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OAK ASSOCIATES LTD /OH/

Registered adviser
Location
AKRON, OH
Portfolio Value
Mid $1,818,799,907
Diversification
Diversified
Filing Date
Global Rank
#1,638 / 8,807 ▼ 51
Top Industry
Semiconductors 16.2%
Period ended 4 months ago
Filed Aug 14, 2026 · 2mo
26 quarters · since Mar 2020

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, Oct 1, 2026
Form ADV adviser
CRD 108874
Roster of Oct 1, 2026
Regulatory AUM
$1,776,200,000
Main clients
Registered funds and BDCs (84% of AUM)
Registered funds advised
7 series (0 index, 0 ETFs)
$1,375,532,383 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 Oct 2026 $1,776,200,000 Registered funds and BDCs (84%)
Apr 2025 to Mar 2026 $1,665,000,000 Registered funds and BDCs (81%)
Apr 2024 to Mar 2025 $1,500,665,103 Registered funds and BDCs (81%)
May 2023 to Mar 2024 $1,341,000,000 Registered funds and BDCs (76%)
Apr 2023 $1,341,000,000 Registered funds and BDCs (76%)
Apr 2022 to Mar 2023 $2,067,000,000 Registered funds and BDCs (75%)
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
Diversified active
Top 10 weight 51.9%, 25.6 effective positions, active share 61.0% against the Nasdaq-100 as of 2026-06-30; it meets none of the index-like, systematic-like or concentrated tests
Turnover
Low turnover
11.7% over the last four quarters (under 30%)
Horizon
Long horizon
Value-weighted holding period 21.6 quarters (12+), a floor since 71.4% of the book was already held when coverage starts

Closest benchmark: the Nasdaq-100 as of 2026-06-30, active share 61.0%; sector active share 28.8% against the combined 13F book's sector weights.

Over time 26 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

139 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026
Top Position
9.8%
+0.2 pts
Top 5
36.2%
+3.8 pts
Top 10
51.9%
+3.1 pts
HHI
391
Sep 2023 → Jun 2026 · range 325 – 392
Diversified+48

Portfolio Trend

26 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026
Sector % Portfolio Value
Technology 51.8% $942,150,837
Communication Services 12.9% $234,371,299
Financial Services 11.3% $205,452,139
Healthcare 10.6% $192,260,083
Consumer Cyclical 8.8% $159,402,279
Industrials 3.0% $54,433,158
Energy 1.1% $20,818,921
Basic Materials 0.4% $6,942,505
Unclassified 0.1% $2,515,682
Consumer Defensive 0.0% $453,004

Last Quarter's Activity

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Jun 30, 2026 vs Mar 31, 2026

Added To

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

Trimmed

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

New Positions

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

Sold Out

Positions the filer fully exited
9 positions
Ticker Shares Value Open
— 65,000 $0

Portfolio Positions

Export CSV View 13F filing
139 tracked positions · $1,818,799,907 total · filing declares 139 positions · $1,787,638,586 · as of Jun 30, 2026
Showing 1–50 of 139 positions by value · page 1 of 3
Ticker Company Shares Value (USD) % of Portfolio History

Showing the top 50 of 139 positions. Create a free account to see every position, past quarters, search, filters and CSV export.

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.