TEXAS TREASURY SAFEKEEPING TRUST CO
BankCIK
1176347
Location
AUSTIN, TX
Portfolio Value
Small
$586,583,304
Diversification
Highly concentrated
Filing Date
Global Rank
#2,113
/ 8,232
▼ 123
Top Industry
Biotechnology
100.0%
3Y Alpha vs SPY
-0.5%
Period ended 2 months ago
Filed May 15, 2026 · 29d
21 quarters · since Jun 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
+74.5%
SPY
+76.5%
Annualised alpha
-0.5%
Max drawdown
−18.8%
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
3 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025Top Position
92.5%
−7.5 pts
Top 5
100.0%
0.0 pts
Top 10
100.0%
0.0 pts
HHI
8,616
Highly concentrated−1,384
Portfolio Trend
21 quarters · across all stocks
Sector Breakdown
As of Mar 31, 2026| Sector | % Portfolio | Value |
|---|---|---|
| Unclassified | 99.9% | $586,048,091 |
| Healthcare | 0.1% | $535,213 |
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 |
|---|---|---|---|---|---|
| SPY | Spdr S&P 500 ETF Trust | −227,444 | 834,569 | $542,753,603 | |
| No positions match the current search. | |||||
Sold Out
Positions the filer fully exitedNo qualifying positions this quarter.
3 positions ·
$586,583,304 total
· as of Mar 31, 2026
| Ticker | Company | Type | Shares | Value (USD) | % of Portfolio | History |
|---|---|---|---|---|---|---|
| SPY |
Spdr S&P 500 ETF Trust
|
Reduced | 834,569 | $542,753,603 | 92.53% | |
| GLD |
Spdr Gold Trust
|
NEW | 100,617 | $43,294,488 | 7.38% | |
| RYTM |
Rhythm Pharmaceuticals, Inc.
Healthcare
|
NEW | 6,154 | $535,213 | 0.09% |