Mainstream Capital Management LLC

CIK 2043084 · View on SEC EDGAR ↗

Portfolio value QoQ: +11.4% 13F does not disclose cash

Top 10 holdings weight45.41%

Top 25 holdings weight67.97%

Positions above 1%33

Effective number of positions28.8

Based on 13F long-equity holdings only (cash, bonds, shorts not disclosed)

Turnover Q2 2026: 2.78% Est. buys $8,871,515 · sells $4,385,294

Median holding: 6.0 quarters Tracked Q1 2025–Q2 2026 · 87.4% still held

New positions4

Increased21

Decreased48

Closed2

Portfolio value $166.1M #7,113 of 9,337 by 13F value · top 76.2%

Positions 90

As of June 30, 2026 Data as of Q2 2026

Sector breakdown

Technology 17.9%

Communication Services 9.9%

Retail 9.4%

Financials 8.7%

Industrials 6.7%

Consumer Discretionary 3.9%

Healthcare 1.6%

Energy 0.5%

Utilities 0.5%

Other/Unmapped 40.9%

Full portfolio 90 positions

					Streak
JPST JPMorgan Ultra-Short Income ETF	$20,340,771	12.25%	402,230	$-527,706	Down ×1
AAPL Apple Inc. - Common Stock	$9,869,780	5.94%	34,109	$846,530	Down ×6
GSST Goldman Sachs ETF Trust	$9,476,592	5.71%	187,377	$576,001	Up ×3
AMZN Amazon.com, Inc. - Common Stock	$7,381,151	4.44%	30,969	$892,916	Down ×3
GOOG Alphabet Inc. - Class C Capital Stock	$7,142,566	4.30%	20,215	$1,337,093	Down ×1
NVDA NVIDIA Corporation - Common Stock	$5,526,686	3.33%	27,621	$688,656	Down ×1
IWF iShares Russell 1000 Growth Fund	$4,254,685	2.56%	34,265	$548,843	Up ×1
META Meta Platforms, Inc. - Class A Common Stock	$4,226,365	2.55%	7,503	$-101,798	Down ×5
GLW Corning Incorporated Common Stock	$3,649,839	2.20%	14,289	$1,721,648	Up ×2
IWD iShares Russell 1000 Value ETF	$3,538,993	2.13%	14,598	$366,848	Down ×6
IVV iShares Trust	$3,250,183	1.96%	4,340	$361,035	Down ×5
GOOGL Alphabet Inc. - Class A Common Stock	$3,159,151	1.90%	8,840	$553,857	Down ×6
JPM JP Morgan Chase & Co. Common Stock	$2,860,210	1.72%	8,738	$284,839	Down ×1
BRK-B (filed as BRKB) Berkshire Hathaway Inc. Class B	$2,702,106	1.63%	5,400	$116,343	Up ×2
LLY Eli Lilly and Company Common Stock	$2,698,718	1.63%	2,250	$590,605	Down ×1
CRWD CrowdStrike Holdings, Inc. - Class A Common Stock	$2,638,938	1.59%	3,458	$1,284,215	Down ×1
PANW Palo Alto Networks, Inc. - Common Stock	$2,630,287	1.58%	7,713	$1,389,250	Down ×1
SPY SPY	$2,593,532	1.56%	3,473	$334,901
TSLA Tesla, Inc. - Common Stock	$2,517,291	1.52%	5,985	$290,508	Down ×1
AMD Advanced Micro Devices, Inc. - Common Stock	$2,341,067	1.41%	4,030	$1,695,990	Up ×1
COST Costco Wholesale Corporation - Common Stock	$2,172,993	1.31%	2,323	$-146,557	Down ×1
GLD SPDR Gold Shares	$2,057,402	1.24%	5,585	$-603,942	Down ×1
MSFT Microsoft Corporation - Common Stock	$2,013,562	1.21%	5,398	$17,235	Up ×2
VGT Vanguard Information Tech ETF	$1,925,109	1.16%	16,107	$518,505	Up ×1
GS Goldman Sachs Group, Inc. (The) Common Stock	$1,911,489	1.15%	1,890	$306,646	Down ×1
IBKR Interactive Brokers Group, Inc. - Class A Common Stock	$1,908,178	1.15%	21,923	$445,113	Up ×5
GEV GE Vernova Inc. Common Stock	$1,902,098	1.15%	1,619	$685,275	Up ×1
TJX TJX Companies, Inc. (The) Common Stock	$1,869,510	1.13%	12,340	$-95,918	Up ×2
IBM International Business Machines Corporation Common Stock	$1,866,391	1.12%	6,637		Up ×1
QUAL iShares Trust	$1,802,617	1.09%	8,215	$222,870	Down ×5
VOE Vanguard Morningstar Mid-Cap Value ETF	$1,784,723	1.07%	9,032	$118,648	Down ×6
VOT Vanguard Morningstar Mid-Cap Growth ETF	$1,765,513	1.06%	5,764	$278,030	Down ×6
CAVA CAVA Group, Inc. Common Stock	$1,677,981	1.01%	21,381	$-47,131	Up ×2
NFLX Netflix, Inc. - Common Stock	$1,644,413	0.99%	23,031	$-568,575	Up ×4
TOST Toast, Inc. Class A Common Stock	$1,580,009	0.95%	56,794	$58,229	Down ×1
SCHW Charles Schwab Corporation (The) Common Stock	$1,479,088	0.89%	16,030	$-89,720	Down ×1
ETN Eaton Corporation, PLC Ordinary Shares	$1,473,949	0.89%	3,459	$247,141	Up ×3
WMT Walmart Inc. - Common Stock	$1,465,471	0.88%	12,939	$-167,817	Down ×1
EFV iShares Trust	$1,419,773	0.85%	18,547	$39,391	Down ×6
DOV Dover Corporation Common Stock	$1,275,705	0.77%	5,688	$101,298	Up ×3
LZ LegalZoom.com, Inc. - Common Stock	$1,226,000	0.74%	200,000	$-49,750	Down ×1
EFG iShares Trust	$1,223,297	0.74%	9,832	$127,193	Down ×5
ORLY O'Reilly Automotive, Inc. - Common Stock	$1,156,282	0.70%	12,556	$-9,593	Down ×1
IYW iShares U.S. Technology ETF	$1,138,818	0.69%	4,515	$315,897	Down ×5
V Visa Inc.	$1,101,319	0.66%	3,210	$94,558	Down ×3
AVGO Broadcom Inc. - Common Stock	$1,067,899	0.64%	2,827	$184,248	Down ×6
AMAT Applied Materials, Inc. - Common Stock	$1,061,364	0.64%	1,468	$559,616
IEMG iShares, Inc.	$972,790	0.59%	11,743	$153,297	Down ×6
IVW iShares S&P 500 Growth ETF	$944,969	0.57%	6,871	$167,225	Down ×1
CVX Chevron Corporation Common Stock	$846,702	0.51%	5,108	$-210,143
BABA Alibaba Group Holding Limited American Depositary Shares each representing eight Ordinary share	$827,828	0.50%	8,625	$-250,752	Up ×5
UBER Uber Technologies, Inc. Common Stock	$797,296	0.48%	11,049	$-2,638	Down ×3
AS Amer Sports, Inc. Ordinary Shares	$787,288	0.47%	23,265	$25,750	Up ×4
CEG Constellation Energy Corporation - Common Stock When-Issued	$777,646	0.47%	3,131	$-112,882	Down ×1
XLK SELECT SECTOR SPDR TRUST	$738,456	0.44%	3,876	$223,336
HD Home Depot, Inc. (The) Common Stock	$726,873	0.44%	2,061	$-422,926	Down ×5
JEPI JPMorgan Equity Premium Income ETF	$619,755	0.37%	10,973	$-448,663	Down ×6
CMG Chipotle Mexican Grill, Inc. Common Stock	$616,522	0.37%	18,133	$-263,273	Down ×3
VOX Vanguard Communication Services ETF	$607,771	0.37%	3,304	$13,580
USMV iShares MSCI USA Min Vol Factor ETF	$542,491	0.33%	5,624	$20,828	Down ×5
VFH Vanguard Financials ETF	$532,322	0.32%	4,045	$43,646
MA Mastercard Incorporated Common Stock	$524,899	0.32%	1,022	$-57,205	Down ×1
EWY iShares MSCI South Korea ETF	$480,118	0.29%	2,378	$187,600
VHT Vanguard Health Care ETF	$477,220	0.29%	1,596	$42,581
RIOT Riot Platforms, Inc. - Common Stock	$456,315	0.27%	16,666	$250,323
SCHO SCHWAB STRATEGIC TRUST	$442,655	0.27%	18,337	$-8,403	Down ×3
IJH iShares Trust	$437,059	0.26%	5,668	$46,465	Down ×6
AXP American Express Company Common Stock	$425,857	0.26%	1,259	$45,035
BA Boeing Company (The) Common Stock	$419,735	0.25%	1,939	$37,995	Up ×2
BSV VANGUARD BOND INDEX FUNDS	$412,767	0.25%	5,298	$-2,649
IFRA iShares U.S. Infrastructure ETF	$397,593	0.24%	6,307	$29,397	Down ×6
DYNF BlackRock ETF Trust	$392,282	0.24%	5,768	$57,805	Up ×1
XLI SELECT SECTOR SPDR TRUST	$391,576	0.24%	2,114	$46,929	Down ×1
SCUS SCHWAB STRATEGIC TRUST	$363,552	0.22%	14,441	$-127,420	Down ×1
SDY SPDR SERIES TRUST	$360,819	0.22%	2,371	$7,644	Down ×3
ATI ATI Inc. Common Stock	$335,070	0.20%	1,700	$87,788
MCD McDonald's Corporation Common Stock	$321,128	0.19%	1,188	$-48,091
SBUX Starbucks Corporation - Common Stock	$318,731	0.19%	3,119	$39,121	Down ×1
IBIT iShares Bitcoin Trust ETF	$316,055	0.19%	9,494	$-2,216	Up ×1
QQQ Invesco QQQ Trust, Series 1	$311,497	0.19%	423	$67,350
DRI Darden Restaurants, Inc. Common Stock	$310,457	0.19%	1,507	$15,025
EMXC iShares MSCI Emerging Markets ex China ETF	$267,105	0.16%	2,611	$61,724
XLP XLP	$266,904	0.16%	3,213	$-48,801	Down ×1
CSCO Cisco Systems, Inc. - Common Stock	$262,713	0.16%	2,237		Up ×1
IVE iShares Trust	$260,892	0.16%	1,149	$19,548	Up ×1
PLTR Palantir Technologies Inc. - Class A Common Stock	$224,706	0.14%	1,926	$-50,300	Up ×2
SCHD SCHWAB STRATEGIC TRUST	$210,840	0.13%	6,649	$6,849
FNDX SCHWAB STRATEGIC TRUST	$207,188	0.12%	6,662
IBB iShares Trust	$204,644	0.12%	1,076		Up ×1
ETHA iShares Ethereum Trust ETF	$152,775	0.09%	12,849	$-51,305	Down ×1
No matches

Conviction holdings

Positions increased for 3+ consecutive quarters.

Share counts are as reported in 13F filings (not split-adjusted)

Security	Value	% of portfolio	Streak
GSST	$9,476,592	5.71%	up ×3
IBKR	$1,908,178	1.15%	up ×5
NFLX	$1,644,413	0.99%	up ×4
ETN	$1,473,949	0.89%	up ×3
DOV	$1,275,705	0.77%	up ×3
BABA	$827,828	0.50%	up ×5
AS	$787,288	0.47%	up ×4

Biggest new bets

New positions opened this quarter, largest first.

Security	Value	Shares	% of portfolio
IBM	$1,866,391	6,637	1.12%
CSCO	$262,713	2,237	0.16%
FNDX	$207,188	6,662	0.12%
IBB	$204,644	1,076	0.12%

Top movers (QoQ)

Security	Action	Shares Δ	Value Δ
GLW	Bought more	+108	+$1.7M
AMD	Bought more	+859	+$1.7M
PANW	Trimmed	-28	+$1.4M
GOOG	Trimmed	-23	+$1.3M
CRWD	Trimmed	-12	+$1.3M
AMZN	Trimmed	-184	+$893K
AAPL	Trimmed	-1K	+$847K
NVDA	Trimmed	-120	+$689K
GEV	Bought more	+225	+$685K
GLD	Trimmed	-600	-$604K

Exited positions

Includes corporate events (mergers, delistings) — not all exits are sells

Closed positions reflect 13F reporting changes; for index managers these are often mechanical (delisting, M&A, index rebalancing), not active decisions.

Security	Quarter	Shares before	Value before	Price since exit
CRM	March 31, 2026	6,042	$1,600,586	24.0%
UNH	Sept. 30, 2025	3,235	$1,009,223	7.2%
IJR	June 30, 2025	8,212	$858,729	26.5%
BXP	March 31, 2026	12,418	$837,967	15.5%
T	Dec. 31, 2025	24,988	$705,661	-2.2%
HNST	June 30, 2026	236,061	$694,019	41.3%
BXSL	Sept. 30, 2025	16,459	$506,114	-9.1%
SKX	June 30, 2025	6,350	$360,553	No longer tracked
NKE	March 31, 2026	3,859	$245,857	-37.5%
GBTC	March 31, 2026	3,538	$241,858	27.0%
CBRE	March 31, 2026	1,482	$238,291	-4.6%
SCHD	Sept. 30, 2025	8,785	$232,803	21.6%
DIS	June 30, 2026	2,390	$230,348	6.3%
PINS	Dec. 31, 2025	7,000	$225,190	-23.4%
FNDX	June 30, 2025	9,372	$221,273	30.4%