Main Management LLC

CIK

1583092

Location

SAN FRANCISCO, CA

Portfolio Value

Small $297,453,033

Diversification

Highly concentrated

Filing Date

Global Rank

#3,645 / 8,517 ▲ 199

3Y Alpha vs SPY

+0.9%

Period ended 46 days ago

Filed Aug 14, 2026 · 1d

26 quarters · since Mar 2020

Clone Performance

Aug 2023–Aug 2026 · vs SPY

Hypothetical growth of buying every stock this filer reported holding, rebalancing on each filing and indexed to the same start. Option positions cannot be bought this way and are left out.

Cloned portfolio

+79.3%

SPY

+75.3%

Annualised alpha

+0.9%

Max drawdown

−19.4%

Estimate. 13F holdings are quarter-lagged, so the clone rebalances about 45 days after each period end — when the filing becomes public — and it excludes option and short positions. Returns use comparable raw closes and exclude dividends; a captured split can shorten the simulated window. It tracks 100% of reported value on average across 13 quarters. Past performance does not predict future results.

Portfolio Concentration

11 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026

Top Position

59.9%

−0.5 pts

Top 5

99.1%

+0.1 pts

Top 10

100.0%

+0.0 pts

HHI

4,116

Highly concentrated−11

Portfolio Trend

26 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026

Sector	% Portfolio	Value	Positions
Unclassified	100.0%	$297,453,033	11

Last Quarter's Activity

Export CSV

Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased

4 positions

Ticker	Company	Δ Shares	Shares	Value
VEU	Vanguard FTSE All-World Ex-US ETF	+3,100	337,364	$28,254,235
VEA	Vanguard FTSE Developed Markets ETF	+530	23,074	$1,644,022
VXUS	Vanguard Total International Stock ETF	+116	82,282	$7,034,288
VIG	Vanguard Dividend Appreciation ETF	+61	894	$211,538
No positions match the current search.

Trimmed

Positions the filer reduced

3 positions

Ticker	Company	Δ Shares	Shares	Value
SPY	Spdr S&P 500 ETF Trust	−2,064	238,454	$178,070,293
XLB	State Street Materials Select Sector SPDR ETF	−626	481,735	$24,486,590
QQQ	Invesco Qqq Trust, Series 1	−2	77,495	$57,067,318
No positions match the current search.

New Positions

Positions the filer opened this quarter

No qualifying positions this quarter.

Sold Out

Positions the filer fully exited

2 positions

Ticker	Company	Shares	Value
BTC	Grayscale Bitcoin Mini Trust ETF	1,729	$51,852
IBB	iShares Biotechnology ETF	300	$50,655
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

11 tracked positions · $297,453,033 total · filing declares 95 positions · $1,488,496 · as of Jun 30, 2026

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
SPY	Spdr S&P 500 ETF Trust	Reduced	238,454	-2,064	$178,070,293	+13.8%	59.87%
QQQ	Invesco Qqq Trust, Series 1	Reduced	77,495	-2	$57,067,318	+27.6%	19.19%
VEU	Vanguard FTSE All-World Ex-US ETF	Added	337,364	+3,100	$28,254,235	+12.6%	9.50%
XLB	State Street Materials Select Sector SPDR ETF	Reduced	481,735	-626	$24,486,590	+1.6%	8.23%
VXUS	Vanguard Total International Stock ETF	Added	82,282	+116	$7,034,288	+11.0%	2.36%
VEA	Vanguard FTSE Developed Markets ETF	Added	23,074	+530	$1,644,022	+13.8%	0.55%
GLD	Spdr Gold Trust	Held	1,166	0	$429,531	−14.4%	0.14%
BIL	State Street SPDR Bloomberg 1-3 Month T-Bill ETF	Held	2,379	0	$218,011	0.0%	0.07%
VIG	Vanguard Dividend Appreciation ETF	Added	894	+61	$211,538	+18.1%	0.07%
IAU	Ishares Gold Trust	Held	250	0	$18,877	−14.4%	0.01%
ASHR	Xtrackers Harvest CSI 300 China A-Shares ETF	Held	500	0	$18,330	+12.3%	0.01%

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.