PTUPX — PIMCO Total Return Fund IV
Data updated: 2026-08-31
PTUPX — PIMCO Total Return Fund IV. Long Total / Aggregate Bond · $357.99M AUM · 0.66% expense ratio. Holdings, fees, performance and SEC filings.
PTUPX Fund Overview
PTUPX — PIMCO Total Return Fund IV is a US mutual fund managed by PIMCO 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: PIMCO Funds
- Category: Long Total / Aggregate Bond
- Assets under management: $357.99M
- Ticker: PTUPX
- SEC CIK: 0000810893
- SEC series ID: S000032049
- Share class ID: C000099807
PTUPX Investment Objective and Strategy
PIMCO Total Return Fund IV describes its objective and strategy as follows, from its latest prospectus filed with the SEC by PIMCO Funds.
Investment objective
The Fund seeks maximum total return, consistent with preservation of capital and prudent investment management.
Principal investment strategy
"The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its net assets in a diversified portfolio of Fixed Income Instruments of varying maturities. ""Fixed Income Instruments"" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The average portfolio duration of this Fund normally varies within one and a half years (plus or minus) of the portfolio duration of the securities comprising the Bloomberg Barclays U.S. Aggregate Index, as calculated by Pacific Investment Management Company LLC (""PIMCO""), which as of May 31, 2018 was 5.70 years. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates.
The Fund may invest without limitation in the core sectors of the bond market including government bonds, mortgage bonds and corporate bonds and will generally seek to maintain positive exposure to these sectors. The Fund may invest only in investment grade securities of issuers that are rated at least Baa by Moody's Investors Service, Inc., (""Moody's""), or equivalently rated by Standard & Poor's Ratings Services (""S&P"") or Fitch, Inc. (""Fitch""), or if unrated, determined by PIMCO to be of comparable quality. The Fund may invest up to 15% of its total assets in securities denominated in foreign currencies, and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers, although the Fund will normally limit its foreign currency exposure (from non-U.S.
dollar-denominated securities or currencies) to 5% of its total assets. The Fund may invest up to 10% of its total assets in securities and instruments that are economically tied to emerging market countries (this limitation does not apply to investment grade sovereign debt denominated in the local currency with less than 1 year remaining to maturity, which means the Fund may invest, together with any other investments denominated in foreign currencies, up to 15% of its total assets in such instruments). The Fund may invest in certain derivative instruments, such as futures contracts or swap agreements, or in mortgage- or asset-backed securities, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales, including short exposures obtained using derivative instruments, up to 10% of its total assets.
The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The ""total return"" sought by the Fund consists of income earned on the Fund's investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a particular sector or security. The Fund may invest up to 10% of its total assets in preferred securities, convertible securities and other equity-related securities, although the Fund will not invest in common stock."
PTUPX Holdings
Top 10 holdings of PIMCO Total Return Fund IV by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Umbs, Tba | 14.06% |
| Pimco Prv Short Term Flt Iii | 4.55% |
| Freddie Mac | 3.70% |
| Umbs, Tba | 3.69% |
| United States Treasury | 3.03% |
| Umbs, Tba | 1.99% |
| Freddie Mac | 1.96% |
| Umbs, Tba | 1.88% |
| United States Treasury | 1.79% |
| Umbs, Tba | 1.53% |
PTUPX Portfolio Allocation
Asset-class allocation of PIMCO Total Return Fund IV by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 72.2% |
| Securitized | 47.5% |
| Cash & Equivalents | 5.7% |
| Real Estate | 0.5% |
| Equity | 0.3% |
| Derivatives | 0.2% |
PTUPX Performance
Total returns for PTUPX (as of 2026-10-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 0.8% |
| 1 year | 4.7% |
| 3 years (annualised) | 5.0% |
| 5 years (annualised) | 0.5% |
PTUPX Risk Information
Risk metrics for PTUPX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 3.4%
PTUPX Costs and Fees
PTUPX costs about $66 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.66%
- Gross expense ratio: 0.66%
- Portfolio turnover: 340%
- Brokerage commissions: 0.25 bps of average net assets (SEC N-CEN)
PTUPX Cashflows
Over the 12 months to 2026-06, PIMCO Total Return Fund IV had net inflows of $42.11M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-06 | $3.63M |
| 2026-05 | $3.25M |
| 2026-04 | $93.26K |
| 2026-03 | $1.92M |
| 2026-02 | $4.85M |
| 2026-01 | $1.73M |
PTUPX Debt Constituents
Largest debt holdings of PIMCO Total Return Fund IV by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| United States Treasury | 3.03% |
| United States Treasury | 1.79% |
| United States Treasury | 1.22% |
| United States Treasury | 1.14% |
| Beignet Investor LLC | 1.01% |
| United States Treasury | 0.97% |
| United States Treasury | 0.94% |
| United States Treasury | 0.78% |
| United States Treasury | 0.78% |
| Entergy Corp. | 0.75% |
PTUPX Prospectus and SEC Filings
Official PIMCO Total Return Fund IV filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2024-07-25
- Prospectus supplement (497) — filed 2024-08-01
- Prospectus supplement (497) — filed 2024-01-08
- Portfolio holdings (N-PORT) — filed 2026-08-31
- Portfolio holdings (N-PORT) — filed 2026-05-29
- Portfolio holdings (N-PORT) — filed 2026-03-02
- Annual census (N-CEN) — filed 2026-06-11
- 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.