ECP ControlCo, LLC
CIK
1707921
Location
SUMMIT, NJ
Portfolio Value
Mid
$6,340,634,818
Diversification
Highly concentrated
Filing Date
Global Rank
#565
/ 8,604
▲ 3708
· as of Mar 2026
Top Industry
Utilities - Independent Power Producers
97.1%
3Y Alpha vs SPY
-28.1%
Period ended 3 months ago
Filed May 15, 2026 · 54d
25 quarters · since Mar 2020
Clone Performance
Jul 2023–Jul 2026 · vs SPYHypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.
Cloned portfolio
-21.3%
SPY
+76.5%
Annualised alpha
-28.5%
Max drawdown
−30.9%
Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.
Portfolio Concentration
4 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025Top Position
97.1%
+41.2 pts
Top 5
100.0%
0.0 pts
Top 10
100.0%
0.0 pts
HHI
9,430
Highly concentrated+5,438
Portfolio Trend
25 quarters · across all stocks
Sector Breakdown
As of Mar 31, 2026| Sector | % Portfolio | Value |
|---|---|---|
| Utilities | 99.1% | $6,280,891,257 |
| Communication Services | 0.8% | $53,308,559 |
| Energy | 0.1% | $6,435,002 |
Last Quarter's Activity
Export CSVAdded To
Positions the filer increasedNo qualifying positions this quarter.
Trimmed
Positions the filer reducedNo qualifying positions this quarter.
New Positions
Positions the filer opened this quarter
1 positions
| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| CEG | Constellation Energy Corp | 22,043,724 | $6,155,709,927 | |
| No positions match the current search. | ||||
Sold Out
Positions the filer fully exited
1 positions
| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| XIFR | XPLR Infrastructure, LP | 4,500,000 | $45,000,000 | |
| No positions match the current search. | ||||
4 positions ·
$6,340,634,818 total
· as of Mar 31, 2026
| Ticker | Company | Type | Shares | Value (USD) | % of Portfolio | History |
|---|---|---|---|---|---|---|
| CEG |
Constellation Energy Corp
Utilities
|
NEW | 22,043,724 | $6,155,709,927 | 97.08% | |
| PCG |
PG&E Corp
Utilities
|
Held | 7,124,720 | $125,181,330 | 1.97% | |
| SHEN |
Shenandoah Telecommunications Co/Va/
Communication Services
|
Held | 3,457,105 | $53,308,559 | 0.84% | |
| CLNE |
Clean Energy Fuels Corp.
Energy
|
Held | 2,594,759 | $6,435,002 | 0.10% |