Buffer ETFs Surge Past $90B AUM as May Resets Dominate Weekly Flows

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Macro Summary & Product Growth

The Buffer (Defined Outcome) ETF landscape continues to command significant capital, ending the week with total Assets Under Management (AUM) of $90.41B across 491 distinct ETFs from 19 active issuers. Investor demand remains highly robust, with the category attracting net inflows of $563M over the past five days. This latest push elevates Year-to-Date (YTD) flows to $5.92B and impressive 1-Year trailing flows to $13.25B.

The rapid expansion of the space shows no signs of slowing down. In just the last three months, 26 new Buffer ETFs have been launched, highlighting how issuers continue to flood the market with new outcome variations, staggered outcome periods, and differing buffer depths to meet increasingly specialized advisor demand.

Performance (Idiosyncratic Returns)

It is critical to remember that Defined Outcome performance is highly idiosyncratic. An individual ETF’s return is heavily dependent on its current proximity to its upside cap and downside buffer, rather than perfectly mirroring the underlying asset. Looking purely at the underlying assets this week, Asia-Pacific Emerging equities led the pack with a 6.01% return, closely followed by Emerging Large Cap at 5.84%. Conversely, Taxable Government Long Fixed Income was the weakest underlying category, posting a minimal 0.52% gain.

To see exactly how individual ETFs performed relative to their underlying assets—and to locate where funds sit relative to their specific caps and buffers—we highly recommend reviewing the full, free Performance Report available in the right-side panel.

Flow Cyclicality & Trends

Fund flows in the Buffer space are exhibiting their typical, pronounced cyclicality, heavily concentrated in the current outcome period. The “May” reset period utterly dominated this week with $789M in new capital. From an asset class perspective, Equity remains the undisputed heavyweight, capturing $553M of the total weekly flows. On an individual fund level, the SIXZ (AllianzIM U.S. Equity 6 Month Buffer10 May/Nov ETF) led all peers by attracting a massive $279M in a single week.

Flows by Asset Class

Asset Class # of Funds AUM WTD Flow 1M Flow 3M Flow YTD Flow 1Y Flow
Buffer – Equity 446 $89,417M $553M $1,196M $4,155M $5,782M $12,896M
Buffer – Synthetic Income 18 $721M $12M $42M $63M $151M $325M
Buffer – Crypto 20 $190M $2M ($3M) ($5M) ($5M) $70M
Buffer – Fixed Income 2 $30M $0M $0M $0M ($2M) ($38M)
Buffer – Commodity 1 $50M ($2M) ($3M) $2M ($4M) ($4M)

Flows by Outcome Period / Strategy

Implementation WTD Flow 1M Flow 3M Flow YTD Flow 1Y Flow
Top 3 Implementations (Inflows)
Buffer Reset: May $789M $1,047M $1,024M $988M $1,144M
Buffer Reset: Laddered $209M $624M $1,372M $1,778M $3,925M
Buffer Reset: Semi-Annually $98M ($15M) ($30M) ($27M) ($14M)
Bottom 3 Implementations (Outflows)
Buffer Reset: December ($232M) ($440M) ($229M) $82M $65M
Buffer Reset: September ($126M) ($256M) ($349M) ($401M) $1,059M
Buffer Reset: January ($114M) ($133M) $118M $1,498M $428M

Individual Fund Flows (WTD)

Ticker Fund Name WTD Flow
Top 5 Inflows
SIXZ AllianzIM U.S. Equity 6 Month Buffer10 May/Nov ETF $279M
MAYW AllianzIM U.S. Equity Buffer20 May ETF $244M
PMAY Innovator U.S. Equity Power Buffer ETF – May $194M
ONEZ TrueShares Seasonality Laddered Buffered ETF $90M
ZMAY Innovator Equity Defined Protection ETF – 1 Yr May $87M
Top 5 Outflows
TEND iShares Large Cap 10% Target Buffer Dec ETF ($166M)
SIXO AllianzIM U.S. Equity 6 Month Buffer10 Apr/Oct ETF ($154M)
SEPW AllianzIM U.S. Equity Buffer20 Sep ETF ($103M)
PJAN Innovator U.S. Equity Power Buffer ETF – January ($86M)
JULW AllianzIM U.S. Equity Buffer20 Jul ETF ($83M)

League Tables

The competitive landscape remains top-heavy. FT Vest continues to lead the Buffer market with a commanding 48.89% market share and $44.20B in assets, followed closely by category pioneer Innovator at 36.47% market share. While FT Vest leads in overall bulk, Innovator successfully outpaced all competitors in weekly flows, pulling in $245M versus FT Vest’s $195M.

Top 5 Issuers by AUM

Issuer # of ETFs AUM Market Share
FT Vest 121 $44.20B 48.89%
Innovator 168 $32.97B 36.47%
Allianz 58 $5.55B 6.14%
AB Funds 3 $1.57B 1.73%
Pacer 13 $1.30B 1.43%

Issuer Flows (WTD)

Issuer WTD Flow 1M Flow 3M Flow YTD Flow 1Y Flow
Top 3 Issuers (Inflows)
Innovator $245M $292M $1.31B $1.98B $4.28B
FT Vest $195M $685M $2.01B $2.56B $5.77B
Allianz $157M $69M $0.24B $0.33B $0.73B
Bottom 3 Issuers (Outflows)
iShares ($180M) ($197M) ($0.14B) ($0.06B) $0.09B
BufferLABS ($5M) ($5M) $0.00B $0.00B $0.06B
Pacer $0M ($2M) ($0.02B) $0.00B $0.04B

Explore the data behind the insights. This weekly recap is just the start. Access the complete, in-depth reports for FREE in the right side panel to analyze performance, track flows, and view the latest league tables.

Disclosures

This material is for informational purposes only and should not be considered investment advice. All investments, including ETFs, involve risk, including the possible loss of principal. Investors should consider their investment objectives, risks, charges, and expenses carefully before investing.

This analysis was developed by the team at ETF Action. We leverage advanced AI tools to assist in the drafting and refinement of our content, based on our expert prompts, direction, and final review.