Institutional Manager · CIK 0001389958
PEAK6 LLC
CHICAGO, IL · File #028-12346
Latest AUM
$53.76B
Positions
2,826
Top-10 Concentration
42.4%
Filings
10
Portfolio Value Over Time
2024-03
2024-06
2024-09
2024-12
2025-03
2025-06
2025-09
2025-12
Biggest QoQ Changes
Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.
| Action | Issuer | Ticker / CUSIP | Δ Shares | Flow ($) | Price Effect |
|---|---|---|---|---|---|
| ADD | TAIWAN SEMICONDUCTOR MFG LTD | 874039100 | +3,074,412 | +$934.3M | +$1.4M |
| REDUCE | NVIDIA CORPORATION | NVDA | -2,742,800 | -$511.5M | -$820,400 |
| ADD | ISHARES TR | 464287655 | +1,801,502 | +$443.5M | +$367,072 |
| REDUCE | APPLIED MATLS INC | 038222105 | -1,496,498 | -$388.3M | +$81.9M |
| REDUCE | PALANTIR TECHNOLOGIES INC | PLTR | -2,074,431 | -$368.7M | -$10.0M |
| REDUCE | MICRON TECHNOLOGY INC | MU | -1,408,597 | -$355.4M | +$119.7M |
| REDUCE | ISHARES TR | 464287432 | -2,894,171 | -$252.3M | -$6.7M |
| REDUCE | VERTIV HOLDINGS CO | VRT | -1,176,225 | -$190.6M | +$14.1M |
| ADD | NETFLIX INC | NFLX | +2,025,698 | +$189.9M | -$2,711 |
| REDUCE | WESTERN DIGITAL CORP | WDC | -1,063,800 | -$183.3M | +$68.4M |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 20252,826 pos · $53.76B
- 13F HOLDINGS REPORTQ/E Sep 20252,952 pos · $68.26B
- 13F HOLDINGS REPORT (Amended)Q/E Sep 20252,968 pos · $53.74B
- 13F HOLDINGS REPORTQ/E Jun 20252,969 pos · $54.06B
- 13F HOLDINGS REPORTQ/E Mar 20252,983 pos · $44.56B
- 13F HOLDINGS REPORTQ/E Dec 20243,099 pos · $47.64B
- 13F NOTICEQ/E Sep 2024— pos · $0
- 13F NOTICEQ/E Jun 2024— pos · $0
- 13F NOTICEQ/E Mar 2024— pos · $0
- 13F NOTICEQ/E Dec 2023— pos · $0
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | INVESCO QQQ TR | IVZ | 2,703,900 | $1.66B | 6.18% |
| 2 | INVESCO QQQ TR | IVZ | 2,480,300 | $1.52B | 5.67% |
| 3 | TESLA INC | TSLA | 3,268,500 | $1.47B | 5.47% |
| 4 | NVIDIA CORPORATION | NVDA | 7,512,200 | $1.40B | 5.22% |
| 5 | ALPHABET INC | GOOG | 3,323,600 | $1.04B | 3.87% |
| 6 | TAIWAN SEMICONDUCTOR MFG LTD | 874039100 | 3,130,500 | $951.3M | 3.54% |
| 7 | NVIDIA CORPORATION | NVDA | 4,846,400 | $903.9M | 3.37% |
| 8 | META PLATFORMS INC | META | 1,339,500 | $884.2M | 3.29% |
| 9 | TESLA INC | TSLA | 1,780,000 | $800.5M | 2.98% |
| 10 | META PLATFORMS INC | META | 1,144,700 | $755.6M | 2.81% |
| 11 | APPLE INC | AAPL | 2,599,000 | $706.6M | 2.63% |
| 12 | ALPHABET INC | GOOG | 1,888,300 | $591.0M | 2.20% |
| 13 | COREWEAVE INC | CRWV | 8,113,900 | $581.0M | 2.16% |
| 14 | COREWEAVE INC | CRWV | 7,567,000 | $541.9M | 2.02% |
| 15 | BROADCOM INC | AVGO | 1,437,200 | $497.4M | 1.85% |
| 16 | SELECT SECTOR SPDR TR | 81369Y506 | 10,818,600 | $483.7M | 1.80% |
| 17 | MICRON TECHNOLOGY INC | MU | 1,634,900 | $466.6M | 1.74% |
| 18 | ISHARES TR | 464287655 | 1,888,900 | $465.0M | 1.73% |
| 19 | MICRON TECHNOLOGY INC | MU | 1,581,300 | $451.3M | 1.68% |
| 20 | FIRST SOLAR INC | FSLR | 1,717,200 | $448.6M | 1.67% |