CTSOX — Calamos Timpani Small Cap Growth Fund
Data updated: 2026-06-26
CTSOX — Calamos Timpani Small Cap Growth Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. United States Small Cap Growth Equity · $742.34M AUM · 0.95% expense ratio · 70.0% 1-yr return. From SEC regulatory filings.
CTSOX Fund Overview
CTSOX — Calamos Timpani Small Cap Growth Fund is a US mutual fund managed by Calamos Investment Trust/il, categorised as United States Small Cap Growth Equity. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: Calamos Investment Trust/il
- Category: United States Small Cap Growth Equity
- Assets under management: $742.34M
- 1-year return: 70.0%
- Ticker: CTSOX
- SEC CIK: 0000826732
- SEC series ID: S000065224
- Share class ID: C000211097
CTSOX Holdings
Top 10 holdings of Calamos Timpani Small Cap Growth Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Lumentum Holdings Inc | 5.03% |
| Dave Inc | 3.02% |
| Ciena Corp | 2.75% |
| Rush Street Interactive Inc | 2.73% |
| SiTime Corp | 2.67% |
| Diodes Inc | 2.53% |
| Amprius Technologies Inc | 2.52% |
| NPK International Inc | 2.45% |
| Viavi Solutions Inc | 2.15% |
| Mama's Creations Inc | 2.12% |
CTSOX Portfolio Allocation
Asset-class allocation of Calamos Timpani Small Cap Growth Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 98.8% |
CTSOX Performance
Total returns for CTSOX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 21.6% |
| 1 year | 70.0% |
| 3 years (annualised) | 32.5% |
| 5 years (annualised) | 7.2% |
CTSOX Risk Information
Risk metrics for CTSOX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 23.1%
CTSOX Costs and Fees
CTSOX costs about $95 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.95%
- Gross expense ratio: 0.99%
- Portfolio turnover: 195%
- Brokerage commissions: 31.86 bps of average net assets (SEC N-CEN)
CTSOX Cashflows
Over the 12 months to 2026-04, Calamos Timpani Small Cap Growth Fund had net inflows of $104.22M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-04 | −$3.73M |
| 2026-03 | −$12.05M |
| 2026-02 | $410.09K |
| 2026-01 | $755.92K |
| 2025-12 | $42.95M |
| 2025-11 | $25.66M |
CTSOX Debt Constituents
No individual debt constituents are reported in Calamos Timpani Small Cap Growth Fund's latest SEC N-PORT filing.
CTSOX Prospectus and SEC Filings
Official Calamos Timpani Small Cap Growth Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other United States Small Cap Growth 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.