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Mason & Associates, LLC

Location
NEWPORT NEWS, VA
Portfolio Value
Small $708,114,040
Diversification
Highly concentrated
Filing Date
Global Rank
#3,800 / 8,811 ▲ 1084 · as of Jun 2026
Top Industry
Consumer Electronics 30.9%
Period ended 21 days ago
Filed Oct 20, 2026 · 1d
11 quarters · since Mar 2024

Regulatory profile

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

Holder type
Unknown

Portfolio style

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

Style
Concentrated
The top 10 positions are 98.0% of the book (60%+)
Turnover
Low turnover
7.3% over the last four quarters (under 30%)
Horizon
Medium horizon
Value-weighted holding period 8.4 quarters (4 to under 12)

Closest benchmark: every 13F filer's combined book, active share 94.8%; sector active share 89.1% against the combined 13F book's sector weights.

Over time 10 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

46 tracked positions · as of Sep 30, 2026 · Δ vs Jun 30, 2026
Top Position
55.6%
+15.7 pts
Top 5
94.9%
+2.4 pts
Top 10
98.8%
+0.8 pts
HHI
3,744
Mar 2024 → Sep 2026 · range 355 – 6,101
Highly concentrated+784

Portfolio Trend

11 quarters · across all stocks

Sector Breakdown

As of Sep 30, 2026
Sector % Portfolio Value
Unclassified 98.9% $700,148,243
Technology 0.4% $2,897,002
Utilities 0.3% $2,190,933
Financial Services 0.1% $1,025,933
Industrials 0.1% $1,019,744
Consumer Cyclical 0.1% $380,820
Energy 0.0% $233,058
Healthcare 0.0% $218,307

Last Quarter's Activity

Export CSV
Sep 30, 2026 vs Jun 30, 2026

Added To

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

Trimmed

Positions the filer reduced
11 positions
Ticker Δ Shares Shares Value Open
— −107 6,826 $0
— −65 2,610 $0

New Positions

Positions the filer opened this quarter
3 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
46 tracked positions · $708,114,040 total · filing declares 46 positions · $710,486,463 · as of Sep 30, 2026
Ticker Company Shares Value (USD) % of Portfolio History
2,610 $0 0.00%
6,826 $0 0.00%

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.