Light Street Capital Management, LLC reported 26 positions worth $841.83M for the quarter ended Jun 30, 2026, up 69.3% on the prior quarter. It opened 7 new positions, added to 11, trimmed 7 and exited 4. Its largest holding is Taiwan Semiconductor Manufacturing Co Ltd at 12.8% of the portfolio.
Reported 13F market value at each quarter end. A change mixes trading with price moves in the positions held.
Dollar value of shares bought and sold each quarter, at that quarter’s price. It counts trading only, not price changes.
How many positions were opened, added to, trimmed or closed each quarter.
Share of reported value in each sector at every quarter end.
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| ALAB Astera Labs, Inc. | +125.8K | – | $60.74M | 7.22% |
| TOST Toast, Inc. | +1.17M | – | $32.48M | 3.86% |
| RDDT Reddit, Inc. | +182.5K | – | $31.68M | 3.76% |
| GTLB Gitlab Inc. | +775.0K | +66.2% | $23.66M | 7.05% |
| MELI Mercadolibre Inc | +12.8K | – | $21.64M | 2.57% |
| SNOW Snowflake Inc. | +70.0K | – | $17.82M | 2.12% |
| CPNG Coupang, Inc. | +973.0K | +92.5% | $16.90M | 4.18% |
| MDB MongoDB, Inc. | +50.0K | – | $16.80M | 2% |
| AMKR Amkor Technology, Inc. | +189.8K | +46.6% | $16.37M | 6.11% |
| BE Bloom Energy Corp | +33.5K | +66.3% | $10.15M | 3.03% |
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| AMD Advanced Micro Devices Inc | -109.8K | -50.1% | $63.76M | 7.56% |
| NVDA Nvidia Corp | -135.5K | -49.8% | $27.11M | 3.25% |
| BILL BILL Holdings, Inc. | -625.0K | -100.0% | $23.94M | Exited |
| AMZN Amazon Com Inc | -73.8K | -59.1% | $17.59M | 1.44% |
| IOT Samsara Inc. | -384.0K | -100.0% | $12.17M | Exited |
| MKSI Mks Inc | -18.5K | -15.1% | $8.21M | 5.48% |
| FROG JFrog Ltd | -60.5K | -10.5% | $5.50M | 5.55% |
| LITE Lumentum Holdings Inc. | -2,892 | -100.0% | $2.03M | Exited |
| AMPL Amplitude, Inc. | -292.8K | -100.0% | $2.00M | Exited |
| TSM Taiwan Semiconductor Manufacturing Co Ltd | -1,636 | -0.7% | $781.30K | 12.82% |
| Holding | Shares | Trade Value | Weight |
|---|---|---|---|
| ALAB Astera Labs, Inc. | +125.8K | $60.74M | 7.22% |
| TOST Toast, Inc. | +1.17M | $32.48M | 3.86% |
| RDDT Reddit, Inc. | +182.5K | $31.68M | 3.76% |
| MELI Mercadolibre Inc | +12.8K | $21.64M | 2.57% |
| SNOW Snowflake Inc. | +70.0K | $17.82M | 2.12% |
| MDB MongoDB, Inc. | +50.0K | $16.80M | 2% |
| QNT Quantinuum Inc. | +35.2K | $2.88M | 0.342% |
| # | Activity | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | TSM Taiwan Semiconductor Manufacturing Co Ltd | Technology | 225.9K | $107.91M | 12.82% | -1,636 | -0.7% | Reduced | 0% |
| 2 | AMD Advanced Micro Devices Inc | Technology | 109.5K | $63.61M | 7.56% | -109.8K | -50.1% | Reduced | 0.01% |
| 3 | ALAB Astera Labs, Inc. | Technology | 125.8K | $60.74M | 7.22% | +125.8K | – | New | 0.07% |
| 4 | GTLB Gitlab Inc. | Technology | 1.95M | $59.38M | 7.05% | +775.0K | +66.2% | Added | 1.27% |
| 5 | AVGO Broadcom Inc. | Technology | 153.3K | $57.89M | 6.88% | +3,450 | +2.3% | Added | 0% |
| 6 | AMKR Amkor Technology, Inc. | Technology | 596.8K | $51.46M | 6.11% | +189.8K | +46.6% | Added | 0.24% |
| 7 | FROG JFrog Ltd | Technology | 514.5K | $46.76M | 5.55% | -60.5K | -10.5% | Reduced | 0.42% |
| 8 | MKSI Mks Inc | Technology | 103.8K | $46.17M | 5.48% | -18.5K | -15.1% | Reduced | 0.15% |
| 9 | CHYM Chime Financial, Inc. | Technology | 2.20M | $45.04M | 5.35% | +121.5K | +5.8% | Added | 0.63% |
| 10 | CPNG Coupang, Inc. | Consumer Discretionary | 2.03M | $35.17M | 4.18% | +973.0K | +92.5% | Added | 0.12% |
| 11 | TOST Toast, Inc. | Technology | 1.17M | $32.48M | 3.86% | +1.17M | – | New | 0.2% |
| 12 | RDDT Reddit, Inc. | Technology | 182.5K | $31.68M | 3.76% | +182.5K | – | New | 0.13% |
| 13 | NVDA Nvidia Corp | Technology | 136.7K | $27.36M | 3.25% | -135.5K | -49.8% | Reduced | 0% |
| 14 | BE Bloom Energy Corp | Industrials | 84.2K | $25.48M | 3.03% | +33.5K | +66.3% | Added | 0.03% |
| 15 | ASML Asml Holding Nv | Technology | 11.0K | $21.80M | 2.59% | +11 | +0.1% | Added | 0% |
Tip. Select a row to see that position’s full history at Light Street Capital Management.
As of its Q2 2026 13F filing, Light Street Capital Management, LLC’s five largest positions were Taiwan Semiconductor Manufacturing Co Ltd (TSM) at 12.8%, Advanced Micro Devices Inc (AMD) at 7.6%, Astera Labs, Inc. (ALAB) at 7.2%, Gitlab Inc. (GTLB) at 7.1%, Broadcom Inc. (AVGO) at 6.9% of the reported portfolio.
Light Street Capital Management, LLC reported a 13F portfolio worth $841.83M across 26 positions for Q2 2026. That is up 69.3% from the previous quarter.
Its largest purchases by value were Astera Labs, Inc. ($60.74M), Toast, Inc. ($32.48M), Reddit, Inc. ($31.68M). It opened 7 new positions.
Its largest sales by value were Advanced Micro Devices Inc ($63.76M), Nvidia Corp ($27.11M), BILL Holdings, Inc. ($23.94M). It exited 4 positions entirely.
From the Form 13F-HR reports Light Street Capital Management, LLC files with the SEC each quarter, within 45 days of quarter end. A 13F lists long positions in US-listed equities and options; it excludes short positions, cash, bonds and most non-US holdings.
13F data reflects long positions in US-listed equities and options as reported to the SEC up to 45 days after quarter end. It excludes short positions, cash, bonds and most non-US securities, so it is not a complete picture of a manager’s assets.