13F
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OAK ASSOCIATES LTD /OH/

13F equity value
$1.5B
Positions
140
Top 10 concentration
46.5%
Quarters / total new picks
29 / 146
13F equity value over time
$0M$939M$2B2017201820192020202120222023202420252026

"13F equity value" = market value of this filer's US-listed long equity positions only. It excludes cash, bonds, non-US and short positions, so it understates a fund's true assets under management — often by a lot.

Not significant Verdict

13F holdings are disclosed ~45 days after quarter-end, and they never reveal when within the quarter a fund actually bought. So any 13F-based summary is structurally late and blurred — this applies to every fund, including this one.

We backtested copying it anyway. Buying this fund's new positions the day each filing went public, over 29 quarters, returned +2.8% per quarter — versus +2.3% per quarter from simply owning every 13F stock. It beat that baseline in only 48.3% of quarters (excess t = -0.81, not statistically significant). Its filings tell you what it bought — not what you should buy.

Avg 2Q excess
-2.0%
t-stat
-0.81
Quarterly win rate
48%
Annualized excess
+0.1%
$1 → follow vs universe
$1.78 vs $1.76
Cumulative return: $1 invested in new picks vs universe
1.00 20180331: universe 1.04120180630: universe 0.95920180930: universe 1.00320181231: universe 0.99220190331: universe 0.97520190630: universe 1.04820190930: universe 1.12720191231: universe 0.90920200331: universe 1.09620200630: universe 1.21120201231: universe 1.26620210331: universe 1.27720210630: universe 1.37920211231: universe 1.17420220630: universe 1.08720220930: universe 1.16820221231: universe 1.08520230331: universe 1.14320230630: universe 1.10220230930: universe 1.25120231231: universe 1.30720240331: universe 1.33620240630: universe 1.45820240930: universe 1.44520241231: universe 1.34920250331: universe 1.47020250630: universe 1.51720250930: universe 1.70520251231: universe 1.764 20180331: follow 1.00420180630: follow 1.01820180930: follow 1.16620181231: follow 1.18020190331: follow 1.05320190630: follow 1.11720190930: follow 1.29820191231: follow 1.23320200331: follow 1.93520200630: follow 1.95720201231: follow 2.10320210331: follow 2.07720210630: follow 2.40620211231: follow 2.04820220630: follow 1.93120220930: follow 1.94720221231: follow 2.03120230331: follow 2.06420230630: follow 1.74020230930: follow 2.00120231231: follow 1.93520240331: follow 2.07320240630: follow 1.96720240930: follow 1.65920241231: follow 1.48020250331: follow 1.50120250630: follow 1.60920250930: follow 1.53720251231: follow 1.782 0.84 1.72 2.60 20182019202020212022202320242025 Follow Universe

Quarterly compounding, invested quarters only · entry 47 days after quarter-end (when 13F data becomes public)

Listed as facts. See the verdict above before treating this as signal.

Top 20 holdings of 140 · 2026 Q1

Ticker Value Weight QoQ
AMZN $107M
7.2%
HOLD
GOOG $101M
6.8%
TRIM
KLAC $90M
6.1%
TRIM
AVGO $73M
4.9%
HOLD
CSCO $71M
4.8%
HOLD
META $53M
3.6%
TRIM
NVDA $53M
3.6%
TRIM
MSFT $51M
3.4%
TRIM
V $48M
3.2%
HOLD
GOOGL $44M
2.9%
TRIM
SCHW $40M
2.7%
TRIM
AMGN $39M
2.6%
TRIM
NXPI $34M
2.3%
TRIM
JPM $32M
2.1%
TRIM
ADBE $30M
2.0%
ADD
AAPL $29M
1.9%
HOLD
SNPS $25M
1.7%
HOLD
LOW $25M
1.7%
HOLD
NVS $24M
1.6%
HOLD
CB $23M
1.6%
HOLD

QoQ vs previous quarter's share count · NEW = new position · ADD/TRIM = ±2% shares · HOLD = unchanged.

Listed as facts. See the verdict above before treating this as signal.

New positions in 2026 Q1

Method & Limitations

Method: a "new position" = held this quarter, absent last quarter (options excluded; stocks with <50 prior holders excluded to filter spin-off artifacts). Entry 47 days after quarter-end — the first day the public could act on the filing. Benchmark = equal-weighted universe of all 13F-held stocks. Limitations: quarterly snapshots can't see intra-quarter trades; survivorship bias — funds that shut down are absent, which flatters the sample. Statistics, not advice.