# Duncker Streett & Co.

> Duncker Streett & Co. is an SEC-registered investment advisory firm in St. Louis, MO, registered since 2000, reporting $500 million to $1 billion in regulatory assets under management in its Form ADV filing dated May 8, 2026.

- CRD: 110828
- Filed as: DUNCKER STREETT & CO.
- Legal name: Duncker, Streett & Co., LLC
- Registration: SEC-registered investment adviser (status as filed: Approved)
- Location: St. Louis, MO
- Filing period: October 2026
- Form ADV filing dated: May 8, 2026
- SEC record (IAPD): https://adviserinfo.sec.gov/firm/summary/110828
- AdvisorCensus page: https://advisorcensus.com/firm/duncker-streett-and-co-st-louis-mo-110828

## Quick answers

**How is Duncker Streett & Co. compensated?**
On its Form ADV (Item 5.E, October 2026), Duncker Streett & Co. reports these compensation arrangements: a percentage of assets under its management; fixed fees (other than subscription fees).

**Where is Duncker Streett & Co. located?**
Duncker Streett & Co.'s principal office is in St. Louis, MO, according to its Form ADV.

**Is Duncker Streett & Co. registered with the SEC or a state?**
Duncker Streett & Co. is an SEC-registered investment advisory firm, registered since 2000. Status as filed: Approved. CRD 110828.

**How much does Duncker Streett & Co. manage?**
Duncker Streett & Co. reports $707,308,314 in regulatory assets under management in its Form ADV filing dated May 8, 2026 (98% discretionary).

**How have Duncker Streett & Co.'s assets and staff changed since 2021?**
In the Form ADV data for Duncker Streett & Co.: Regulatory assets under management: $590,311,828 in the October 2021 data and $707,308,314 in the October 2026 data, up 20%. Total employees: 5 in October 2021 and 5 in October 2026. Assets under management move with markets as well as with clients coming and going.

**What types of clients does Duncker Streett & Co. serve?**
By number of clients on Form ADV Item 5.D: high net worth individuals (94); individuals (other than high net worth individuals) (71); charitable organizations (6).

**Which custodians does Duncker Streett & Co. use?**
Duncker Streett & Co.'s most recent Form ADV filing (Schedule D, Section 5.K(3)) lists Charles Schwab & Co., Inc. as a custodian holding 10% or more of its separately managed account assets.

**Does Duncker Streett & Co. report any disciplinary disclosures?**
Reports 7 disclosure items on Form ADV Item 11: yes answers to 7 questions about regulatory matters (11.C(2), 11.C(4), 11.C(5), 11.D(2), 11.D(4), 11.D(5), 11.E(2)). Each question covers the firm and its advisory affiliates, and one event can produce several yes answers. The detail of any item is on the firm's SEC record: https://adviserinfo.sec.gov/firm/summary/110828

**Does Duncker Streett & Co. state an account minimum?**
Its Form ADV Part 2A brochure dated March 25, 2026 says: "Generally, our minimum account size is $1,000,000, though this threshold requirement may be waived based on other considerations such as the account’s relationship to established clients or other factors."

**What changed in Duncker Streett & Co.'s recent Form ADV filings?**
In the June 2026 filing data: Updated its list of owners and control persons (Schedule A).

## From the Form ADV filing

### Compensation (Item 5.E)
- A percentage of assets under your management
- Fixed fees (other than subscription fees)

### Fees and minimums (Form ADV Part 2A brochure dated March 25, 2026)

- Account minimum: $1,000,000 (the brochure says it may be waived or negotiated)

> Generally, our minimum account size is $1,000,000, though this threshold requirement may be waived based on other considerations such as the account’s relationship to established clients or other factors.

As stated in the firm's brochure. Fees can differ by service and may be negotiable.

### Custodians (Schedule D, Section 5.K(3))
- Charles Schwab & Co., Inc.

Custodians holding 10% or more of the firm's separately managed account assets, as filed on Form ADV (Schedule D, Section 5.K(3)). A custodian holds client assets; it does not endorse or supervise the firm. AdvisorCensus has no relationship with any custodian.

### Regulatory assets under management (Item 5.F)
- Total: $707,308,314
- Discretionary: $695,912,445
- Non-discretionary: $11,395,869

### Clients (Item 5.D)

| Client type | Clients | Assets |
| --- | --- | --- |
| Individuals (other than high net worth individuals) | 71 | $24,776,239 |
| High net worth individuals | 94 | $485,430,298 |
| Pension and profit sharing plans (but not the plan participants or government pension plans) | 2 | $12,512,821 |
| Charitable organizations | 6 | $184,588,956 |

### Advisory services (Item 5.G)
- Portfolio management for individuals and/or small businesses
- Portfolio management for businesses (other than small businesses) or institutional clients

### Firm details
- Registered since: 2000 (25 years)
- Employees: 5 total, 2 performing advisory functions
- Wrap fee program participation: No
- States registered or notice-filed: CA, FL, IL, MO, NC, TX, WY
- Disclosures (Item 11): Reports 7 disclosure items on Form ADV Item 11.

### Item 11 questions answered yes
- 11.C(2): Has the SEC or the CFTC ever found that the firm or an advisory affiliate was involved in a violation of SEC or CFTC regulations or statutes?
- 11.C(4): Has the SEC or the CFTC ever entered an order against the firm or an advisory affiliate in connection with investment-related activity?
- 11.C(5): Has the SEC or the CFTC ever imposed a civil money penalty on the firm or an advisory affiliate, or ordered the firm or an advisory affiliate to cease and desist from an activity?
- 11.D(2): Has another federal regulator, a state regulator, or a foreign financial regulator ever found that the firm or an advisory affiliate was involved in a violation of investment-related regulations or statutes?
- 11.D(4): In the past ten years, has another federal regulator, a state regulator, or a foreign financial regulator entered an order against the firm or an advisory affiliate in connection with investment-related activity?
- 11.D(5): Has another federal regulator, a state regulator, or a foreign financial regulator ever denied, suspended, or revoked the registration or license of the firm or an advisory affiliate, prevented either by order from associating with an investment-related business, or restricted either one's activity?
- 11.E(2): Has a self-regulatory organization or a commodities exchange ever found that the firm or an advisory affiliate was involved in a violation of its rules, other than a minor rule violation under a plan the SEC approved?

Each question covers the firm and its advisory affiliates: its current employees other than clerical staff, its officers, partners, and directors, and anyone who controls the firm or is controlled by it. One event can produce yes answers to several questions. SEC-registered advisers and exempt reporting advisers may leave out events more than ten years old, and may answer 11.A(2) and 11.B(2) for pending charges only. The detail of each yes answer is on the firm's SEC record: https://adviserinfo.sec.gov/firm/summary/110828

### Websites listed on Form ADV (Item 1.I)
- [dunckerstreett.com](https://dunckerstreett.com)

## Assets and staff over time

| Data period | Regulatory assets under management | Employees | Filing dated |
| --- | --- | --- | --- |
| October 2021 | $590,311,828 | 5 | March 31, 2021 |
| October 2022 | $698,047,731 | 5 | May 11, 2022 |
| October 2023 | $538,521,622 | 4 | March 28, 2023 |
| October 2024 | $599,643,750 | 5 | March 20, 2024 |
| October 2025 | $665,007,476 | 5 | April 22, 2025 |
| October 2026 | $707,308,314 | 5 | May 8, 2026 |

Regulatory assets under management: $590,311,828 in the October 2021 data and $707,308,314 in the October 2026 data, up 20%.
Total employees: 5 in October 2021 and 5 in October 2026.

## Changes in the filing (last 12 months)

### June 2026
- Updated its list of owners and control persons (Schedule A).

### April 2026
- Employees performing advisory functions went from 3 to 2.

## Source

Form ADV as filed, October 2026. Values appear as filed. Cite as: AdvisorCensus. Duncker Streett & Co. (CRD 110828): Form ADV filing data as of October 2026.