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Quantum Portfolio Management LLC

Location
New York, NY
Portfolio Value
Small $279,800,733
Diversification
Diversified
Filing Date
Global Rank
#5,424 / 8,794 ▲ 189 · as of Jun 2026
Top Industry
Semiconductors 11.9%
Period ended 3 months ago
Filed Aug 14, 2026 · 52d
11 quarters · since Dec 2023

Clone Performance

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

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Portfolio Concentration

465 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026
Top Position
11.2%
+4.9 pts
Top 5
26.7%
+5.1 pts
Top 10
36.1%
+4.5 pts
HHI
234
Dec 2023 → Jun 2026 · range 112 – 234
Diversified+81

Portfolio Trend

11 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026
Sector % Portfolio Value
Unclassified 30.0% $84,059,114
Technology 24.7% $69,144,055
Industrials 9.0% $25,167,566
Financial Services 7.3% $20,546,388
Communication Services 6.7% $18,610,650
Consumer Cyclical 5.4% $14,992,025
Healthcare 4.6% $12,864,111
Energy 3.8% $10,590,654
Utilities 3.1% $8,717,569
Real Estate 2.1% $5,948,204
Consumer Defensive 1.9% $5,202,809
Basic Materials 1.4% $3,957,588

Last Quarter's Activity

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Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased
25 positions
Ticker Δ Shares Shares Value Open
— +18,708 24,687 $676,670
— +2,335 10,690 $1,124,160
— +1,509 8,429 $1,393,988

Trimmed

Positions the filer reduced
25 positions
Ticker Δ Shares Shares Value Open
— −9,317 14,074 $1,059,068

New Positions

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

Sold Out

Positions the filer fully exited
18 positions
Ticker Shares Value Open

Portfolio Positions

Export CSV View 13F filing
465 tracked positions · $279,800,733 total · filing declares 557 positions · $278,275,854 · as of Jun 30, 2026
Showing 1–50 of 465 positions by value · page 1 of 10
Ticker Company Shares Value (USD) % of Portfolio History
8,429 $1,393,988 0.50%

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.