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William Mack & Associates

William Mack & Associates Portfolio holdings

AUM $319M Turnover 87.1%
1-Year Est. Return 12.97%
This Fund
S&P 500
This Quarter Est. Return
+1.26%
1 Year Est. Return
+12.97%
3 Year Est. Return
–
5 Year Est. Return
–
10 Year Est. Return
–
AUM
$319M
AUM Growth
+$35.5M
Cap. Flow
+$34.1M
Cap. Flow %
10.69%
Top 10 Hldgs %
71.1%
Holding
876
New
762
Increased
54
Reduced
35
Closed
1
Avg Time Held
0.1 years
Top 10 Avg Time Held
1.5 years
Top 20 Avg Time Held
1.3 years

Sector Composition

Rank Sector Weight
1 Miscellaneous 83.12%
2 Technology 7.92%
3 Communication Services 1.98%
4 Consumer Discretionary 1.88%
5 Financials 1.24%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow Held Since
USAU icon
876
US Gold Corp
USAU
$178M
– –
-90,000
Closed – –

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William Mack & Associates's Q3 2026 Portfolio in Review

As of Q3 2026, William Mack & Associates held 876 positions worth $319M, up 13% from $284M the previous quarter. Its ten largest holdings account for 71% of the portfolio.

William Mack & Associates deployed $34.1M of net new capital in Q3 2026, opening 762 new positions and adding to 54 existing holdings. Its largest new stake was ExxonMobil: 3,890 shares worth $633K.

By sector, the portfolio is most concentrated in Miscellaneous at 83% of assets, down from 86% a quarter earlier, followed by Technology and Communication Services.

On the sell side, the largest reduction was State Street SPDR Bloomberg Convertible Securities ETF, an estimated $1.83M trimmed.

  • William Mack & Associates's largest Q3 2026 buy was ExxonMobil: 3,890 shares worth $633K.
  • William Mack & Associates added most to Vanguard FTSE Developed Markets ETF in Q3 2026, an estimated $4.89M increase.
  • William Mack & Associates's biggest Q3 2026 reduction was State Street SPDR Bloomberg Convertible Securities ETF, cutting an estimated $1.83M.
  • William Mack & Associates fully exited US Gold Corp in Q3 2026, selling an estimated $0.
  • William Mack & Associates's ten largest holdings make up 71% of its $319M portfolio in Q3 2026.
  • William Mack & Associates opened 762 new positions and closed 1 in Q3 2026.
  • William Mack & Associates's portfolio value rose 13% quarter-over-quarter to $319M.

Based on William Mack & Associates's 13F filing for Q3 2026, filed 27 Oct 2026.