CTFAX — Columbia Thermostat Fund
Data updated: 2026-05-28
CTFAX — Columbia Thermostat Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. United States Multi-Cap / All-Cap Blend / Core Equity · $1.26B AUM · 0.87% expense ratio · 12.4% 1-yr return. From SEC regulatory filings.
CTFAX Fund Overview
CTFAX — Columbia Thermostat Fund is a US mutual fund managed by Columbia Acorn Trust, categorised as United States Multi-Cap / All-Cap Blend / Core Equity. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: Columbia Acorn Trust
- Category: United States Multi-Cap / All-Cap Blend / Core Equity
- Assets under management: $1.26B
- 1-year return: 12.4%
- Ticker: CTFAX
- SEC CIK: 0000002110
- SEC series ID: S000009189
- Share class ID: C000024974
CTFAX Holdings
Top 10 holdings of Columbia Thermostat Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Columbia Intermediate Bond Fund | 16.10% |
| Columbia Select Corporate Income Fund | 12.88% |
| Columbia US Treasury Index Fund | 12.88% |
| Columbia Quality Income Fund | 9.69% |
| Columbia Large Cap Enhanced Core Fund | 8.72% |
| Columbia Contrarian Core Fund | 8.70% |
| Columbia Funds Series Trust - Co. | 6.97% |
| Columbia Research Enhanced Core ETF | 6.95% |
| Columbia Diversified Fixed Income Allocation ETF | 6.44% |
| Columbia High Yield Bond Fund | 6.42% |
CTFAX Portfolio Allocation
Asset-class allocation of Columbia Thermostat Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 99.3% |
| Cash & Equivalents | 0.5% |
CTFAX Performance
Total returns for CTFAX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | -1.7% |
| 1 year | 12.4% |
| 3 years (annualised) | 9.1% |
| 5 years (annualised) | 4.1% |
CTFAX Risk Information
Risk metrics for CTFAX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 5.3%
CTFAX Costs and Fees
CTFAX costs about $87 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.87%
- Gross expense ratio: 0.87%
- Portfolio turnover: 84%
- Brokerage commissions: 1.73 bps of average net assets (SEC N-CEN)
CTFAX Cashflows
Over the 12 months to 2026-03, Columbia Thermostat Fund had net outflows of $859.85K, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-03 | $351.81K |
| 2026-02 | −$5.58M |
| 2026-01 | −$10.55M |
| 2025-12 | $24.04M |
| 2025-11 | −$6.38M |
| 2025-10 | $1.87M |
CTFAX Debt Constituents
No individual debt constituents are reported in Columbia Thermostat Fund's latest SEC N-PORT filing.
CTFAX Prospectus and SEC Filings
Official Columbia Thermostat Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other United States Multi-Cap / All-Cap Blend / Core Equity funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.