The interactive data file included as an exhibit to this filing relates to the supplements to each of the prospectuses for Wanger International and Wanger International Select filed pursuant to Rule 497(e) under the Securities Act of 1933, as amended, on October 20, 2015 (Accession No. 0001193125-15-348152), which is incorporated herein by reference.
May. 01, 2015 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Supplement dated October 20, 2015 to the Prospectus dated May 1, 2015 for the following Fund:
Effective immediately, the Fund's prospectus is hereby supplemented to reflect that the following changes will become effective January 1, 2016:
Columbia Wanger Asset Management, LLC, the Fund's investment adviser (the Investment Manager), believes that stocks of small- and mid-sized companies, which generally are not as well known by financial analysts as larger companies, may offer higher return potential than stocks of larger companies.
The following bar chart and table show you how the Fund has performed in the past, and can help you understand the risks of investing in the Fund. The bar chart shows how the Fund's performance has varied for each full calendar year shown. The table below the bar chart compares the Fund's returns for the periods shown with those of the MSCI ACWI Ex USA Small Cap Index (Net), the Fund's primary benchmark (the New Index), and the Standard & Poor's (S&P) Global Ex-U.S. Between $500 Million and $5 Billion® Index (the Former Index). The MSCI ACWI Ex USA Small Cap Index (Net) captures small-cap representation across 22 of 23 developed market countries (excluding the United States) and 23 emerging markets countries. It has 4,240 constituents (as of September 30, 2015) and covers approximately 14% of the global equity opportunity set outside the United States. Prior to January 1, 2016, the Fund's primary benchmark was the S&P Global Ex-U.S. Between $500 Million and $5 Billion® Index, a subset of the broad market selected by S&P that represents the mid- and small-cap developed and emerging markets, excluding the United States. The Fund changed its primary benchmark because the Investment Manager believes that: the New Index is well-recognized and more widely used than the Former Index, and provides greater transparency for investors measuring relative performance; and the composition of the New Index makes it a more appropriate comparison to the Fund's actual and potential investments. Information on the New Index and the Former Index will be provided for a one year transition period. Thereafter, only information on the New Index will be provided.
Supplement dated October 20, 2015 to the Prospectus dated May 1, 2015 for the following Fund:
Effective immediately, the Fund's prospectus is hereby supplemented to reflect that the following changes will become effective January 1, 2016:
Columbia Wanger Asset Management, LLC, the Fund's investment adviser (the Investment Manager), believes that stocks of small- and mid-sized companies, which generally are not as well known by financial analysts as larger companies, may offer higher return potential than stocks of larger companies. The Fund also may invest in larger-sized companies.
The following bar chart and table show you how the Fund has performed in the past, and can help you understand the risks of investing in the Fund. The bar chart shows how the Fund's performance has varied for each full calendar year shown. The table below the bar chart compares the Fund's returns for the periods shown with the MSCI ACWI Ex USA Index (Net), the Fund's primary benchmark (the New Index), and the Standard & Poor's (S&P) Developed Ex-U.S. Between $2 Billion and $10 Billion® Index (the Former Index). The MSCI ACWI Ex USA Index (Net) captures large- and mid-cap representation across 22 of 23 developed market countries (excluding the United States) and 23 emerging markets countries. It has 1,843 constituents (as of September 30, 2015) and covers approximately 85% of the global equity opportunity set outside the United States. Prior to January 1, 2016, the Fund's primary benchmark was the S&P Developed Ex-U.S. Between $2 Billion and $10 Billion® Index, a subset of the broad market selected by S&P that represents the mid-cap developed market excluding the United States. The Fund changed its primary benchmark because the Investment Manager believes that: the New Index is well-recognized and more widely used than the Former Index, and provides greater transparency for investors measuring relative performance; and the composition of the New Index makes it a more appropriate comparison to the Fund's actual and potential investments. Information on the New Index and the Former Index will be provided for a one year transition period. Thereafter, only information on the New Index will be provided.
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Label | Element | Value | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Registrant Name | dei_EntityRegistrantName | WANGER ADVISORS TRUST | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Prospectus Date | rr_ProspectusDate | May 01, 2015 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Supplement [Text Block] | wat_SupplementTextBlock | Supplement dated October 20, 2015 to the Prospectus dated May 1, 2015 for the following Fund:
Effective immediately, the Fund's prospectus is hereby supplemented to reflect that the following changes will become effective January 1, 2016:
Columbia Wanger Asset Management, LLC, the Fund's investment adviser (the Investment Manager), believes that stocks of small- and mid-sized companies, which generally are not as well known by financial analysts as larger companies, may offer higher return potential than stocks of larger companies.
The following bar chart and table show you how the Fund has performed in the past, and can help you understand the risks of investing in the Fund. The bar chart shows how the Fund's performance has varied for each full calendar year shown. The table below the bar chart compares the Fund's returns for the periods shown with those of the MSCI ACWI Ex USA Small Cap Index (Net), the Fund's primary benchmark (the New Index), and the Standard & Poor's (S&P) Global Ex-U.S. Between $500 Million and $5 Billion® Index (the Former Index). The MSCI ACWI Ex USA Small Cap Index (Net) captures small-cap representation across 22 of 23 developed market countries (excluding the United States) and 23 emerging markets countries. It has 4,240 constituents (as of September 30, 2015) and covers approximately 14% of the global equity opportunity set outside the United States. Prior to January 1, 2016, the Fund's primary benchmark was the S&P Global Ex-U.S. Between $500 Million and $5 Billion® Index, a subset of the broad market selected by S&P that represents the mid- and small-cap developed and emerging markets, excluding the United States. The Fund changed its primary benchmark because the Investment Manager believes that: the New Index is well-recognized and more widely used than the Former Index, and provides greater transparency for investors measuring relative performance; and the composition of the New Index makes it a more appropriate comparison to the Fund's actual and potential investments. Information on the New Index and the Former Index will be provided for a one year transition period. Thereafter, only information on the New Index will be provided.
Supplement dated October 20, 2015 to the Prospectus dated May 1, 2015 for the following Fund:
Effective immediately, the Fund's prospectus is hereby supplemented to reflect that the following changes will become effective January 1, 2016:
Columbia Wanger Asset Management, LLC, the Fund's investment adviser (the Investment Manager), believes that stocks of small- and mid-sized companies, which generally are not as well known by financial analysts as larger companies, may offer higher return potential than stocks of larger companies. The Fund also may invest in larger-sized companies.
The following bar chart and table show you how the Fund has performed in the past, and can help you understand the risks of investing in the Fund. The bar chart shows how the Fund's performance has varied for each full calendar year shown. The table below the bar chart compares the Fund's returns for the periods shown with the MSCI ACWI Ex USA Index (Net), the Fund's primary benchmark (the New Index), and the Standard & Poor's (S&P) Developed Ex-U.S. Between $2 Billion and $10 Billion® Index (the Former Index). The MSCI ACWI Ex USA Index (Net) captures large- and mid-cap representation across 22 of 23 developed market countries (excluding the United States) and 23 emerging markets countries. It has 1,843 constituents (as of September 30, 2015) and covers approximately 85% of the global equity opportunity set outside the United States. Prior to January 1, 2016, the Fund's primary benchmark was the S&P Developed Ex-U.S. Between $2 Billion and $10 Billion® Index, a subset of the broad market selected by S&P that represents the mid-cap developed market excluding the United States. The Fund changed its primary benchmark because the Investment Manager believes that: the New Index is well-recognized and more widely used than the Former Index, and provides greater transparency for investors measuring relative performance; and the composition of the New Index makes it a more appropriate comparison to the Fund's actual and potential investments. Information on the New Index and the Former Index will be provided for a one year transition period. Thereafter, only information on the New Index will be provided.
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Wanger International | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Supplement [Text Block] | wat_SupplementTextBlock | Supplement dated October 20, 2015 to the Prospectus dated May 1, 2015 for the following Fund:
Effective immediately, the Fund's prospectus is hereby supplemented to reflect that the following changes will become effective January 1, 2016:
Columbia Wanger Asset Management, LLC, the Fund's investment adviser (the Investment Manager), believes that stocks of small- and mid-sized companies, which generally are not as well known by financial analysts as larger companies, may offer higher return potential than stocks of larger companies.
The following bar chart and table show you how the Fund has performed in the past, and can help you understand the risks of investing in the Fund. The bar chart shows how the Fund's performance has varied for each full calendar year shown. The table below the bar chart compares the Fund's returns for the periods shown with those of the MSCI ACWI Ex USA Small Cap Index (Net), the Fund's primary benchmark (the New Index), and the Standard & Poor's (S&P) Global Ex-U.S. Between $500 Million and $5 Billion® Index (the Former Index). The MSCI ACWI Ex USA Small Cap Index (Net) captures small-cap representation across 22 of 23 developed market countries (excluding the United States) and 23 emerging markets countries. It has 4,240 constituents (as of September 30, 2015) and covers approximately 14% of the global equity opportunity set outside the United States. Prior to January 1, 2016, the Fund's primary benchmark was the S&P Global Ex-U.S. Between $500 Million and $5 Billion® Index, a subset of the broad market selected by S&P that represents the mid- and small-cap developed and emerging markets, excluding the United States. The Fund changed its primary benchmark because the Investment Manager believes that: the New Index is well-recognized and more widely used than the Former Index, and provides greater transparency for investors measuring relative performance; and the composition of the New Index makes it a more appropriate comparison to the Fund's actual and potential investments. Information on the New Index and the Former Index will be provided for a one year transition period. Thereafter, only information on the New Index will be provided.
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Wanger International Select | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Supplement [Text Block] | wat_SupplementTextBlock | Supplement dated October 20, 2015 to the Prospectus dated May 1, 2015 for the following Fund:
Effective immediately, the Fund's prospectus is hereby supplemented to reflect that the following changes will become effective January 1, 2016:
Columbia Wanger Asset Management, LLC, the Fund's investment adviser (the Investment Manager), believes that stocks of small- and mid-sized companies, which generally are not as well known by financial analysts as larger companies, may offer higher return potential than stocks of larger companies. The Fund also may invest in larger-sized companies.
The following bar chart and table show you how the Fund has performed in the past, and can help you understand the risks of investing in the Fund. The bar chart shows how the Fund's performance has varied for each full calendar year shown. The table below the bar chart compares the Fund's returns for the periods shown with the MSCI ACWI Ex USA Index (Net), the Fund's primary benchmark (the New Index), and the Standard & Poor's (S&P) Developed Ex-U.S. Between $2 Billion and $10 Billion® Index (the Former Index). The MSCI ACWI Ex USA Index (Net) captures large- and mid-cap representation across 22 of 23 developed market countries (excluding the United States) and 23 emerging markets countries. It has 1,843 constituents (as of September 30, 2015) and covers approximately 85% of the global equity opportunity set outside the United States. Prior to January 1, 2016, the Fund's primary benchmark was the S&P Developed Ex-U.S. Between $2 Billion and $10 Billion® Index, a subset of the broad market selected by S&P that represents the mid-cap developed market excluding the United States. The Fund changed its primary benchmark because the Investment Manager believes that: the New Index is well-recognized and more widely used than the Former Index, and provides greater transparency for investors measuring relative performance; and the composition of the New Index makes it a more appropriate comparison to the Fund's actual and potential investments. Information on the New Index and the Former Index will be provided for a one year transition period. Thereafter, only information on the New Index will be provided.
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Label | Element | Value |
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Risk/Return: | rr_RiskReturnAbstract | |
Document Type | dei_DocumentType | Other |
Document Period End Date | dei_DocumentPeriodEndDate | Dec. 31, 2014 |
Registrant Name | dei_EntityRegistrantName | WANGER ADVISORS TRUST |
Central Index Key | dei_EntityCentralIndexKey | 0000929521 |
Amendment Flag | dei_AmendmentFlag | false |
Document Creation Date | dei_DocumentCreationDate | Oct. 20, 2015 |
Document Effective Date | dei_DocumentEffectiveDate | Oct. 20, 2015 |
Prospectus Date | rr_ProspectusDate | May 01, 2015 |
Label | Element | Value |
---|---|---|
Risk/Return: | rr_RiskReturnAbstract | |
Registrant Name | dei_EntityRegistrantName | WANGER ADVISORS TRUST |
Prospectus Date | rr_ProspectusDate | May 01, 2015 |
Document Creation Date | dei_DocumentCreationDate | Oct. 20, 2015 |
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