NTIAX — Columbia Mid Cap Index Fund
Data updated: 2026-07-29
NTIAX — Columbia Mid Cap Index Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. United States Mid Cap Blend / Core Equity · $2.54B AUM · 0.45% expense ratio · 25.3% 1-yr return. From SEC regulatory filings.
NTIAX Fund Overview
NTIAX — Columbia Mid Cap Index Fund is a US mutual fund managed by Columbia Funds Series Trust, categorised as United States Mid 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 Funds Series Trust
- Category: United States Mid Cap Blend / Core Equity
- Assets under management: $2.54B
- 1-year return: 25.3%
- Ticker: NTIAX
- SEC CIK: 0001097519
- SEC series ID: S000010826
- Share class ID: C000030054
NTIAX Holdings
Top 10 holdings of Columbia Mid Cap Index Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Flex Ltd | 1.56% |
| Columbia Short Term Cash Fund | 1.28% |
| Twilio Inc | 0.81% |
| TechnipFMC PLC | 0.78% |
| Curtiss-Wright Corp | 0.77% |
| nVent Electric PLC | 0.76% |
| Sterling Infrastructure Inc | 0.74% |
| XPO Inc | 0.71% |
| Everpure Inc | 0.70% |
| Illumina Inc | 0.70% |
NTIAX Portfolio Allocation
Asset-class allocation of Columbia Mid Cap Index Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 98.6% |
| Cash & Equivalents | 1.3% |
| Derivatives | 0.1% |
NTIAX Performance
Total returns for NTIAX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 13.0% |
| 1 year | 25.3% |
| 3 years (annualised) | 17.0% |
| 5 years (annualised) | 7.6% |
NTIAX Risk Information
Risk metrics for NTIAX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 11.2%
NTIAX Costs and Fees
NTIAX costs about $45 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.45%
- Gross expense ratio: 0.59%
- Portfolio turnover: 16%
- Brokerage commissions: 0.43 bps of average net assets (SEC N-CEN)
NTIAX Cashflows
Over the 12 months to 2026-02, Columbia Mid Cap Index Fund had net outflows of $94.18M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-02 | −$39.63M |
| 2026-01 | −$42.43M |
| 2025-12 | $93.13M |
| 2025-11 | −$27.26M |
| 2025-10 | −$35.73M |
| 2025-09 | −$49.92M |
NTIAX Debt Constituents
No individual debt constituents are reported in Columbia Mid Cap Index Fund's latest SEC N-PORT filing.
NTIAX Prospectus and SEC Filings
Official Columbia Mid Cap Index Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other United States Mid 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.