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What Is the KMAR ETF? A Complete Guide to Returns, Expense Ratio, Holdings, and Alternative ETFs

Updated August 17, 2026 · First published August 17, 2026

The KMAR ETF, the Innovator U.S. Small Cap Power Buffer ETF March, is designed to track the performance of an underlying exchange-traded fund linked to the Russell 2000 with capped upside participation and a loss buffer. Rather than dividends, investors should weigh its defensive characteristics over the outcome period, the small-cap outlook, and differences in management fees.

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What Is the Innovator U.S. Small Cap Power Buffer ETF March?

The KMAR ETF follows the returns of an underlying exchange-traded fund linked to the Russell 2000, but it buffers part of the losses over a set outcome period and places a cap on upside gains. The intended outcome can only be approached when the fund is held from the start to the end of the outcome period.

It suits investors who want to keep exposure to U.S. small caps while reducing some of the impact of declines, who understand the outcome-period structure, and who can manage their purchase timing and holding period.

It is a passively managed (index-tracking) ETF run by Innovator ETFs.

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How Does the Innovator U.S. Small Cap Power Buffer ETF March Invest?

ItemDetails
Tracked assetUnderlying exchange-traded fund linked to the Russell 2000
Management stylePassive options strategy
Rebalancing cycleOutcome period reset annually
Dividend frequencyNo distribution history
Product typeDefined outcome ETF
Total expense ratio0.79%

This product reflects the performance of an underlying exchange-traded fund linked to the Russell 2000 through a combination of options. Within the outcome period, it absorbs part of the losses in exchange for limiting the range of upside participation. Buying in the middle of an outcome period can change the remaining buffer and the remaining upside cap, so investors should check the terms displayed at the time of purchase.

  • Defined loss buffer structure
  • Outcome period design with an upside participation cap
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Size and Costs of the Innovator U.S. Small Cap Power Buffer ETF March (AUM and Management Fee)

Assets under management (AUM) stand at $31.5M, and the total expense ratio (Expense Ratio) is 0.79% per year.

Trading conditions may vary with market conditions and changes in assets under management. Using limit orders and checking the bid-ask spread and the remaining terms of the outcome period before buying can help investors interpret the defined outcome structure.

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Performance and Trends of the Innovator U.S. Small Cap Power Buffer ETF March

1-Year Price Performance
Dividend & Yield
1Y Return +12.0%
52-Week Price Range
$31
Low $27 High $33
vs. low +15.71% vs. high -3.85%

Return patterns are influenced by the direction of the U.S. small-cap market, volatility, and changes in options pricing. When a rally persists, the predetermined upside cap can limit participation in gains, and in a weak market the fund can remain exposed to further declines beyond the buffer zone. It is therefore more appropriate to interpret performance based on the terms of the outcome period than on short-term returns.

Demand for defined outcome products can vary with investors' desire to manage large price swings and their appetite for small-cap risk. Interest rates, economic expectations, and market volatility can affect the movement of Russell 2000 related assets, and this product reflects both the direction of the underlying asset and the options structure.

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Pros and Cons of the Innovator U.S. Small Cap Power Buffer ETF March

The design that buffers part of the losses is an advantage, but the limit on upside participation and the terms for buying mid-period should be reviewed separately.

💪 Key Strengths

Downside buffer structure
It is designed to buffer part of the decline in the underlying asset within the outcome period, which differs from a structure that takes on small-cap volatility in full.
Rule-based outcomes
The upside cap and buffer terms are presented for each outcome period, so investors can check the range of expected returns and risk in advance.
Continued small-cap exposure
While staying linked to the U.S. small-cap market, it offers a profit and loss path that differs from direct ownership through an options strategy.

⚠️ Points to Watch

Limited upside participation
If the underlying asset rises sharply, the predetermined upside cap may keep the fund from fully following the market's performance.
Mid-period purchase terms
Buying in the middle of an outcome period changes the remaining buffer and upside cap, which can lead to results different from those of holding from the start.
Small-cap volatility
The small-cap market can be sensitive to shifts in economic expectations and risk appetite, so the risk of declines beyond the buffer zone remains.
Cost comparison
Fees and assets under management differ from those of comparable buffer products, so long-term holding costs and trading conditions should be compared.
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Alternative ETFs and Related Products to the Innovator U.S. Small Cap Power Buffer ETF March

Among the ETFs in the comparison table, the BUFR ETF uses a buffer approach split across multiple outcome periods, while the SFLR ETF is distinguished by its approach of managing a downside floor. The BUFD ETF aims for a deeper buffer structure, and the BUFQ ETF provides exposure to a different underlying index. The FJAN ETF uses an outcome period that starts in a different month. Because these products differ from the KMAR ETF in fees and assets under management, long-term costs and trading conditions should be compared together.

Peer Comparison ETFs
TickerNamePriceChangeAUMTotal Expense RatioDividend Yield1Y
BUFRBUFRFT Vest Laddered Buffer ETF$37.50-0.3%$10.9B0.95%-+11.6%
SFLRSFLRInnovator Equity Managed Floor ETF$39.11-0.1%$2.2B0.89%0.25%+7.7%
BUFDBUFDFT Vest Laddered Deep Buffer ETF$30.41-0.3%$2.2B0.95%-+9.4%
BUFQBUFQFT Vest Laddered Nasdaq Buffer ETF$39.64+0.0%$1.7B1.00%-+12.8%
FJANFJANFT Vest U.S. Equity Buffer ETF - January$56.56-0.3%$1.5B0.85%-+12.2%
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Investor Checkpoints for the Innovator U.S. Small Cap Power Buffer ETF March

Unlike a simple small-cap index-tracking product, this product has an outcome period and an options structure that affect its return path. Before investing, it is necessary to check the remaining upside cap and buffer terms of the current outcome period, trading conditions, and currency exposure for investors measuring in Korean won.

CheckpointWhat to CheckCurrent Status
Management feeLong-term holding cost and fee differences versus comparable productsComparison needed
Outcome periodRemaining buffer and upside cap at the time of purchaseTerms need checking
Trading conditionsBid-ask spread and order typeCheck before buying
Exchange rateEffect on performance converted into Korean wonCurrency exposure present

This product is not a structure that eliminates downside risk. Declines beyond the buffer zone, the opportunity cost created by the upside cap, the high volatility of the small-cap market, and differences in terms from buying mid-period can all come into play. For investors measuring in Korean won, exchange rate changes are also a separate source of gains and losses.

The KMAR ETF is a product built for those who want to add a loss buffer structure to Russell 2000 related small-cap exposure. If you simply want to track a small-cap index, first compare the structural differences. If you choose an outcome-period product, it is appropriate to check whether the current terms match your holding plan.

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Disclaimer: This content is for informational purposes only and does not constitute investment advice. All investment responsibility lies with the investor.

This article reflects information as of August 17, 2026.

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