Mainstream Capital Management LLC

CIK

2043084

Location

LOS ANGELES, CA

Portfolio Value

Micro $83,640,181

Diversification

Diversified

Filing Date

Global Rank

#6,060 / 8,605 ▲ 71 · as of Mar 2026

Top Industry

Consumer Electronics 11.6%

3Y Alpha vs SPY

-4.8%

Period ended 3 months ago

Filed Apr 17, 2026 · 3mo

7 quarters · since Sep 2024

Clone Performance

Nov 2024–Jul 2026 · vs SPY

Hypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.

Cloned portfolio

+19.0%

SPY

+28.3%

Annualised alpha

-5.2%

Max drawdown

−22.2%

Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.

Portfolio Concentration

54 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025

Top Position

10.8%

−0.2 pts

Top 5

32.7%

−1.5 pts

Top 10

47.4%

−1.7 pts

HHI

377

Diversified−15

Portfolio Trend

7 quarters · across all stocks

Sector Breakdown

As of Mar 31, 2026

Sector	% Portfolio	Value	Positions
Technology	28.7%	$23,992,705	12
Consumer Cyclical	22.0%	$18,385,400	12
Financial Services	14.3%	$11,973,525	9
Communication Services	11.2%	$9,376,792	4
Unclassified	6.8%	$5,686,471	5
Industrials	6.6%	$5,522,808	6
Consumer Defensive	5.6%	$4,646,995	3
Healthcare	2.5%	$2,108,112	1
Energy	1.3%	$1,056,845	1
Utilities	1.1%	$890,528	1

Last Quarter's Activity

Export CSV

Mar 31, 2026 vs Dec 31, 2025

Added To

Positions the filer increased

25 positions

Ticker	Company	Δ Shares	Shares	Value
WMT	Walmart Inc.	+826	13,142	$1,633,287
CAVA	Cava Group, Inc.	+535	21,324	$1,725,111
GS	Goldman Sachs Group Inc	+390	1,897	$1,604,843
PLTR	Palantir Technologies Inc.	+317	1,880	$275,006
IBKR	Interactive Brokers Group, Inc.	+262	21,814	$1,463,064
ETN	Eaton Corp plc	+232	3,430	$1,226,808
AS	Amer Sports, Inc.	+162	23,133	$761,538
TJX	Tjx Companies Inc /De/	+136	12,307	$1,965,427
JPM	Jpmorgan Chase & Co	+114	8,755	$2,575,370
ORLY	O Reilly Automotive Inc	+109	12,630	$1,165,875
TSLA	Tesla, Inc.	+102	5,990	$2,226,782
BABA	Alibaba Group Holding Ltd	+93	8,597	$1,078,579
NVDA	Nvidia Corp	+86	27,741	$4,838,030
MSFT	Microsoft Corp	+84	5,393	$1,996,326
SCHW	Schwab Charles Corp	+75	16,693	$1,568,808
CEG	Constellation Energy Corp	+45	3,189	$890,528
BA	Boeing Co	+40	1,918	$381,739
PANW	Palo Alto Networks Inc	+38	7,741	$1,241,037
DOV	DOVER Corp	+36	5,634	$1,174,407
CRWD	CrowdStrike Holdings, Inc.	+30	3,470	$338,680
GLW	Corning Inc /Ny	+24	14,181	$1,928,190
NFLX	Netflix Inc	+15	23,016	$2,212,988
GLD	Spdr Gold Trust	+12	6,185	$2,661,343
BRK-B	Berkshire Hathaway Inc	+6	5,396	$2,585,763
LLY	ELI LILLY & Co	+6	2,292	$2,108,112
No positions match the current search.

Trimmed

Positions the filer reduced

13 positions

Ticker	Company	Δ Shares	Shares	Value
AMZN	Amazon Com Inc	−468	31,153	$6,488,235
CMG	Chipotle Mexican Grill Inc	−451	27,485	$879,794
UBER	Uber Technologies, Inc	−342	11,121	$799,933
HD	Home Depot, Inc.	−255	3,496	$1,149,799
GOOGL	Alphabet Inc.	−250	9,060	$2,605,293
AAPL	Apple Inc.	−186	35,554	$9,023,249
AVGO	Broadcom Inc.	−72	2,855	$883,651
DIS	Walt Disney Co	−70	2,390	$230,348
AMAT	Applied Materials Inc /De	−50	1,468	$501,747
V	Visa Inc.	−18	3,331	$1,006,761
META	Meta Platforms, Inc.	−15	7,565	$4,328,163
AXP	American Express Co	−7	1,259	$380,822
QQQ	Invesco Qqq Trust, Series 1	−1	423	$244,147
No positions match the current search.

New Positions

Positions the filer opened this quarter

3 positions

Ticker	Company	Shares	Value
TOST	Toast, Inc.	57,404	$1,521,780
GEV	GE Vernova Inc.	1,394	$1,216,822
ATI	Ati Inc	1,700	$247,282
No positions match the current search.

Sold Out

Positions the filer fully exited

5 positions

Ticker	Company	Shares	Value
CRM	Salesforce, Inc.	6,042	$1,600,586
BXP	BXP, Inc.	12,418	$837,966
NKE	NIKE, Inc.	3,859	$245,856
GBTC	Grayscale Bitcoin Trust ETF	3,538	$241,857
CBRE	Cbre Group, Inc.	1,482	$238,290
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

54 positions · $83,640,181 total · as of Mar 31, 2026

All sectors Communication Services Consumer Cyclical Consumer Defensive Energy Financial Services Healthcare Industrials Technology Utilities

Showing 1–50 of 54 positions by value · page 1 of 2

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
AAPL	Apple Inc. Technology	Reduced	35,554	-186	$9,023,249	−7.1%	10.79%
AMZN	Amazon Com Inc Consumer Cyclical	Reduced	31,153	-468	$6,488,235	−11.1%	7.76%
NVDA	Nvidia Corp Technology	Added	27,741	+86	$4,838,030	−6.2%	5.78%
META	Meta Platforms, Inc. Communication Services	Reduced	7,565	-15	$4,328,163	−13.5%	5.17%
GLD	Spdr Gold Trust	Added	6,185	+12	$2,661,343	+8.8%	3.18%
GOOGL	Alphabet Inc. Communication Services	Reduced	9,060	-250	$2,605,293	−10.6%	3.11%
BRK-B	Berkshire Hathaway Inc Financial Services	Added	5,396	+6	$2,585,763	−4.6%	3.09%
JPM	Jpmorgan Chase & Co Financial Services	Added	8,755	+114	$2,575,370	−7.5%	3.08%
COST	Costco Wholesale Corp /New Consumer Defensive	Added	2,328	+1	$2,319,689	+15.6%	2.77%
SPY	Spdr S&P 500 ETF Trust	Held	3,473	0	$2,258,630	−4.6%	2.70%
TSLA	Tesla, Inc. Consumer Cyclical	Added	5,990	+102	$2,226,782	−15.9%	2.66%
NFLX	Netflix Inc Communication Services	Added	23,016	+15	$2,212,988	+2.6%	2.65%
LLY	ELI LILLY & Co Healthcare	Added	2,292	+6	$2,108,112	−14.2%	2.52%
MSFT	Microsoft Corp Technology	Added	5,393	+84	$1,996,326	−22.2%	2.39%
TJX	Tjx Companies Inc /De/ Consumer Cyclical	Added	12,307	+136	$1,965,427	+5.1%	2.35%
GLW	Corning Inc /Ny Technology	Added	14,181	+24	$1,928,190	+55.6%	2.31%
CAVA	Cava Group, Inc. Consumer Cyclical	Added	21,324	+535	$1,725,111	+41.4%	2.06%
WMT	Walmart Inc. Consumer Defensive	Added	13,142	+826	$1,633,287	+19.0%	1.95%
GS	Goldman Sachs Group Inc Financial Services	Added	1,897	+390	$1,604,843	+21.2%	1.92%
SCHW	Schwab Charles Corp Financial Services	Added	16,693	+75	$1,568,808	−5.5%	1.88%
TOST	Toast, Inc. Technology	NEW	57,404	NEW	$1,521,780	NEW	1.82%
IBKR	Interactive Brokers Group, Inc. Financial Services	Added	21,814	+262	$1,463,064	+5.6%	1.75%
LZ	Legalzoom.Com, Inc. Industrials	Held	225,000	0	$1,275,750	−42.9%	1.53%
PANW	Palo Alto Networks Inc Technology	Added	7,741	+38	$1,241,037	−12.5%	1.48%
ETN	Eaton Corp plc Industrials	Added	3,430	+232	$1,226,808	+20.4%	1.47%
GEV	GE Vernova Inc. Industrials	NEW	1,394	NEW	$1,216,822	NEW	1.45%
DOV	DOVER Corp Industrials	Added	5,634	+36	$1,174,407	+7.5%	1.40%
ORLY	O Reilly Automotive Inc Consumer Cyclical	Added	12,630	+109	$1,165,875	+2.1%	1.39%
HD	Home Depot, Inc. Consumer Cyclical	Reduced	3,496	-255	$1,149,799	−10.9%	1.37%
BABA	Alibaba Group Holding Ltd Consumer Cyclical	Added	8,597	+93	$1,078,579	−13.5%	1.29%
CVX	Chevron Corp Energy	Held	5,108	0	$1,056,845	+35.8%	1.26%
V	Visa Inc. Financial Services	Reduced	3,331	-18	$1,006,761	−14.3%	1.20%
CEG	Constellation Energy Corp Utilities	Added	3,189	+45	$890,528	−19.8%	1.06%
AVGO	Broadcom Inc. Technology	Reduced	2,855	-72	$883,651	−12.8%	1.06%
CMG	Chipotle Mexican Grill Inc Consumer Cyclical	Reduced	27,485	-451	$879,794	−14.9%	1.05%
UBER	Uber Technologies, Inc Technology	Reduced	11,121	-342	$799,933	−14.6%	0.96%
AS	Amer Sports, Inc. Consumer Cyclical	Added	23,133	+162	$761,538	−11.2%	0.91%
HNST	Honest Company, Inc. Consumer Defensive	Held	236,061	0	$694,019	+14.0%	0.83%
AMD	Advanced Micro Devices Inc Technology	Held	3,171	0	$645,076	−5.0%	0.77%
MA	Mastercard Inc Financial Services	Held	1,165	0	$582,103	−12.5%	0.70%
AMAT	Applied Materials Inc /De Technology	Reduced	1,468	-50	$501,747	+28.6%	0.60%
BA	Boeing Co Industrials	Added	1,918	+40	$381,739	−6.4%	0.46%
AXP	American Express Co Financial Services	Reduced	1,259	-7	$380,822	−18.7%	0.46%
MCD	Mcdonalds Corp Consumer Cyclical	Held	1,188	0	$369,218	+1.7%	0.44%
CRWD	CrowdStrike Holdings, Inc. Technology	Added	3,470	+30	$338,680	−16.0%	0.40%
IBIT	iShares Bitcoin Trust ETF	Held	8,284	0	$318,271	−22.6%	0.38%
DRI	Darden Restaurants Inc Consumer Cyclical	Held	1,507	0	$295,432	+6.5%	0.35%
SBUX	Starbucks Corp Consumer Cyclical	Held	3,121	0	$279,610	+6.4%	0.33%
PLTR	Palantir Technologies Inc. Technology	Added	1,880	+317	$275,006	−1.0%	0.33%
ATI	Ati Inc Industrials	NEW	1,700	NEW	$247,282	NEW	0.30%