# Columbia Thermostat Fund — new fund registration

COLUMBIA ACORN TRUST registered fund series on Form 485APOS, filed 2018-02-28. Featured series: Columbia Thermostat Fund.

## Registration

- Registrant / trust: COLUMBIA ACORN TRUST
- CIK: 0000002110
- Form: 485APOS
- Filed: 2018-02-28
- State of incorporation: MA
- Accession: 0001193125-18-064116
- Reported net assets: $1.3B

## Series & classes (6)

| Series | Class | Ticker | New |
| --- | --- | --- | --- |
| [Columbia Thermostat Fund](https://search.stillhousedata.com/fund/S000009189) | Columbia Thermostat Fund Class A | CTFAX | — |
| [Columbia Thermostat Fund](https://search.stillhousedata.com/fund/S000009189) | Columbia Thermostat Fund Class C | CTFDX | — |
| [Columbia Thermostat Fund](https://search.stillhousedata.com/fund/S000009189) | Columbia Thermostat Fund Institutional Class | COTZX | — |
| [Columbia Thermostat Fund](https://search.stillhousedata.com/fund/S000009189) | Columbia Thermostat Fund Advisor Class | CTORX | — |
| [Columbia Thermostat Fund](https://search.stillhousedata.com/fund/S000009189) | Columbia Thermostat Fund Institutional 2 Class | CQTRX | — |
| [Columbia Thermostat Fund](https://search.stillhousedata.com/fund/S000009189) | Columbia Thermostat Fund Institutional 3 Class | CYYYX | — |

## Fees (from the effective prospectus)

- 12b-1 fee: 0.25%
- Gross expense ratio: 0.87%
- Management fee: 0.10%
- Net expense ratio: 0.86%
- Other expenses: 0.13%

## Investment objective

Columbia Thermostat Fund SM (the Fund) seeks long-term capital appreciation.

## Advisers

- [Columbia Management Investment Advisers, LLC (Advisor)](https://search.stillhousedata.com/firm/108257)

## Other filings by this registrant (7)

- [485APOS — 2011-06-03 (8 new series)](https://search.stillhousedata.com/launch/0001193125-11-158416)
- [485APOS — 2010-12-09](https://search.stillhousedata.com/launch/0001193125-10-277442)
- [485APOS — 2010-02-26](https://search.stillhousedata.com/launch/0001193125-10-042190)
- [485APOS — 2008-02-29](https://search.stillhousedata.com/launch/0001193125-08-043762)
- [485APOS — 2005-03-01](https://search.stillhousedata.com/launch/0000891804-05-000872)
- [485APOS — 2002-09-20](https://search.stillhousedata.com/launch/0000950135-02-004250)
- [485APOS — 2002-07-03](https://search.stillhousedata.com/launch/0000950135-02-003242)

## More

- [Registrant profile: COLUMBIA ACORN TRUST](https://search.stillhousedata.com/registrant/2110)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/launch/0001193125-18-064116.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.