Whale Rock Capital — Profile of the Tech-Focused Growth Fund
Whale Rock Capital Management — Alex Sacerdote's $10B+ tech-focused hedge fund. Deep dives into internet, software, and growth companies. Full profile, holdings, and philosophy.
9 min czytania- $12.46B
- 13F portfolio, Q2 2026 (35 positions)
- 10.9%
- top holding: SanDisk
- +72.5%
- H1 2026 return (then −21.7% in July)
- ~$19B
- firm AUM (August 2026)
Fact-checked against primary sources on · figures re-verified on regulator, issuer or SEC filings — not copied from other sites
Whale Rock Capital — The Tech-Obsessed Growth Hunter
Whale Rock Capital Management is one of the most focused tech-growth hedge funds in the business. Founded by Alex Sacerdote — a former Fidelity star — the fund manages over $10 billion and concentrates almost entirely on technology, internet, and software companies.
While other funds diversify across sectors, Whale Rock doubles down on where it has an edge: understanding the future of technology.
Quick Answer
Whale Rock Capital Management, founded by Alex Sacerdote in 2006, is a Boston-based tech-growth hedge fund managing ~$10 billion that concentrates almost entirely on technology, internet, software, and semiconductor names. Its 13F discloses a concentrated book of typically 30–50 public positions, with 2025 top holdings including Meta Platforms, Amazon, Microsoft, Alphabet, and Netflix, plus Uber, Shopify, CrowdStrike, Datadog, and ServiceNow. The fund also crosses into late-stage private companies, but retail investors cannot buy in directly. 13F filings are public and lagged ~45 days — a signal of institutional positioning, not investment advice.
Key Facts
| Parameter | Value |
|---|---|
| Founder & CIO | Alex Sacerdote |
| Founded | 2006 |
| Style | Long-biased, tech/growth equity |
| AUM | ~$19B (Bloomberg, August 2026); regulatory AUM $13.0B (Form ADV, June 2026); 13F $12.46B in 35 positions (Q2 2026) |
| Headquarters | Boston, Massachusetts, USA |
| Focus | Technology, internet, software, semiconductors |
| Structure | Hedge fund (public equities + private investments) |
| Notable | Former Fidelity portfolio manager pedigree |
Investment Philosophy
Whale Rock's approach is built around deep sector expertise:
1. Technology Concentration
Unlike diversified hedge funds, Whale Rock focuses almost exclusively on technology and tech-adjacent companies. The team develops deep domain expertise rather than spreading attention thin.
2. Public + Private Crossover
Whale Rock invests in both public equities and late-stage private companies. This dual approach gives them:
- Early insight into emerging trends from private portfolio
- Ability to invest in companies pre-IPO and hold through listing
- A more complete view of the technology landscape
3. Fundamental, Bottom-Up Research
The team focuses on understanding unit economics, competitive moats, and total addressable markets. They look for:
- Companies with strong secular growth tailwinds
- Businesses with network effects or high switching costs
- Management teams with proven execution ability
4. Concentrated Positions
Whale Rock runs a relatively concentrated portfolio — typically 30–50 public positions, with top holdings representing significant conviction bets.
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See your Freedom Runway — freeTop Holdings (13F, Q2 2026)
Source: SEC Form 13F-HR filed August 14, 2026 (period ending June 30, 2026) — $12.46B across 35 positions, up from $7.74B in Q1 as the AI-hardware book rallied.
| Holding | Sector | Value (Q2 2026) | % of 13F |
|---|---|---|---|
| SanDisk | Memory/storage | $1.36B | 10.9% |
| AMD | Semiconductors | $0.88B | 7.0% |
| Alphabet | Internet/AI | $0.86B | 6.9% |
| TTM Technologies | PCBs | $0.79B | 6.4% |
| Astera Labs | AI connectivity | $0.76B | 6.1% |
| Amazon | Cloud | $0.58B | 4.7% |
| Corning | Optical/materials | $0.57B | 4.6% |
| MKS Instruments | Semiconductor equipment | $0.57B | 4.5% |
Then Celestica, Bloom Energy, Coherent and Fabrinet. The portfolio has pivoted hard toward AI hardware, memory and connectivity; Meta is down to 2.1% and Microsoft is no longer held.
Key People
- Alex Sacerdote — Founder and CIO. Previously a technology analyst and sector portfolio manager at Fidelity Investments (1999-2006); Hamilton College BA, Harvard Business School MBA. Founded Whale Rock in 2006.
- The team is intentionally lean and focused — senior analysts typically cover 5–10 companies each in depth.
Performance
Verified figures (Hedgeweek/Bloomberg): 2023 +31.8% (public class), 2024 +51% (flagship), 2025 +27%, H1 2026 +72.5% — then July 2026 −21.7%, leaving the flagship at +35.1% year-to-date through July. 2022 was a deep drawdown (roughly −40%). The fund re-opened to new capital in early 2025 and now also runs a dedicated "Flagship (AI) Fund".
Why Track Whale Rock's Holdings?
Whale Rock is one of the purest tech-growth signals in the 13F filing universe:
- Sector expert — they live and breathe technology; their picks reflect deep domain knowledge
- Concentrated bets — high-conviction positions mean each holding carries real signal
- Public/private crossover — their private investments give them early insight into emerging tech trends
- Proven pedigree — Sacerdote's Fidelity track record established credibility before Whale Rock
When Whale Rock takes a new position in a tech company, it's worth paying attention.
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FAQ
Is Whale Rock Capital a hedge fund or a mutual fund?
Whale Rock is a hedge fund — it's only available to institutional investors and accredited individuals, with high minimums. Retail investors can't invest directly, but they can study Whale Rock's public equity holdings through quarterly 13F filings.
Why does Whale Rock focus only on tech?
Founder Alex Sacerdote believes deep specialization creates an edge. Rather than covering all sectors superficially, Whale Rock builds unmatched expertise in technology. This focus allows the team to better understand competitive dynamics, product cycles, and disruptive trends.
How is Whale Rock different from Tiger Global or Coatue?
All three are tech-focused funds, but they differ in style. Whale Rock is more concentrated and public-equity-focused. Tiger Global was historically more aggressive in private markets. Coatue blends public and private but covers a broader range of tech subsectors. Whale Rock's Boston roots and Fidelity DNA also give it a distinct, research-heavy culture.
How large is Whale Rock Capital's portfolio?
Whale Rock has historically managed in the range of $10B+ in assets, though figures fluctuate with markets and flows. Its public US equity positions are disclosed quarterly in 13F filings, which show a concentrated book weighted toward technology and growth names. The exact size is worth checking against the latest disclosures, as hedge-fund AUM changes over time.
Can retail investors invest in Whale Rock Capital?
Whale Rock is a private hedge fund, so retail investors generally cannot invest directly — access is typically limited to accredited and institutional investors meeting high minimums. Some people follow its publicly disclosed 13F holdings for research ideas rather than buying into the fund itself. Tracking a fund's positions is informational only and not the same as investing alongside it.