TYNDALL CAPITAL PARTNERS L P
CIK
1219314
Location
New York, NY
Portfolio Value
Micro
$451,594
Diversification
Highly concentrated
Filing Date
Global Rank
#7,948
/ 7,991
▼ 1
Top Industry
Biotechnology
100.0%
3Y Alpha vs SPY
-2.3%
Period ended 12 months ago
Filed Aug 14, 2025 · 10mo
8 quarters · since Sep 2023
Clone Performance
Nov 2023–Jun 2026 · vs SPYHypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.
Cloned portfolio
+62.5%
SPY
+70.5%
Annualised alpha
-2.3%
Max drawdown
−83.0%
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
1 positions · as of Jun 30, 2025 · Δ vs Mar 31, 2025Top Position
100.0%
0.0 pts
Top 5
100.0%
0.0 pts
Top 10
100.0%
0.0 pts
HHI
10,000
Highly concentrated0
Portfolio Trend
8 quarters · across all stocks
Sector Breakdown
As of Jun 30, 2025| Sector | % Portfolio | Value |
|---|---|---|
| Healthcare | 100.0% | $451,594 |
Last Quarter's Activity
Export CSVAdded To
Positions the filer increasedNo qualifying positions this quarter.
Trimmed
Positions the filer reduced
1 positions
| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| CYCN | Cyclerion Therapeutics, Inc. | −9,590 | 155,187 | $451,594 | |
| No positions match the current search. | |||||
New Positions
Positions the filer opened this quarterNo qualifying positions this quarter.
Sold Out
Positions the filer fully exitedNo qualifying positions this quarter.
1 positions ·
$451,594 total
· as of Jun 30, 2025
| Ticker | Company | Type | Shares | Value (USD) | % of Portfolio | History |
|---|---|---|---|---|---|---|
| CYCN |
Cyclerion Therapeutics, Inc.
Healthcare
|
Reduced | 155,187 | $451,594 | 100.00% |