TBIWX — Nuveen Bond Index Fund
Data updated: 2026-08-27
TBIWX — Nuveen Bond Index Fund. Long Total / Aggregate Bond · $23.03B AUM · 0.00% expense ratio. Holdings, fees, performance and SEC filings.
TBIWX Fund Overview
TBIWX — Nuveen Bond Index Fund is a US mutual fund managed by Tiaa-Cref Funds, categorised as Long Total / Aggregate Bond. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: Tiaa-Cref Funds
- Category: Long Total / Aggregate Bond
- Assets under management: $23.03B
- 1-year return: 3.5%
- Ticker: TBIWX
- SEC CIK: 0001084380
- SEC series ID: S000026500
- Share class ID: C000202762
TBIWX Holdings
Top 10 holdings of Nuveen Bond Index Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| United States Treasury Note/Bond | 0.82% |
| United States Treasury Note/Bond | 0.81% |
| United States Treasury Note/Bond | 0.71% |
| US Treasury N/b | 0.71% |
| United States Treasury Note/Bond | 0.69% |
| United States Treasury Note/Bond | 0.59% |
| United States Treasury Note/Bond | 0.59% |
| US Treasury N/b | 0.56% |
| United States Treasury Note/Bond | 0.53% |
| US Treasury N/b | 0.52% |
TBIWX Portfolio Allocation
Asset-class allocation of Nuveen Bond Index Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 73.8% |
| Securitized | 25.3% |
| Cash & Equivalents | 0.9% |
TBIWX Performance
Total returns for TBIWX (as of 2026-09-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 0.8% |
| 1 year | 3.5% |
| 3 years (annualised) | 4.1% |
| 5 years (annualised) | 0.0% |
TBIWX Risk Information
Risk metrics for TBIWX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 3.0%
TBIWX Costs and Fees
TBIWX costs about $0 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.00%
- Gross expense ratio: 0.07%
- Portfolio turnover: 28%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
TBIWX Cashflows
Over the 12 months to 2026-06, Nuveen Bond Index Fund had net outflows of $1.91B, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-06 | $761.03M |
| 2026-05 | $1.15B |
| 2026-04 | −$196.39M |
| 2026-03 | −$478.94M |
| 2026-02 | $362.28M |
| 2026-01 | −$699.40M |
TBIWX Debt Constituents
Largest debt holdings of Nuveen Bond Index Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| United States Treasury Note/Bond | 0.82% |
| United States Treasury Note/Bond | 0.81% |
| United States Treasury Note/Bond | 0.71% |
| US Treasury N/b | 0.71% |
| United States Treasury Note/Bond | 0.69% |
| United States Treasury Note/Bond | 0.59% |
| United States Treasury Note/Bond | 0.59% |
| US Treasury N/b | 0.56% |
| United States Treasury Note/Bond | 0.53% |
| US Treasury N/b | 0.52% |
TBIWX Prospectus and SEC Filings
Official Nuveen Bond Index Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2026-07-28
- Prospectus (485BPOS) — filed 2025-07-28
- Prospectus (485BPOS) — filed 2024-07-25
- Portfolio holdings (N-PORT) — filed 2026-08-27
- Portfolio holdings (N-PORT) — filed 2026-05-28
- Portfolio holdings (N-PORT) — filed 2026-02-26
- Annual census (N-CEN) — filed 2026-06-12
- Annual census (N-CEN) — filed 2025-06-13
Related Funds
Other Long Total / Aggregate Bond 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.