Tortoise Investment Management, LLC
Long book
$1.21B
Q1 2026
Positions
245
Top-10 weight
35%
concentration
Last quarter
+8.4%
SPY +14.8%
Turnover
14%
of book per quarter
Strategy in plain words
auto-generated from filingsTortoise Investment Management, LLC is a wealth-management firm allocating client money, running a $1.21B US long book across 245 positions.
The portfolio is moderately concentrated (top 10 ≈ 35% of the book). Turnover is modest: positions are typically held for years. Current anchor positions: ISHARES CORE S&P 500 ETF, ISHARES 0-5 YEAR TIPS BOND E, AVANTIS U.S. EQUITY ETF, BLACKROCK 2030 MUNI TRGT TRM, MORTGAGE-BACKED SECURITIES.
Over the last 9 quarters its long book ran on average 1.3pp per quarter behind the S&P 500, beating the index in 3 of 9 quarters. Its holdings are mechanical (indexing / client flows), so position changes carry no stock-picking signal.
Implied long-book return vs S&P 500
methodology: positions priced quarterly, no shorts/options Fund long book S&P 500
Q1 2024
+1.7%
Q2 2024
+6.4%
Q3 2024
-1.5%
Q4 2024
+0.0%
Q1 2025
+6.2%
Q2 2025
+6.0%
Q3 2025
+2.1%
Q4 2025
-0.3%
Q1 2026
+8.4%
Sector allocation
Technology 37%
Financials 33%
Industrials 8%
Consumer discretionary 7%
Healthcare 5%
Materials 4%
Energy 2%
Consumer staples 1%
Long book by quarter
What does Tortoise Investment own?
Q1 2026 13F| Company | Sector | Shares | Value | % of book | Change |
|---|---|---|---|---|---|
| AAPL APPLE INC | Technology | 50.8K | $12.9M | 1.1% | -4.4% |
| BRK/B BERKSHIRE HATHAWAY INC-CL B | Financials | 17.7K | $8.5M | 0.7% | -4.5% |
| PGR PROGRESSIVE CORP | Financials | 29.7K | $5.9M | 0.5% | -1.4% |
| MSFT MICROSOFT CORP | Technology | 9.5K | $3.5M | 0.3% | -0.8% |
| LTBR LIGHTBRIDGE CORP | Materials | 215.9K | $2.3M | 0.2% | Held |
| WULF TERAWULF INC | Financials | 153.2K | $2.2M | 0.2% | 0.0% |
| JPM JPMORGAN CHASE & CO | Financials | 7.3K | $2.2M | 0.2% | -5.9% |
| NVDA NVIDIA CORP | Technology | 9.4K | $1.6M | 0.1% | +14.0% |
13F filing history
| Period | Form | Filed | Entries | Reported value | Flags | Source |
|---|---|---|---|---|---|---|
| Q1 2026 | 13F-HR | May 5, 2026 | 252 | $1.21B | canonical | SEC ↗ |
| Q4 2025 | 13F-HR | Feb 6, 2026 | 240 | $1.14B | canonical | SEC ↗ |
| Q3 2025 | 13F-HR | Nov 13, 2025 | 1569 | $1.12B | canonical | SEC ↗ |
| Q2 2025 | 13F-HR | Aug 8, 2025 | 1311 | $1.05B | canonical | SEC ↗ |
| Q1 2025 | 13F-HR/ARESTATEMENT | Aug 7, 2025 | 831 | $960.3M | canonical | SEC ↗ |
| Q1 2025 | 13F-HR | May 14, 2025 | 831 | $960.3M | SEC ↗ | |
| Q4 2024 | 13F-HR/ARESTATEMENT | Aug 7, 2025 | 873 | $947.2M | canonical | SEC ↗ |
| Q4 2024 | 13F-HR | Feb 7, 2025 | 873 | $947.2M | SEC ↗ | |
| Q3 2024 | 13F-HR/ARESTATEMENT | Aug 7, 2025 | 892 | $957.2M | canonical | SEC ↗ |
| Q3 2024 | 13F-HR | Nov 13, 2024 | 892 | $957.2M | SEC ↗ | |
| Q2 2024 | 13F-HR/ARESTATEMENT | Aug 7, 2025 | 894 | $876.9M | canonical | SEC ↗ |
| Q2 2024 | 13F-HR | Aug 1, 2024 | 894 | $876.9M | SEC ↗ | |
| Q1 2024 | 13F-HR/ARESTATEMENT | Aug 7, 2025 | 876 | $823.7M | canonical | SEC ↗ |
| Q1 2024 | 13F-HR | May 9, 2024 | 876 | $823.7M | SEC ↗ |