G Guru DNA Investor Style
Q1 2026 · 13F
GURU PROFILE · Q1 2026 · 13F-HR Standard
OH

Ole Andreas Halvorsen — diversified growth contrarian

Ole Andreas Halvorsen is a 'Tiger Cub' who co-founded Viking Global Investors, a long/short equity firm rooted in deep fundamental research. The long book here tilts toward growth with a contrarian streak.

Viking Global Investors
Positions
73
Avg Annual Return, 5 yr
+12,6%
Alpha vs S&P 500, Annual
−5,9%
Max Drawdown
−18,1%
Sharpe (5 yr)
0,81

DNA Fingerprint

6 axes · Q1 2026
255075100VALUE33RISK57CONCENTRATION20TURNOVER88QUALITY63CONTRARIAN87
Q1 2026 (latest)

Style Traits

  • Value Value / Growth
    33 −5 since Q1 2025

    Growth Value

  • Risk Risk Appetite
    57 −11 since Q1 2025

    Low High

  • Concentration Portfolio Focus
    20 +0 since Q1 2025

    Diversified Focused

  • Turnover Trading Activity
    88 −5 since Q1 2025

    Long-term Active

  • Quality Profitability
    63 +11 since Q1 2025

    Speculative Profitable

  • Contrarian Contrarianism
    87 +36 since Q1 2025

    With Crowd Against Crowd

Methodology

Each axis is a percentile rank from 0 to 100 relative to the profiled guru cohort; 50 is the cohort midpoint. The higher the value, the stronger the trait. The dashed overlay is the median shape of the guru's behavioral peer group, so you can read where this investor is unusual within their own style. The Trajectory arrows trace the drift from four quarters ago to now — an illustration of the method over a short window, not a statistical claim.

  • Value (Value / Growth) — how cheaply the portfolio's stocks are priced versus the market, by valuation multiples (e.g. price-to-earnings). A higher score means cheaper, value-style picks; a lower score means pricier, growth-style bets the market expects to grow fast.
  • Risk (Risk Appetite) — how much price volatility and business fragility the portfolio carries. A higher score means bolder, more volatile holdings (think biotech or meme stocks); a lower score means defensive, steady names like utilities and staples.
  • Concentration (Portfolio Focus) — how much of the portfolio sits in its few largest positions. A higher score means a focused book of big convictions; a lower score means bets spread thinly across many names.
  • Turnover (Trading Activity) — how much the lineup of holdings changes from one quarter to the next. A higher score means an active trader rotating names in and out; a lower score means a patient, buy-and-hold roster.
  • Quality (Profitability) — how profitable and financially solid the businesses in the portfolio are. A higher score means durable, profitable companies; a lower score means speculative or pre-profit bets.
  • Contrarian (Contrarianism) — how often the guru's trades go against what the other gurus are doing. A higher score means buying what the crowd sells and vice versa; a lower score means moving with the consensus.

Extended DNA

Beyond the radar's six: two further behavioral reads — whether new buys add to existing holdings or start fresh, and the size of companies the book favors — on the same 0–100 cohort-percentile scale.

  • Follow-On Buying — Of the quarter's buys, the share that add to tickers already held rather than open fresh positions. A higher score means doubling down on existing convictions; a lower score means spreading into new bets.
  • Size Bias — Whether the book tilts toward large, easy-to-trade companies or smaller, thinly-traded ones — gauged from each holding's trading liquidity, which stands in for company size rather than measuring market cap directly. A higher score means large, liquid mega-caps; a lower score means smaller, less-liquid names.
  • Conviction Follow-On Buying
    34 +2 since Q1 2025

    New bets Adds to conviction

  • Size Size Bias
    78 +16 since Q1 2025

    Small-cap Large-cap

DNA Anomalies

4 deviations · basis Q1 2024–Q4 2025
GURU PATTERNBOUGHT · LARGERSOLD · LARGERSOLD · SMALLERBOUGHT · SMALLERsoldboughtlargersmallerTSMDISFTVMCDSHWAAPLPNCMSFTMANECPTORKA
Dot colour — type of deviationConcentration / contrarianMomentumOther positions (no deviation)5% of portfolio
What deviated from pattern
TSMMCDSHW
Taiwan Semiconductor Manufacturing Company Limited · McDonald's Corporation · The Sherwin-Williams Company
Quality: a notable shift toward profitable names — 1.9σ above its 9-quarter norm (51→63). Led by MCD, TSM, SHW.
DISFTV
The Walt Disney Company · Fortive Corporation
Risk appetite: a notable shift toward lower risk — 1.8σ below its 9-quarter norm (64→57). Led by DIS, FTV, MCD.
AAPLPNCMSFT
Apple Inc. · The PNC Financial Services Group, Inc. · Microsoft Corporation
Turnover: a notable shift toward longer holding — 2.0σ below its 8-quarter norm (92→88). Led by AAPL, PNC, MSFT.
MANECPTORKA
Veradermics, Incorporated · Camden Property Trust · Oruka Therapeutics, Inc.
Contrarian index: a notable shift further against the crowd — 1.6σ above its 8-quarter norm (69→87). Led by MANE, CPT, ORKA.

Backtest · Cost of Delay

real 13F delay vs S&P 500
Cost of Delay

Copying with the real 13F publication delay earns an extra  0,5 pp of return over 2 years.

Guru (2 years)
+29,4%
Copier (13F)
+29,9%
S&P 500
+44,6%
90110130150129130145Q2 ’24Q3 ’24Q4 ’24Q1 ’25Q2 ’25Q3 ’25Q4 ’25Q1 ’26Q2 ’26DELAY SPREAD

Managers with assets above $100M disclose positions in Form 13F-HR within 45 days after quarter end. The backtest runs three $100,000 portfolios: the guru rebalances at quarter-end prices, the copier mirrors the same weights on the actual filing date, and S&P 500 is the benchmark.

The hatched area is the cost of delay: the difference in cumulative returns between the guru and the copier in percentage points. The delay is not always a disadvantage — if a stock fell between quarter end and the filing date, the copier buys in cheaper.

The guru curve is also a model: 13F shows only long positions in US equities at quarter end, without intra-quarter trades, shorts, or cash. Commissions, slippage, and taxes are not accounted for.

Notable Signals

synthesis metrics
Concentration × Contrarian

Diversified contrarian

A spread of off-consensus names rather than one big bet — diversified contrarianism (concentration 20/100, contrarian 87/100 vs peers).

Contrarian
Value × Quality

Quality compounder

Growth-leaning with top-tier quality — paying up for durable franchises (value 33/100, quality 63/100 vs peers).

Conviction

Top 10 Positions

of 73 · Q1 2026
Ticker Company Δ for quarter Weight
V Visa Inc. +1,7
5,6%
TSM Taiwan Semiconductor Manufacturing Company Limited +0,2
4,4%
SCHW The Charles Schwab Corporation +0,1
4,0%
DIS The Walt Disney Company +0,2
3,7%
FTV Fortive Corporation +0,6
3,6%
APD Air Products and Chemicals, Inc. +0,2
3,5%
MCD McDonald's Corporation +0,2
3,3%
SHW The Sherwin-Williams Company 0,0
2,9%
TSLA Tesla, Inc. +0,6
2,7%
AAPL Apple Inc. +2,7
2,7%