Label

Element

Value

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Document Type

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497

Document Period End Date

dei_DocumentPeriodEndDate

Sep. 30, 2019

Entity Registrant Name

dei_EntityRegistrantName

Innovator ETFs Trust

Entity Central Index Key

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0001415726

Amendment Flag

dei_AmendmentFlag

false

Document Creation Date

dei_DocumentCreationDate

Sep. 30, 2019

Document Effective Date

dei_DocumentEffectiveDate

Sep. 30, 2019

Prospectus Date

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Sep. 30, 2019

Entity Inv Company Type

dei_EntityInvCompanyType

N-1A

Supplement to Prospectus [Text Block]

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Rule 497(e)

Registration Nos. 333-146827 and 811-22135

Innovator S&P 500 Buffer ETF™ – October

Innovator S&P 500 Power Buffer ETF™ – October

Innovator S&P 500 Ultra Buffer ETF™ – October

(each, a “Fund” and together, the “Funds”)

Supplement To each Fund’s Prospectus

Dated March 1, 2019

September 30, 2019

As described in detail in each Fund’s prospectus, an investment in shares of a Fund is subject to an upside return cap (the “Cap”) that represents the maximum percentage return an investor can achieve from an investment in the Fund for the outcome period of approximately one year. Following the close of business on September 30, 2019, an outcome period for each Fund ended. Each Fund will commence a new outcome period that will begin on October 1, 2019 and end on September 30, 2020. An investment in a Fund over the course of the outcome period will be subject to the applicable Cap set forth in the table below.



Fund	Ticker	Cap	Investment Objective
Innovator S&P 500 Buffer ETF – October	BOCT	Gross: 14.12% Net: 13.33%*	The Fund seeks to provide investors with returns that match those of the S&P 500 Price Index, up to the upside cap of 14.12% (prior to taking into account management fees and other fees) and 13.33% (after taking into account management fees and other fees) while providing a buffer against the first 9% of S&P 500 Price Index losses, over the period from October 1, 2019 to September 30, 2020.
Innovator S&P 500 Power Buffer ETF – October	POCT	Gross: 9.20% Net: 8.41%*	The Fund seeks to provide investors with returns that match those of the S&P 500 Price Index, up to the upside cap of 9.20% (prior to taking into account management fees and other fees) and 8.41% (after taking into account management fees and other fees) while providing a buffer against the first 15% of S&P 500 Price Index losses, over the period from October 1, 2019 to September 30, 2020.
Innovator S&P 500 Ultra Buffer ETF – October	UOCT	Gross: 7.70% Net: 6.91%*	The Fund seeks to provide investors with returns that match those of the S&P 500 Price Index, up to the upside cap of 7.70% (prior to taking into account management fees and other fees) and 6.91% (after taking into account management fees and other fees) while providing a buffer against S&P 500 Price Index losses of between 5% and 35%, over the period from October 1, 2019 to September 30, 2020.

* Takes into account the Fund’s unitary management fee.

In connection with onset of the new outcome period, each Fund’s prospectus is amended as set forth below:


1.	Each Fund’s investment objective is deleted in its entirety and replaced with the corresponding investment objective set forth in the table above.


2.	All references to the dates associated with the prior outcome period are deleted in their entirety and replaced with references to new outcome period: October 1, 2019 through September 30, 2020.


3.	All references to the Cap for the prior outcome period are deleted in their entirety and replaced with the corresponding Cap set forth in the table above.

Supplement Closing [Text Block]

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Please Keep This Supplement With Your Prospectus For Future Reference

Innovator S&P 500 Buffer ETF - October

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Innovator S&P 500 Buffer ETF™ – October

Innovator S&P 500 Buffer ETF - October | Innovator S&P 500 Buffer ETF - October

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