OAK ASSOCIATES LTD /OH/
SEC Form 13F institutional filer · CIK 0000836372
13F-HR · 87 reported holdings · 2026-03-31
SEC-registered institutional investment manager.
Reported long-US-equity value
$1.36B
Top-10 concentration
50.8%
OAK ASSOCIATES LTD /OH/ — $1.36B AUM allocation strategy
OAK ASSOCIATES LTD /OH/ files SEC Form 13F and reports $1.36B of long US equity value across 87 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 35.1%, followed by Communication Services 14.5% and Financials 10.5%.
The top 10 holdings account for 51% of reported value — a conviction-weighted book concentrated in its best ideas. The sector and industry splits below are of the same reported value. Track quarter-over-quarter adds, trims, new positions and exits below — sourced from SEC 13F filings, public domain.
OAK ASSOCIATES LTD /OH/ — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$1.36B
total across 87 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
51% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$ADBE +44.6K sh · +$2.36M+$NFLX +30K sh · +$3.23M+$ROK +993 sh · −$718K
Biggest trims (shares)
−$ORCL −113K sh · −$24.6M−$GOOGL −88K sh · −$37.1M−$QCOM −27.5K sh · −$11.1M
Exited to nil (held last quarter, gone now)
$EBAY ($18.8M last qtr)$TMO ($2.34M last qtr)$FTNT ($2.06M last qtr)$IQV ($1.68M last qtr)$PANW ($814K last qtr)
Sector allocation (share of reported value)
each slice is a share of the reported long-US-equity value — smaller sectors and the rest of the book roll into “Other holdings”
Qtr shift = share-point change vs the prior quarter's filing — first period tracked for this filer; the column fills in with the next quarterly refresh.
Industry allocation (share of reported value)
- Interactive Media & Services14.5%—
- Semiconductors11.7%—
- Broadline Retail7.9%—
- Semiconductor Materials & Equipment6.6%—
- Communications Equipment5.2%—
- Application Software4.1%—
- Systems Software3.7%—
- Transaction & Payment Processing Services3.6%—
- Other holdings42.6%—
the finer GICS cut of the same book — same denominator — smaller industries roll into “Other holdings”
Qtr shift = share-point change vs the prior quarter's filing — first period tracked for this filer; the column fills in with the next quarterly refresh.
Top S&P 500 holdings
10 of 10 rows · sorted by Value ↓
| Ticker | Holding | Shares | Value | Δ QoQ | Weight |
|---|---|---|---|---|---|
| $AMZN | Amazon.com Inc | 516K | $107M | -9.67K | 7.9% |
| $GOOGL | Alphabet Inc | 351K | $101M | -88K | 7.4% |
| $KLAC | KLA Corporation | 61.3K | $90.3M | -20.6K | 6.6% |
| $AVGO | Broadcom Inc | 235K | $72.9M | -75 | 5.4% |
| $CSCO | Cisco Systems Inc | 920K | $71.3M | -3.67K | 5.2% |
| $META | Meta Platforms Inc | 93.3K | $53.4M | -5.78K | 3.9% |
| $NVDA | NVIDIA Corporation | 304K | $52.9M | -21.1K | 3.9% |
| $MSFT | Microsoft Corporation | 137K | $50.8M | -11.8K | 3.7% |
| $V | Visa Inc | 159K | $48.2M | +290 | 3.5% |
| $GOOG | Alphabet Inc. Class C Capital Stock | 152K | $43.6M | -10.5K | 3.2% |
…and 77 more holdings in the full 13F filing (top positions only shown).
SEC Form 13F data sets · public domain · 45-day filing lag · >$100M AUM managers · as reported
← All 13F filers·← QuantOrb.pro
How to read Δ QoQ — the five insight categories, and the caveats
The categories. Analysts, quants and retail traders look past total portfolio value to isolate actionable signals. Five categories matter.
Conviction & concentration shifts
New positions vs complete exits — a brand-new stock signals high conviction; a full liquidation suggests a broken thesis or tax-loss harvesting. Aggressive sizing — look at share count, not dollars: a 20% share increase during a drawdown is strong dip-buying. Concentration — a narrowing top-5/10 means conviction; spreading capital across more names means hedging.
Sector & macro allocation rotations
Aggregating Δ QoQ moves across sectors shows where smart money is leaning in or sneaking out — rotating out of growth into defensives or energy, for example. The fund's total long equity exposure quarter-over-quarter is a proxy for overall institutional risk appetite.
Crowding & smart-money consensus
When several managers initiate or expand the same stock in the same quarter, that is institutional consensus. Contrarian reads: top pickers buying hard into a beaten-down name the market is selling.
Derivative & option overlays
Reported call/put changes indicate whether managers are adding downside hedges or leveraging upside exposure. Note: a long increase may be half of a market-neutral pair trade.
Who reads this
| Retail "cloners" | High-conviction ideas to replicate ~45 days after quarter-end. |
| Corporate IR | Which funds bought or dumped the stock, before the next call. |
| Quant / algo traders | Cross-sectional factor inputs: flow, momentum, ownership. |
Four caveats before you trade on it
- 45-day lag — holdings are quarter-end; positions may already be closed.
- Long-only — 13Fs miss shorts, pair trades and cash.
- No non-US / fixed income — the picture is US equities plus options.
- Corporate actions — splits and spinoffs distort raw share deltas.
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