# EDGAR Filing Document

**Accession Number:** 0000842790
**File Stem:** 0001752724-23-017989
**Filing Date:** 2023-1
**Character Count:** 21015
**Document Hash:** 85a68bfeb831de20165d05cd8b878fea
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001752724-23-017989.hdr.sgml**: 20230130

**ACCESSION NUMBER**: 0001752724-23-017989

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20221130

**FILED AS OF DATE**: 20230130

**DATE AS OF CHANGE**: 20230130

**PERIOD START**: 20230228

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** AIM INVESTMENT SECURITIES FUNDS (INVESCO INVESTMENT SECURITIES FUNDS)
- **CENTRAL INDEX KEY:** 0000842790
- **IRS NUMBER:** 760343427
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 0228

**FILING VALUES:**
- **FORM TYPE:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-05686
- **FILM NUMBER:** 23567174

**BUSINESS ADDRESS:**
- **STREET 1:** 11 GREENWAY PLAZA
- **STREET 2:** SUITE 1000
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77046
- **BUSINESS PHONE:** 7136261919

**MAIL ADDRESS:**
- **STREET 1:** 11 GREENWAY PLAZA
- **STREET 2:** SUITE 1000
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77046

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** AIM INVESTMENT SECURITIES FUNDS
- **DATE OF NAME CHANGE:** 20000921

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** AIM INVESTMENT SECURITIES FUNDS INC
- **DATE OF NAME CHANGE:** 19920703

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** AIM PRIME RATE PREMIUM INCOME FUND INC
- **DATE OF NAME CHANGE:** 19910320

## Series and Classes Contracts Data

### INVESCO Short Duration Inflation Protected Fund (Series ID: S000000252)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000000606 | Class A2     | SHTIX           |
| C000000607 | Class A      | LMTAX           |
| C000023119 | CLASS R5     | ALMIX           |
| C000071213 | Class Y      | LMTYX           |
| C000164285 | Class R6     |  |

## Nport-Ex

**Schedule of Investments** 

*November 30, 2022* 

*(Unaudited)* 

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **Interest**<br> **Rate** | **Maturity<br>Date** | **Principal<br>Amount<br>(000)** | **Value** |
|  **U.S. Treasury Securities–99.97%** |  |  |  |  |
|  **U.S. Treasury Inflation — Indexed Notes–99.97%<sup>(a)</sup>**  |  |  |  |  |
|  U.S. Treasury Inflation - Indexed Notes | 0.62% | 01/15/2024 | $45351 | $44464447 |
|  U.S. Treasury Inflation - Indexed Notes | 0.50% | 04/15/2024 | 33000 | 32181257 |
|  U.S. Treasury Inflation - Indexed Notes | 0.13% | 07/15/2024 | 44530 | 43226442 |
|  U.S. Treasury Inflation - Indexed Notes | 0.13% | 10/15/2024 | 35317 | 34159431 |
|  U.S. Treasury Inflation - Indexed Notes | 0.25 - 2.37% | 01/15/2025 | 83069 | 81846803 |
|  U.S. Treasury Inflation - Indexed Notes | 0.13% | 04/15/2025 | 35441 | 33981732 |
|  U.S. Treasury Inflation - Indexed Notes | 0.37% | 07/15/2025 | 44518 | 43006331 |
|  U.S. Treasury Inflation - Indexed Notes | 0.13% | 10/15/2025 | 34091 | 32688821 |
|  U.S. Treasury Inflation - Indexed Notes | 0.62 - 2.00% | 01/15/2026 | 72043 | 70805836 |
|  U.S. Treasury Inflation - Indexed Notes | 0.13% | 04/15/2026 | 39239 | 37213917 |
|  U.S. Treasury Inflation - Indexed Notes | 0.13% | 07/15/2026 | 39669 | 37740292 |
|  U.S. Treasury Inflation - Indexed Notes | 0.13% | 10/15/2026 | 36095 | 34270128 |
|  U.S. Treasury Inflation - Indexed Notes | 0.37 - 2.37% | 01/15/2027 | 62151 | 60958560 |
|  U.S. Treasury Inflation - Indexed Notes | 0.13% | 04/15/2027 | 35957 | 33895659 |
|  U.S. Treasury Inflation - Indexed Notes | 0.37% | 07/15/2027 | 38982 | 37219612 |
|  U.S. Treasury Inflation - Indexed Notes | 1.62% | 10/15/2027 | 18254 | 18463962 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total U.S. Treasury Securities (Cost $718,645,412) |  |  |  | 676123230 |
|  |  |  | **Shares** |  |
|  **Money Market Funds–0.39%** |  |  |  |  |
|  Invesco Government & Agency Portfolio, Institutional Class, 3.73%<sup>(b)(c)</sup>  |  |  | 920573 | 920573 |
|  Invesco Liquid Assets Portfolio, Institutional Class, 3.95%<sup>(b)(c)</sup>  |  |  | 657355 | 657552 |
|  Invesco Treasury Portfolio, Institutional Class, 3.76%<sup>(b)(c)</sup>  |  |  | 1052084 | 1052084 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total Money Market Funds (Cost $2,630,209) |  |  |  | 2630209 |
|  TOTAL INVESTMENTS IN SECURITIES–100.36% (Cost $721,275,621) |  |  |  | 678753439 |
|  OTHER ASSETS LESS LIABILITIES–(0.36)% |  |  |  | (2411243) |
|  NET ASSETS–100.00% |  |  |  | $676342196 |

---

Notes to Schedule of Investments:

<sup>(a)</sup> Principal amount of security and interest payments are adjusted for inflation. 

<sup>(b)</sup> Affiliated issuer. The issuer and/or the Fund is a wholly-owned subsidiary of Invesco Ltd., or is affiliated by having an investment adviser that is under common control of Invesco Ltd. The table below shows the Fund's transactions in, and earnings from, its investments in affiliates for the nine months ended November 30, 2022. 

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| | **Value<br>February 28,**<br> **2022** | **Purchases**<br> **at Cost** | **Proceeds**<br> **from Sales** | **Change in<br>Unrealized<br>Appreciation** | **Realized<br>Gain** | **Value<br>November 30,**<br> **2022** | **Dividend**<br> **Income** |
| **Investments in Affiliated Money Market Funds:** | | | | | | | |
|  Invesco Government & Agency Portfolio, Institutional Class | $516175 | $38670814 | $(38266416) | $- | $- | $920573 | $2716 |
|  Invesco Liquid Assets Portfolio, Institutional Class | 368666 | 27622010 | (27333202) | - | 78 | 657552 | 1985 |
|  Invesco Treasury Portfolio, Institutional Class | 589914 | 44195217 | (43733047) | - | - | 1052084 | 2928 |
|  Total | $1474755 | $110488041 | $(109332665) | $- | $78 | $2630209 | $7629 |

---

<sup>(c)</sup> The rate shown is the 7-day SEC standardized yield as of November 30, 2022.

The valuation policy and a listing of other significant accounting policies are available in the most recent shareholder report.

See accompanying notes which are an integral part of this schedule.

**Invesco Short Duration Inflation Protected Fund**

------

**Notes to Quarterly Schedule of Portfolio Holdings** 

*November 30, 2022* 

*(Unaudited)* 

**NOTE 1—Additional Valuation Information** 

Generally Accepted Accounting Principles ("GAAP") defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date, under current market conditions. GAAP establishes a hierarchy that prioritizes the inputs to valuation methods, giving the highest priority to readily available unadjusted quoted prices in an active market for identical assets (Level 1) and the lowest priority to significant unobservable inputs (Level 3), generally when market prices are not readily available. Based on the valuation inputs, the securities or other investments are tiered into one of three levels. Changes in valuation methods may result in transfers in or out of an investment's assigned level:

---

| | |
|:---|:---|
| Level 1 - | Prices are determined using quoted prices in an active market for identical assets. |
| Level 2 - | Prices are determined using other significant observable inputs. Observable inputs are inputs that other market participants may use in pricing a security. These may include quoted prices for similar securities, interest rates, prepayment speeds, credit risk, yield curves, loss severities, default rates, discount rates, volatilities and others. |
| Level 3 - | Prices are determined using significant unobservable inputs. In situations where quoted prices or observable inputs are unavailable (for example, when there is little or no market activity for an investment at the end of the period), unobservable inputs may be used. Unobservable inputs reflect Invesco Advisers, Inc.'s assumptions about the factors market participants would use in determining fair value of the securities or instruments and would be based on the best available information. |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The following is a summary of the tiered valuation input levels, as of November 30, 2022. The level assigned to the securities valuations may not be an indication of the risk or liquidity associated with investing in those securities. Because of the inherent uncertainties of valuation, the values reflected in the financial statements may materially differ from the value received upon actual sale of those investments.

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | **Level 1** | **Level 2** | **Level 3** | **Total** |
|  **Investments in Securities** |  |  |  |  |
|  U.S. Treasury Securities | $– | $676123230 | $– | $676123230 |
|  Money Market Funds | 2630209 |  | &nbsp;&nbsp;&nbsp;&nbsp;– | 2630209 |
| &nbsp;&nbsp;&nbsp;&nbsp; **Total Investments** | $2630209 | $676123230 | $– | $678753439 |

---

**Invesco Short Duration Inflation Protected Fund**

## Form NPORT-P: Monthly Portfolio Investments Report

### NPORT-P: Part A: General Information

**Item A.1. Information about the Registrant.**

- **a. Name of Registrant:** AIM Investment Securities Funds (Invesco Investment Securities Funds)

- **b. Investment Company Act file number:** 811-05686

- **c. CIK number of Registrant:** 0000842790

- **d. LEI of Registrant:** G61U5I6LJJEX0O3SU057

- **e. Address and telephone number of Registrant.**

  - **Street Address 1:** 11 Greenway Plaza

  - **City:** Houston

  - **State:** TX

  - **Foreign country:** US

  - **Zip / Postal Code:** 77046-1173

  - **Telephone number:** 800-959-4246

**Item A.2. Information about the Series.**

- **a. Name of Series:** Invesco Short Duration Inflation Protected Fund

- **b. EDGAR series identifier (if any):** S000000252

- **c. LEI of Series:** 549300V8T0KQ1PWXMT14

**Item A.3. Reporting period.**

- **a. Date of fiscal year-end:** 2023-02-28

- **b. Date as of which information is reported:** 2022-11-30

**Item A.4. Final filing**

Does the Fund anticipate that this will be its final filing on Form N-PORT? **No**

### Fund Information

**Total Assets:** $677731437.11

**Total Liabilities:** $628315.48

**Net Assets:** $677103121.63

**Currency Risk Metrics (dv01):**

- 

**Credit Spread Risk - Investment Grade (dv01):**

- **3-Month:** 0.00000000 | **1-Year:** 0.00000000 | **5-Year:** 0.00000000 | **10-Year:** 0.00000000 | **30-Year:** 0.00000000

**Credit Spread Risk - Non-Investment Grade (dv01):**

- **3-Month:** 0.00000000 | **1-Year:** 0.00000000 | **5-Year:** 0.00000000 | **10-Year:** 0.00000000 | **30-Year:** 0.00000000

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000000606 | -3.47%               | 1.03%                | 0.41%                |
| Class ID C000023119 | -3.42%               | 1.03%                | 0.41%                |
| Class ID C000164285 | -3.42%               | 1.03%                | 0.41%                |
| Class ID C000000607 | -3.50%               | 1.03%                | 0.41%                |
| Class ID C000071213 | -3.52%               | 1.03%                | 0.51%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $-1771594.21             | $-22446400.59                              |
| Month 2  | $-637411.06              | $8111626.87                                |
| Month 3  | $-2507707.70             | $4684568.17                                |

### Schedule of Portfolio Investments

| Name                                           | Title                                                      | Identifiers                                   | Payoff Profile   | Asset Category   | Issuer Category   | Country   |   Balance | Units   | Value (USD)   | % of Net Assets   | Maturity Date   | Coupon Type   | Annualized Rate (%)   | Restricted?   |   Fair Value Level | Lending Status   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| U.S. Treasury Inflation - Indexed Notes        | U.S. Treasury Inflation - Indexed Notes                    | CUSIP: 912810PS1<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  21045756 | PA      | $21736835.37  | 3.21%             | 2027-01-15      | Fixed         | 2.38%                 | No            |                  2 | On Loan: No      |
| Invesco Treasury Portfolio                     | Invesco Treasury Portfolio, Institutional Class            | CUSIP: 825252406<br>LEI: 5493004B3TM8ZIDDDC39 | Long             | STIV             | RF                | US        |   1052083 | NS      | $1052083.43   | 0.16%             |  |  |  | No            |                  1 | On Loan: No      |
| U.S. Treasury Inflation - Indexed Notes        | U.S. Treasury Inflation - Indexed Notes                    | CUSIP: 91282CCA7<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  39068768 | PA      | $37052911.02  | 5.47%             | 2026-04-15      | Fixed         | 0.12%                 | No            |                  2 | On Loan: No      |
| U.S. Treasury Inflation - Indexed Notes        | U.S. Treasury Inflation - Indexed Notes                    | CUSIP: 912828YL8<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  35316766 | PA      | $34159431.46  | 5.04%             | 2024-10-15      | Fixed         | 0.12%                 | No            |                  2 | On Loan: No      |
| U.S. Treasury Inflation - Indexed Notes        | U.S. Treasury Inflation - Indexed Notes                    | CUSIP: 9128286N5<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  32764603 | PA      | $31951728.22  | 4.72%             | 2024-04-15      | Fixed         | 0.50%                 | No            |                  2 | On Loan: No      |
| U.S. Treasury Inflation - Indexed Notes        | U.S. Treasury Inflation - Indexed Notes                    | CUSIP: 91282CEJ6<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  35798885 | PA      | $33747013.75  | 4.98%             | 2027-04-15      | Fixed         | 0.12%                 | No            |                  2 | On Loan: No      |
| Invesco Government & Agency Portfolio          | Invesco Government & Agency Portfolio, Institutional Class | CUSIP: 825252885<br>LEI: 5493007T1J7WZ5QI1A47 | Long             | STIV             | RF                | US        |    920573 | NS      | $920573.00    | 0.14%             |  |  |  | No            |                  1 | On Loan: No      |
| U.S. Treasury Inflation - Indexed Notes        | U.S. Treasury Inflation - Indexed Notes                    | CUSIP: 912828B25<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  45097087 | PA      | $44215013.63  | 6.53%             | 2024-01-15      | Fixed         | 0.62%                 | No            |                  2 | On Loan: No      |
| U.S. Treasury Inflation - Indexed Notes        | U.S. Treasury Inflation - Indexed Notes                    | CUSIP: 912810FS2<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  25947540 | PA      | $26170821.74  | 3.87%             | 2026-01-15      | Fixed         | 2.00%                 | No            |                  2 | On Loan: No      |
| U.S. Treasury Inflation - Indexed Notes        | U.S. Treasury Inflation - Indexed Notes                    | CUSIP: 912828ZJ2<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  35441250 | PA      | $33981731.55  | 5.02%             | 2025-04-15      | Fixed         | 0.12%                 | No            |                  2 | On Loan: No      |
| U.S. Treasury Inflation - Indexed Notes        | U.S. Treasury Inflation - Indexed Notes                    | CUSIP: 91282CDC2<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  36095237 | PA      | $34270127.97  | 5.06%             | 2026-10-15      | Fixed         | 0.12%                 | No            |                  2 | On Loan: No      |
| United States Treasury Inflation Indexed Bonds | United States Treasury Inflation Indexed Bonds             | CUSIP: 91282CFR7<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  18254254 | PA      | $18463962.30  | 2.73%             | 2027-10-15      | Fixed         | 1.62%                 | No            |                  2 | On Loan: No      |
| U.S. Treasury Inflation - Indexed Notes        | U.S. Treasury Inflation - Indexed Notes                    | CUSIP: 912828V49<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  40920997 | PA      | $39045862.23  | 5.77%             | 2027-01-15      | Fixed         | 0.38%                 | No            |                  2 | On Loan: No      |
| U.S. Treasury Inflation - Indexed Notes        | U.S. Treasury Inflation - Indexed Notes                    | CUSIP: 91282CAQ4<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  33919525 | PA      | $32524293.77  | 4.80%             | 2025-10-15      | Fixed         | 0.12%                 | No            |                  2 | On Loan: No      |
| U.S. Treasury Inflation - Indexed Notes        | U.S. Treasury Inflation - Indexed Notes                    | CUSIP: 912810FR4<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  38093211 | PA      | $38413122.04  | 5.67%             | 2025-01-15      | Fixed         | 2.38%                 | No            |                  2 | On Loan: No      |
| Invesco Liquid Assets Portfolio                | Invesco Liquid Assets Portfolio                            | CUSIP: 825252729<br>LEI: 549300DC1W0JSX3QRC47 | Long             | STIV             | RF                | US        |    657355 | NS      | $657552.14    | 0.10%             |  |  |  | No            |                  1 | On Loan: No      |
| U.S. Treasury Inflation - Indexed Notes        | U.S. Treasury Inflation - Indexed Notes                    | CUSIP: 912828S50<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  39390133 | PA      | $37475231.78  | 5.53%             | 2026-07-15      | Fixed         | 0.12%                 | No            |                  2 | On Loan: No      |
| U.S. Treasury Inflation - Indexed Notes        | U.S. Treasury Inflation - Indexed Notes                    | CUSIP: 9128282L3<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  38738906 | PA      | $36987910.64  | 5.46%             | 2027-07-15      | Fixed         | 0.38%                 | No            |                  2 | On Loan: No      |
| U.S. Treasury Inflation - Indexed Notes        | U.S. Treasury Inflation - Indexed Notes                    | CUSIP: 912828WU0<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  44280187 | PA      | $42983761.92  | 6.35%             | 2024-07-15      | Fixed         | 0.12%                 | No            |                  2 | On Loan: No      |
| U.S. Treasury Inflation - Indexed Notes        | U.S. Treasury Inflation - Indexed Notes                    | CUSIP: 912828N71<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  45845264 | PA      | $44393101.75  | 6.56%             | 2026-01-15      | Fixed         | 0.62%                 | No            |                  2 | On Loan: No      |
| U.S. Treasury Inflation - Indexed Notes        | U.S. Treasury Inflation - Indexed Notes                    | CUSIP: 912828XL9<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  44517963 | PA      | $43006330.90  | 6.35%             | 2025-07-15      | Fixed         | 0.38%                 | No            |                  2 | On Loan: No      |
| U.S. Treasury Inflation - Indexed Notes        | U.S. Treasury Inflation - Indexed Notes                    | CUSIP: 912828H45<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  44379544 | PA      | $42843915.67  | 6.33%             | 2025-01-15      | Fixed         | 0.25%                 | No            |                  2 | On Loan: No      |

### Signature

**Date Signed:** 2022-12-30

**Name of Applicant:** AIM Investment Securities Funds (Invesco Investment Securities Funds)

**Signature:** Sheri Morris

**Name of Signer:** Sheri Morris

**Title:** President