Main Management LLC
CIK
1583092
Location
SAN FRANCISCO, CA
Portfolio Value
Small
$201,723,804
Diversification
Highly concentrated
Filing Date
Global Rank
#3,835
/ 8,232
▼ 60
3Y Alpha vs SPY
+1.6%
Period ended 2 months ago
Filed May 15, 2026 · 30d
25 quarters · since Mar 2020
Clone Performance
Jun 2023–Jun 2026 · vs SPYHypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.
Cloned portfolio
+84.5%
SPY
+76.3%
Annualised alpha
+1.8%
Max drawdown
−20.2%
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
5 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025Top Position
77.5%
+8.7 pts
Top 5
100.0%
+0.0 pts
Top 10
100.0%
0.0 pts
HHI
6,504
Highly concentrated+807
Portfolio Trend
25 quarters · across all stocks
Sector Breakdown
As of Mar 31, 2026| Sector | % Portfolio | Value |
|---|---|---|
| Unclassified | 100.0% | $201,723,804 |
Last Quarter's Activity
Export CSVAdded To
Positions the filer increased
1 positions
| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| SPY | Spdr S&P 500 ETF Trust | +3,982 | 240,518 | $156,418,476 | |
| No positions match the current search. | |||||
Trimmed
Positions the filer reduced
1 positions
| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| QQQ | Invesco Qqq Trust, Series 1 | −40,157 | 77,497 | $44,729,718 | |
| No positions match the current search. | |||||
New Positions
Positions the filer opened this quarter
1 positions
| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| BTC | Grayscale Bitcoin Mini Trust ETF | 1,729 | $51,852 | |
| No positions match the current search. | ||||
Sold Out
Positions the filer fully exited
4 positions
5 positions ·
$201,723,804 total
· as of Mar 31, 2026
| Ticker | Company | Type | Shares | Value (USD) | % of Portfolio | History |
|---|---|---|---|---|---|---|
| SPY |
Spdr S&P 500 ETF Trust
|
Added | 240,518 | $156,418,476 | 77.54% | |
| QQQ |
Invesco Qqq Trust, Series 1
|
Reduced | 77,497 | $44,729,718 | 22.17% | |
| GLD |
Spdr Gold Trust
|
Held | 1,166 | $501,718 | 0.25% | |
| BTC |
Grayscale Bitcoin Mini Trust ETF
|
NEW | 1,729 | $51,852 | 0.03% | |
| IAU |
Ishares Gold Trust
|
Held | 250 | $22,040 | 0.01% |