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Main Management Fund Advisors LLC

Registered adviser
Location
SAN FRANCISCO, CA
Portfolio Value
Mid $1,414,100,565
Diversification
Highly concentrated
Filing Date
Global Rank
#2,029 / 8,827 ▲ 1243
Top Industry
Asset Management 100.0%
Period ended 4 months ago
Filed Aug 14, 2026 · 3mo
22 quarters · since Mar 2021

Regulatory profile

From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.

Holder type
Registered adviser
Form ADV roster, Nov 1, 2026
Form ADV adviser
CRD 281689
Roster of Nov 1, 2026
Regulatory AUM
$1,011,255,965
Main clients
Registered funds and BDCs (100% of AUM)
Registered funds advised
1 series (0 index, 1 ETF)
$692,078,121 net assets· N-CEN Oct 31, 2025
Form ADV history
Monthly rosters from Dec 2019; each row is a run with the same figures, newest first.
Rosters Regulatory AUM Main clients
Apr 2026 to Nov 2026 $1,011,255,965 Registered funds and BDCs (100%)
Apr 2025 to Mar 2026 $582,146,050 Registered funds and BDCs (100%)
Apr 2024 to Mar 2025 $370,451,185 Registered funds and BDCs (100%)
May 2023 to Mar 2024 $161,964,799 Registered funds and BDCs (100%)
Apr 2023 $161,964,799 Registered funds and BDCs (100%)
Apr 2022 to Mar 2023 $135,015,222 Registered funds and BDCs (100%)
3 earlier changes not shown.

Portfolio style

Measured from the filed 13F common-share book for Jun 30, 2026, never from the firm's own description.

Style
Concentrated
The top 10 positions are 100.0% of the book (60%+)
Turnover
High turnover
112.7% over the last four quarters (100%+)
Horizon
Short horizon
Value-weighted holding period 2.6 quarters (under 4)

Closest benchmark: every 13F filer's combined book, active share 94.8%; sector active share 75.9% against the combined 13F book's sector weights.

Over time 22 measured quarters

How the bands are measured

Style bands measure the filed 13F common-share book each closed quarter, tested in this order. Unknown: under $10,000,000 of valued equity or 5 stocks. Index-like (100+ stocks): active share of 20% or less against the closest benchmark, which is the S&P 500, S&P MidCap 400, S&P SmallCap 600, Russell 1000, Russell 2000, Nasdaq-100 or Dow Jones Industrial Average (weighted by an index-tracking fund's reported holdings or the index's constituents nearest the quarter end, over the names resolved to companies, and only when those are 90%+ of its weight) or every 13F filer's combined book, or index series holding 80%+ of the registered fund assets it advises (N-CEN) and equal to 50%+ of its book. Systematic-like: 500+ stocks, 100%+ annual turnover and a top 10 weight of 25% or less. Concentrated: a top 10 weight of 60%+ or 12 or fewer effective positions. Diversified active: none of these. Turnover is the smaller of buys and sells over average equity value, summed over four quarters: low under 30%, high 100%+. Horizon is the value-weighted number of quarters each position has been held: short under 4, long 12+.

Clone Performance

Build a hypothetical price-return history from this filer's public 13F holdings.

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Portfolio Concentration

8 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026
Top Position
36.8%
−39.1 pts
Top 5
100.0%
0.0 pts
Top 10
100.0%
0.0 pts
HHI
2,579
Sep 2023 → Jun 2026 · range 2,360 – 6,330
Highly concentrated−3,751

Portfolio Trend

22 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026
Sector % Portfolio Value
Unclassified 79.8% $1,128,333,141
Financial Services 20.2% $285,767,424

Last Quarter's Activity

Export CSV
Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased
1 positions
Ticker Δ Shares Shares Value Open

Trimmed

Positions the filer reduced
3 positions
Ticker Δ Shares Shares Value Open

New Positions

Positions the filer opened this quarter
4 positions
Ticker Shares Value Open

Sold Out

Positions the filer fully exited
2 positions
Ticker Shares Value Open

Portfolio Positions

Export CSV View 13F filing
8 tracked positions · $1,414,100,565 total · filing declares 8 positions · $1,414,100 · as of Jun 30, 2026
Ticker Company Shares Value (USD) % of Portfolio History

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.