Institutional 13F · Context Only · Never a Buy List机构 13F · 仅供参考 · 非买入清单
Whale Rock Capital
tiger_crossover
A
Reliability improving可靠性走强
leaderboard rank榜单排名 #7FOLLOW跟随
Book持仓规模
$12.5B
long US listed only仅美股多头
Positions持仓数
35
97% resolved已解析
Top-10 concentration前十集中度
59%
% of book占组合%
Turnover换手
MED
29.2% per quarter每季
Median excess中位超额
+1%
buys vs SPY, since filing买入相对SPY，自披露起 · n 186
Hit rate胜率
51%
share of buys beating SPY跑赢SPY的买入占比
Core lean — the 10-second read核心倾向 — 10秒速读
Core lean: AI Semiconductors — added AMD, ALAB, CBRS (+13.2pp of book this quarter)核心倾向：AI半导体 — 本季度加仓 AMD、ALAB、CBRS（占组合 +13.2pp）
AI SemiconductorsAI半导体
+13.2pp
14.0% of book held占组合持有
· 5 names标的
· Semiconductors
AMD
ALAB
CBRS
Technology (Equal-Weight)信息技术（等权）
+11.2pp
34.2% of book held占组合持有
· 11 names标的
· US Sectors (EW)
AMD
COHR
INTC
AI InfrastructureAI 基础设施
+11.0pp
18.9% of book held占组合持有
· 7 names标的
· AI & Technology
AMDCOHRCBRS
Consumer Discretionary (Equal-Weight)非必需消费（等权）
+6.9pp
6.9% of book held占组合持有
· 2 names标的
· US Sectors (EW)
AMZN
CVNA
Magnificent Seven七巨头
+4.7pp
14.5% of book held占组合持有
· 5 names标的
· AI & Technology
AMZN
TelecomTelecom
+2.6pp
2.6% of book held占组合持有
· 1 names标的
· Hardware
VIAV
Descriptive read of the latest filing — themes clustered from curated baskets (Finviz fallback), added-pp = Σ % of book bought this quarter. Not a forecast.基于最新披露的描述性解读——主题按精选篮子聚类（Finviz 兜底），added-pp = 本季度买入占组合百分比之和。非预测。
Grade & excess history评级与超额历史
per-quarter buy cohorts, scored on public filing dates vs SPY — descriptive ranks in a curated survivor cohort按季度买入队列，以公开披露日为锚相对SPY评分——精选幸存者队列中的描述性排名Reliability可靠性: improving走强 · 13 scored quarters已评分季度 · 54% positive为正 · recent-4 median近4季中位 +2% vs all-time对全期 +0%
Median excess by quarter各季度中位超额: ▁▂█▃▄▁▆▂▃▃▂▂ (oldest → newest, shifted by the series minimum so negatives render由旧到新，按序列最小值平移以呈现负值)
| Quarter季度 | Buys买入数 | Median excess中位超额 | Hit胜率 | Median fwd 63d中位前瞻63日 |
|---|---|---|---|---|
| 2023-06-30 | 12 | -25% | 33% | +3% |
| 2023-09-30 | 13 | -26% | 46% | -3% |
| 2023-12-31 | 13 | +0% | 54% | -14% |
| 2024-03-31 | 13 | +77% | 54% | -1% |
| 2024-06-30 | 19 | +13% | 58% | +7% |
| 2024-09-30 | 16 | +23% | 56% | +5% |
| 2024-12-31 | 12 | -27% | 33% | -5% |
| 2025-03-31 | 12 | +54% | 83% | +15% |
| 2025-06-30 | 21 | -2% | 48% | -3% |
| 2025-09-30 | 13 | +8% | 54% | +3% |
| 2025-12-31 | 13 | +8% | 69% | +39% |
| 2026-03-31 | 16 | -5% | 44% | +3% |
| 2026-06-30 | 13 | -5% | 31% | — |
Sector exposure & rotation行业配置与轮动
value-weighted, latest filing; QoQ deltas vs prior quarter按市值加权，最新披露；季度环比变化对上季Current weights当前权重 · 2026-06-30
Technology
72.2%
▲ +0.5pp
Communication Services
8.9%
▼ -4.9pp
Unclassified
7.5%
▲ +5.1pp
Consumer Cyclical
7.4%
▼ -1.7pp
Utilities
3.9%
▲ +1.0pp
Theme categories主题类别
AI & Technology 36.5%
Semiconductors 23.6%
US Sectors (EW) 2.5%
Software 1.3%
Artificial Intelligence 0.4%
Industrials & Defense 0.2%
Rotating into (QoQ)轮入（环比）
Utilities +1.0pp
Technology +0.5pp
Rotating out of (QoQ)轮出（环比）
Communication Services -4.9pp
Consumer Cyclical -1.7pp
Quarter history — top-3 sectors季度历史 — 前三大行业
| 2026-06-30 | Technology 72% · Communication Services 9% · Unclassified 8% |
| 2026-03-31 | Technology 72% · Communication Services 14% · Consumer Cyclical 9% |
| 2025-12-31 | Technology 71% · Consumer Cyclical 13% · Communication Services 12% |
| 2025-09-30 | Technology 67% · Communication Services 15% · Consumer Cyclical 10% |
| 2025-06-30 | Technology 64% · Communication Services 14% · Consumer Cyclical 10% |
| 2025-03-31 | Technology 57% · Consumer Cyclical 17% · Communication Services 11% |
| 2024-12-31 | Technology 56% · Consumer Cyclical 17% · Communication Services 11% |
| 2024-09-30 | Technology 55% · Consumer Cyclical 17% · Communication Services 12% |
| 2024-06-30 | Technology 58% · Communication Services 16% · Unclassified 12% |
| 2024-03-31 | Technology 53% · Unclassified 18% · Consumer Cyclical 16% |
| 2023-12-31 | Technology 53% · Unclassified 23% · Consumer Cyclical 13% |
| 2023-09-30 | Technology 61% · Unclassified 21% · Communication Services 12% |
Full book完整持仓
every resolved position as filed — click a column header to sort. Conviction is a descriptive composite, not a forecast.截至披露日的全部已解析持仓——点击列头排序。信念分为描述性综合指标，非预测。34 positions shown项持仓 · resolved已解析 34/35 (97%) · unresolved CUSIPs are excluded from this table but counted in book totals未解析CUSIP不列入本表，但计入组合总额
| #↕ | Ticker标的 ↕ | Company公司 ↕ | % book仓位% ↕ | Value金额 ↕ | Action动作 ↕ | Δ sharesΔ股数 ↕ | Add streak连加季数 ↕ | Conviction信念分 ↕ | Sector行业 ↕ | Themes主题 | Since filing自披露 ↕ |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  SNDK |
Sandisk Corp | 10.9% | $1.4B | trim | -25% | — | 70 · HIGH | Technology | Memory, HBM & Storage, Technology (Equal-Weight) | -12% |
| 2 | AMD |
Advanced Micro Devices Inc | 7.0% | $877M | add | +2081% | 2q | 79 · HIGH | Technology | AI Infrastructure, AI Semiconductors, Technology (Equal-Weight) | -1% |
| 3 |  GOOGL |
Alphabet Inc | 6.9% | $856M | trim | -10% | — | 68 · MODERATE | Communication Services | Magnificent Seven, AI Software & Platforms, Quantum Computing | +3% |
| 4 |  TTMI |
Ttm Technologies Inc | 6.3% | $791M | add | +20% | 1q | 72 · HIGH | Technology | — | -11% |
| 5 | ALAB |
Astera Labs Inc | 6.1% | $757M | new | — | 1q | 71 · HIGH | — | AI Semiconductors | -18% |
| 6 | AMZN |
Amazon Com Inc | 4.7% | $583M | add | +34% | 1q | 70 · MODERATE | Consumer Cyclical | Magnificent Seven, Consumer Discretionary (Equal-Weight) | -1% |
| 7 |  GLW |
Corning Inc | 4.6% | $571M | hold | -3% | — | 64 · MODERATE | Technology | AI Infrastructure, Non-AI Tech & Hardware, Technology (Equal-Weight) | -15% |
| 8 |  MKSI |
Mks Inc. | 4.5% | $566M | hold | -3% | — | 63 · MODERATE | Technology | Semiconductor Equipment (WFE) | -24% |
| 9 |  CLS |
Celestica Inc | 4.3% | $539M | hold | -3% | — | 62 · MODERATE | Technology | — | +3% |
| 10 |  BE |
Bloom Energy Corp | 3.9% | $487M | hold | -3% | — | 61 · MODERATE | Utilities | Hydrogen | +20% |
| 11 | COHR |
Coherent Corp | 3.9% | $482M | add | +25% | 1q | 50 · MODERATE | Technology | AI Infrastructure, Technology (Equal-Weight) | -23% |
| 12 |  FN |
Fabrinet | 3.4% | $419M | add | +22% | 1q | 49 · MODERATE | Technology | — | -35% |
| 13 |  SITM |
Sitime Corp | 3.4% | $418M | hold | -3% | — | 44 · LOW | Technology | — | -20% |
| 14 |  FROG |
Jfrog Ltd | 3.2% | $405M | trim | -26% | — | 42 · LOW | Technology | DevOps, DevOps | -7% |
| 15 |  MTSI |
Macom Tech Solutions Hldgs I | 3.0% | $376M | trim | -16% | — | 41 · LOW | Technology | — | -25% |
| 16 | VIAV |
Viavi Solutions Inc | 2.6% | $328M | add | +98% | 2q | 40 · LOW | Technology | Telecom | -25% |
| 17 |  LRCX |
Lam Research Corp | 2.6% | $322M | trim | -22% | — | 28 · LOW | Technology | AI Infrastructure, Semiconductor Equipment (WFE), Technology (Equal-Weight) | -19% |
| 18 |  TSM |
Taiwan Semiconductor Manufac | 2.3% | $282M | trim | -28% | — | 28 · LOW | Technology | Compute, Compute, Foundries | -1% |
| 19 | CVNA |
Carvana Co | 2.2% | $281M | add | +386% | 1q | 32 · LOW | Consumer Cyclical | Consumer Discretionary (Equal-Weight) | +3% |
| 20 |  META |
Meta Platforms Inc | 2.1% | $257M | trim | -11% | — | 25 · LOW | Communication Services | Magnificent Seven, AI Software & Platforms, Communication Services (Equal-Weight) | +19% |
| 21 |  WDC |
Western Digital Corp | 2.0% | $256M | hold | -3% | — | 24 · LOW | Technology | Memory, HBM & Storage, Technology (Equal-Weight) | -19% |
| 22 |  APP |
Applovin Corp | 1.9% | $238M | trim | -34% | — | 23 · LOW | Technology | AI Software & Platforms, AI Agents & Applications, Technology (Equal-Weight) | +9% |
| 23 |  SNOW |
Snowflake Inc | 1.8% | $225M | new | — | 1q | 17 · LOW | Technology | AI Software & Platforms, Non-AI Software | +2% |
| 24 |  TWLO |
Twilio Inc | 1.4% | $170M | new | — | 1q | 26 · LOW | Technology | PaaS, CRM, Collaboration | +3% |
| 25 |  KVYO |
Klaviyo Inc | 0.7% | $83M | trim | -19% | — | 20 · LOW | Technology | Non-AI Software | +1% |
| 26 |  NVDA |
Nvidia Corporation | 0.6% | $75M | trim | -64% | — | 19 · LOW | Technology | Magnificent Seven, AI Infrastructure, AI Semiconductors | -5% |
| 27 |  MDB |
Mongodb Inc | 0.6% | $75M | hold | +0% | — | 19 · LOW | Technology | Non-AI Software | -11% |
| 28 |  PI |
Impinj Inc | 0.5% | $58M | hold | +0% | — | 17 · LOW | Technology | Industrial IoT, Edge Devices | -3% |
| 29 |  DUOL |
Duolingo Inc | 0.4% | $54M | hold | +0% | — | 16 · LOW | Consumer Cyclical | AI Agents & Applications | +18% |
| 30 | INTC |
Intel Corp | 0.3% | $36M | new | — | 1q | 10 · LOW | Technology | Technology (Equal-Weight) | -5% |
| 31 |  AAPL |
Apple Inc | 0.2% | $29M | hold | +3% | — | 14 · LOW | Technology | Magnificent Seven, Technology (Equal-Weight) | +11% |
| 32 |  SPCX |
Space Exploration Techn Corp | 0.2% | $26M | new | — | 1q | 8 · LOW | — | Space Economy | +3% |
| 33 |  AVGO |
Broadcom Inc | 0.2% | $23M | trim | -92% | — | 12 · LOW | Technology | AI Infrastructure, AI Semiconductors, Technology (Equal-Weight) | -11% |
| 34 | CBRS |
Cerebras Systems Inc | 0.1% | $11M | new | — | 1q | 6 · LOW | — | AI Infrastructure, AI Semiconductors | -27% |
Rotation detail轮动明细
this filing cycle, uncapped — adds/new and trims from the resolved book, exits from the rotation feed本披露周期，不设上限——新建/加仓与减持取自已解析持仓，清仓取自轮动数据Rotated into轮入 (13)
| AMD add |
7.0% | -1% |
| TTMI add |
6.3% | -11% |
| ALAB new |
6.1% | -18% |
| AMZN add |
4.7% | -1% |
| COHR add |
3.9% | -23% |
| FN add |
3.4% | -35% |
| VIAV add |
2.6% | -25% |
| CVNA add |
2.2% | +3% |
| SNOW new |
1.8% | +2% |
| TWLO new |
1.4% | +3% |
| INTC new |
0.3% | -5% |
| SPCX new |
0.2% | +3% |
| CBRS new |
0.1% | -27% |
Rotated out of轮出 (17)
| SNDK trim |
-25% | -12% |
| GOOGL trim |
-10% | +3% |
| FROG trim |
-26% | -7% |
| MTSI trim |
-16% | -25% |
| LRCX trim |
-22% | -19% |
| TSM trim |
-28% | -1% |
| META trim |
-11% | +19% |
| APP trim |
-34% | +9% |
| KVYO trim |
-19% | +1% |
| NVDA trim |
-64% | -5% |
| AVGO trim |
-92% | -11% |
 AEIS exit |
-100% | -25% |
 ARM exit |
-100% | -10% |
 CIEN exit |
-100% | -27% |
 MSFT exit |
-100% | +7% |
 NFLX exit |
-100% | +7% |
 RBLX exit |
-100% | +37% |
Trade log交易记录
last 40 graded trades, filing-date anchored, newest first — variable hold vs SPY最近40笔已评分交易，以披露日为锚，最新在前——持有期不定，相对SPYNo graded trades available for this fund.该基金暂无已评分交易。
Caveats注意事项 —
13F = quarterly, ~45-day lag, reported long positions from managers with at least $100M in Section 13(f) securities. No shorts, no cash, no non-US positions. This desk is context — ownership is never a directional signal here.13F = 季度披露，约45天滞后，仅含美股多头且持仓≥1亿美元。不含空头、现金或非美股仓位。本台仅为背景参考——持仓数据在此永远不是方向性信号。
Grades and reliability are descriptive ranks within a curated survivor cohort — they measure what filings did after their filing dates, not a manager-selection edge. Conviction and core-lean reads are descriptive composites earning a forward record via the pre-registered ledger (L5); sector/theme classification applies the current map to history.评级与可靠性为精选幸存者队列中的描述性排名——衡量披露日之后持仓的表现，而非经理选择能力。信念分与核心倾向为描述性综合指标，通过预注册账本（L5）积累前瞻记录；行业/主题分类将当前映射应用于历史。