Light Street Capital
Glen Kacher · CIK 0001569049 · latest 13F for 2026-06-30 filed 2026-08-14
Estimated from 13F holdings — long US equities only; follow-the-filing returns are net of an assumed 10 bps per unit of turnover.
About the fund
Light Street Capital Management is a technology-focused investment firm based in Palo Alto, California, founded in 2010 by Glen Kacher. The firm manages hedge funds and long-only funds that invest in public equity markets, alongside private growth funds, with a primary focus on disruptive technology and the semiconductor supply chain.
Strategy
Technology-focused long/short equity and crossover investing
Investment approach
Light Street employs a concentrated, actively managed portfolio strategy focused on disruptive technology businesses. The firm utilizes a thematic framework that currently emphasizes five areas: infrastructure, cloud service platforms, data platforms, application and distribution, and automation, robotics, and space. By operating from Silicon Valley, the firm seeks to gain early access to technological shifts through direct engagement with entrepreneurs and venture capitalists.
History
Founded in 2010 by Glen Kacher, a former Tiger Management analyst, the firm initially focused on themes like mobile, social, cloud computing, and e-commerce. Over the past 15 years, it has evolved its investment framework, recently redesigning its strategy to focus on a new thematic framework centered on the AI supercycle. The firm has also expanded into private growth investing through its Beacon fund series.
Notable positions & campaigns
- Taiwan Semiconductor Manufacturing (TSM)2026 — Largest long position as of Q2 2026.
- Nvidia2026 — Core holding in the firm's AI-infrastructure focus.
- Advanced Micro Devices (AMD)2026 — Core holding in the firm's AI-infrastructure focus.
- Broadcom Inc.2026 — Core holding in the firm's AI-infrastructure focus.
- GitLab Inc.2026 — Significant position in the firm's portfolio.
Profile generated 2026-10-09 from public sources; may be incomplete or out of date.
- Founded by
- Glen Kacher
- Founded
- 2010
- HQ
- Palo Alto, United States
- Reported AUM
- $1.6bn (as of March 27, 2026)
- Website
- lightstreet.com
Management
- Glen KacherCIO, Founder
- Robert WenzellChief Financial Officer
- George LynchChief Operating Officer
- Christopher CrawfordPartner
- Kevin SullivanPartner
- Theo J. RobinsChief Compliance Officer
Holdings heatmap
Latest 13F (2026-06-30): top 27 positions grouped by sector, sized by weight, coloured by the change in weight since the previous 13F.
Holdings map
Each tile is a position, sized by reported value and coloured by the stock's own price return (red down, green up) — the LiquidRound / finviz-style map.
Copy portfolio vs SPY
Growth of $1 following each filing the trading day after it was filed.
Top holdings
Latest 13F (2026-06-30).
| # | Ticker | Value | Weight |
|---|---|---|---|
| 1 | TSM | $108M | 12.7% |
| 2 | AMD | $64M | 7.5% |
| 3 | ALAB | $61M | 7.1% |
| 4 | GTLB | $59M | 7.0% |
| 5 | AVGO | $58M | 6.8% |
| 6 | AMKR | $51M | 6.0% |
| 7 | — | $47M | 5.5% |
| 8 | MKSI | $46M | 5.4% |
| 9 | CHYM | $45M | 5.3% |
| 10 | CPNG | $35M | 4.1% |
| 11 | TOST | $32M | 3.8% |
| 12 | RDDT | $32M | 3.7% |
| 13 | NVDA | $27M | 3.2% |
| 14 | BE | $25M | 3.0% |
| 15 | — | $22M | 2.6% |
| 16 | MELI | $22M | 2.5% |
| 17 | — | $19M | 2.3% |
| 18 | SNOW | $18M | 2.1% |
| 19 | MDB | $17M | 2.0% |
| 20 | GOOGL | $15M | 1.8% |
| 21 | AMZN | $12M | 1.4% |
| 22 | DDOG | $10M | 1.2% |
| 23 | DRAM | $9M | 1.0% |
| 24 | — | $6M | 0.8% |
| 25 | ADI | $4M | 0.5% |
Sector mix
Top-25 holdings by weight.
Changes this quarter
| Move | Ticker | Prev wt | Now wt |
|---|---|---|---|
| new | ALAB | 0.0% | 7.1% |
| trimmed | NVDA | 9.5% | 3.2% |
| exited | BILL | 4.8% | 0.0% |
| new | TOST | 0.0% | 3.8% |
| trimmed | AMZN | 5.2% | 1.4% |
| new | RDDT | 0.0% | 3.7% |
| new | MELI | 0.0% | 2.5% |
| added | CHYM | 7.8% | 5.3% |
| exited | IOT | 2.4% | 0.0% |
| added | AMKR | 3.7% | 6.0% |
| new | SNOW | 0.0% | 2.1% |
| new | MDB | 0.0% | 2.0% |
| added | GTLB | 5.1% | 7.0% |
| added | BE | 1.4% | 3.0% |
| trimmed | AMD | 9.0% | 7.5% |
| new | DRAM | 0.0% | 1.0% |
| added | — | 1.8% | 2.3% |
| exited | LITE | 0.4% | 0.0% |
| exited | AMPL | 0.4% | 0.0% |
| new | QNT | 0.0% | 0.3% |
Quarterly copy returns
Each 13F held from the day after filing until the next filing.
| 13F period | Copy | SPY | Alpha | Coverage |
|---|---|---|---|---|
| 2026-06-30 | +2.8% | +0.4% | +2.4% | 89% |
| 2026-03-31 | +14.0% | +4.9% | +9.1% | 89% |
| 2025-12-31 | +17.0% | +7.9% | +9.1% | 86% |
| 2025-09-30 | -3.4% | +3.4% | -6.9% | 85% |
| 2025-06-30 | +9.4% | +3.7% | +5.7% | 91% |
| 2025-03-31 | +25.1% | +8.6% | +16.5% | 87% |
| 2024-12-31 | -10.7% | -2.5% | -8.2% | 91% |
| 2024-09-30 | +7.3% | +4.7% | +2.5% | 90% |
| 2024-06-30 | +16.2% | +6.2% | +10.0% | 92% |
| 2024-03-31 | +8.0% | +4.9% | +3.0% | 89% |
| 2023-12-31 | +5.2% | +5.6% | -0.4% | 87% |
| 2023-09-30 | +30.6% | +12.1% | +18.5% | 86% |
| 2023-06-30 | +7.3% | +1.9% | +5.4% | 87% |
| 2023-03-31 | +16.4% | +8.4% | +8.1% | 85% |
| 2022-12-31 | -1.1% | -0.5% | -0.6% | 79% |
| 2022-09-30 | +3.4% | +4.4% | -1.0% | 71% |
Filing dates
- 2026-08-1413F-HR for 2026-06-30 · $903M · 28 rows
- 2026-05-1513F-HR for 2026-03-31 · $534M · 24 rows
- 2026-02-1713F-HR for 2025-12-31 · $650M · 24 rows
- 2025-11-1413F-HR for 2025-09-30 · $594M · 27 rows
- 2025-08-1413F-HR for 2025-06-30 · $490M · 26 rows
- 2025-05-1513F-HR for 2025-03-31 · $358M · 21 rows
- 2025-02-1413F-HR for 2024-12-31 · $545M · 30 rows
- 2024-11-1413F-HR for 2024-09-30 · $423M · 22 rows
- 2024-08-1413F-HR for 2024-06-30 · $435M · 26 rows
- 2024-05-1513F-HR for 2024-03-31 · $413M · 22 rows
- 2024-02-1413F-HR for 2023-12-31 · $334M · 21 rows
- 2023-11-1413F-HR for 2023-09-30 · $340M · 23 rows
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