded F	10.0%	12.2%	336,297	-16.4%	$16.9M
AAPLApple Inc	6.6%	5.9%	33,675	-1.3%	$11.2M
GSSTGoldman Sachs ETF Tr	5.6%	5.7%	189,302	+1.0%	$9.6M
AMZNAmazon Com Inc	4.5%	4.4%	30,737	-0.7%	$7.7M
NVDANvidia Corporation	4.1%	3.3%	30,526	+10.5%	$7.0M
GOOGAlphabet Inc	3.9%	4.3%	19,504	-3.5%	$6.6M
METAMeta Platforms Inc	3.2%	2.5%	7,555	+0.7%	$5.5M
CRWDCrowdstrike Hldgs Inc	2.2%	1.6%	14,033	+305.8%	$3.7M
MSFTMicrosoft Corp	2.1%	1.2%	7,075	+31.1%	$3.6M
IVVIshares Tr	1.8%	2.0%	4,023	-7.3%	$3.1M
PANWPalo Alto Networks Inc	1.8%	1.6%	7,570	-1.9%	$3.0M
GOOGLAlphabet Inc	1.8%	1.9%	8,712	-1.4%	$3.0M
IWFIshares Tr	1.7%	2.6%	22,805	-33.4%	$2.9M
JPMJpmorgan Chase & Co	1.7%	1.7%	8,515	-2.6%	$2.8M
BRK-BBerkshire Hathaway Inc Del	1.6%	1.6%	5,386	-0.3%	$2.7M
LLYEli Lilly & Co	1.6%	1.6%	2,278	+1.2%	$2.6M
GLWCorning Inc	1.4%	2.2%	15,593	+9.1%	$2.4M
AMDAdvanced Micro Devices Inc	1.4%	1.4%	3,900	-3.2%	$2.4M
SPYState Str Spdr S&p 500 ETF T	1.3%	1.6%	2,989	-13.9%	$2.3M
IWDIshares Tr	1.3%	2.1%	9,119	-37.5%	$2.3M
QUALIshares Tr	1.3%	1.1%	10,148	+23.5%	$2.3M
COSTCostco Wholesale Corporation	1.3%	1.3%	2,347	+1.0%	$2.1M
TSLATesla Inc	1.2%	1.5%	5,947	-0.6%	$2.1M
CRXPColumbia Core Plus Bond ETF	1.2%	—	110,289	—	$2.1M
IBKRInteractive Brokers Group in	1.1%	1.1%	22,789	+4.0%	$1.9M
EFVIshares Tr	1.1%	0.9%	23,023	+24.1%	$1.8M
GLDSpdr Gold Tr	1.0%	1.2%	4,582	-18.0%	$1.7M
IVWIshares Tr	1.0%	0.6%	11,950	+73.9%	$1.7M
TJXTjx Cos Inc New	1.0%	1.1%	12,616	+2.2%	$1.7M
GSGoldman Sachs Group Inc	1.0%	1.2%	1,851	-2.1%	$1.7M
NFLXNetflix Inc.	1.0%	1.0%	23,379	+1.5%	$1.6M
GEVGe Vernova Inc	1.0%	1.1%	1,705	+5.3%	$1.6M
TOSTToast Inc	0.9%	1.0%	52,988	-6.7%	$1.5M
ETNEaton Corp PLC	0.9%	0.9%	3,544	+2.5%	$1.5M
IEMGIshares Inc	0.9%	0.6%	18,214	+55.1%	$1.5M
SCHWCharles Schwab Corp (the)	0.9%	0.9%	14,829	-7.5%	$1.4M
VGTVanguard World Fd	0.8%	1.2%	11,483	-28.7%	$1.4M
IBMInternational Business Machs	0.8%	1.1%	6,528	-1.6%	$1.4M
DYNFBlackrock ETF Trust	0.8%	—	18,405	—	$1.3M
VOTVanguard Index Fds	0.7%	1.1%	4,315	-25.1%	$1.3M
VOEVanguard Index Fds	0.7%	1.1%	6,334	-29.9%	$1.2M
WMTWalmart Inc	0.7%	0.9%	11,643	-10.0%	$1.2M
CAVACava Group Inc	0.7%	1.0%	21,612	+1.1%	$1.2M
ORLYOreilly Automotive Inc	0.7%	0.7%	13,301	+5.9%	$1.1M
VVisa Inc	0.7%	0.7%	3,140	-2.2%	$1.1M
LZLegalzoom.com Inc	0.7%	0.7%	200,000	+0.0%	$1.1M
IVEIshares Tr	0.6%	—	4,483	—	$1.0M
AVGOBroadcom Inc	0.6%	0.6%	2,781	-1.6%	$977K
EFGIshares Tr	0.6%	0.7%	7,916	-19.5%	$949K
IYWIshares Tr	0.6%	0.7%	3,558	-21.2%	$943K

What Mainstream Capital Management LLC bought and sold in Q3 2026, against Q2 2026.

New positions

Q2 2026's filing was too long to tell new positions apart.

Added to

CRWD Crowdstrike Hldgs Inc+305.8% shares
IVW Ishares Tr+73.9% shares
IEMG Ishares Inc+55.1% shares
MSFT Microsoft Corp+31.1% shares
EFV Ishares Tr+24.1% shares
QUAL Ishares Tr+23.5% shares
NVDA Nvidia Corporation+10.5% shares
GLW Corning Inc+9.1% shares

Reduced

IWD Ishares Tr-37.5% shares
IWF Ishares Tr-33.4% shares
VOE Vanguard Index Fds-29.9% shares
VGT Vanguard World Fd-28.7% shares
VOT Vanguard Index Fds-25.1% shares
IYW Ishares Tr-21.2% shares
EFG Ishares Tr-19.5% shares
GLD Spdr Gold Tr-18.0% shares

Left the top 50

Share counts compared with the Q2 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: +2.8% /yr; S&P 500 +11.7%
3 years: —
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
Q3 2026	$169.9M	302
Q2 2026	$166.1M	90
Q1 2026	$149.1M	88
Q4 2025	$152.8M	88
Q3 2025	$150.4M	87
Q2 2025	$137.5M	84
Q1 2025	$126.2M	86
Q4 2024	$142.6M	322
Q3 2024	$117.6M	84

Questions about Mainstream Capital Management LLC's portfolio

What stocks does Mainstream Capital Management LLC own?

Mainstream Capital Management LLC's latest 13F, for Q3 2026 and filed Oct 23, 2026, lists 302 positions worth $169.9M. The largest are J P Morgan Exchange Traded F (JPST) at 10.0%, Apple Inc (AAPL) at 6.6%, Goldman Sachs ETF Tr (GSST) at 5.6%, Amazon Com Inc (AMZN) at 4.5% and Nvidia Corporation (NVDA) at 4.1%.

What did Mainstream Capital Management LLC buy last quarter?

In Q3 2026, Mainstream Capital Management LLC added Crowdstrike Hldgs Inc (CRWD) (+305.8% shares), Ishares Tr (IVW) (+73.9% shares) and Ishares Inc (IEMG) (+55.1% shares), compared with its Q2 2026 filing.

What did Mainstream Capital Management LLC sell last quarter?

In Q3 2026, Mainstream Capital Management LLC cut from its top 50 Dover Corp (DOV), cut from its top 50 Applied Matls Inc (AMAT), cut from its top 50 Chevron Corporation (CVX), Ishares Tr (IWD) (-37.5% shares), Ishares Tr (IWF) (-33.4% shares) and Vanguard Index Fds (VOE) (-29.9% shares), compared with its Q2 2026 filing.

When is Mainstream Capital Management LLC's next 13F filing due?

13F filings are due 45 days after each quarter ends. Mainstream Capital Management LLC's filing for the quarter ending Dec 31, 2026 is due by Feb 14, 2027; this page updates the day after it is published.

How much money does Mainstream Capital Management LLC manage?

Mainstream Capital Management LLC reported $224.0M of regulatory assets under management on its latest SEC Form ADV. Its 13F, which covers only US-listed stocks and options, totals $169.9M.