Defined Maturity Funds Drive Steady Gains Amid 2026 Duration Outflows

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Weekly Channel Summary

The FI: Specialty channel closed the week with $75.18B in total AUM spread across 169 ETFs from 13 issuers. Weekly net inflows totaled $490M, extending a strong year with YTD net inflows of $12,601M and 1-Year net inflows of $19,649M. The channel’s flow trajectory remains firmly positive across all time horizons tracked, reflecting sustained investor demand for specialty fixed income exposures.

This Week’s Performance Leaders and Laggards

Specialty – Defined Maturity led the channel on a WTD basis with a 0.29% gain across its 133 constituent funds, building on a modest 0.38% YTD return. Specialty – Maturing Ladder posted a 0.24% WTD gain but remains the weakest performer over longer horizons, down 1.99% YTD and 1.62% over the trailing year. Specialty – Interest Rate Volatility was the lone decliner this week at -0.88%, though it stands out as the strongest category over longer periods with a 9.33% YTD return and 10.68% 1-Year gain. The divergence highlights a rotation where near-term weakness in rate-volatility products contrasts with their outsized longer-term performance relative to the more stable defined maturity and ladder categories.

Category Performance Snapshot

Category WTD 1 Month 3 Month 6 Month YTD 1 Year
Specialty – Defined Maturity 0.29% -0.59% -0.60% -0.20% 0.38% 1.50%
Specialty – Maturing Ladder 0.24% -1.81% -2.55% -2.57% -1.99% -1.62%
Specialty – Interest Rate Volatility -0.88% 5.64% 9.64% 10.24% 9.33% 10.68%

Top & Bottom 5 ETFs by Weekly Performance

FolioBeyond Alternative Income and Interest Rate Hedge ETF (RISR) topped the weekly leaderboard with a 1.08% gain, followed closely by a cluster of iShares iBonds term funds including IBHM (0.87%) and IBHL (0.84%). On the downside, Simplify Interest Rate Hedge ETF (PFIX) was the clear laggard, falling 5.19% for the week, with Simplify Bond Bull ETF (RFIX) also declining 2.13%. These two funds’ underperformance contrasts with the broader channel’s positive weekly tone, suggesting idiosyncratic pressure on rate-hedging strategies even as defined maturity products advanced.

Ticker Fund Name WTD Performance
Top Performers
RISR FolioBeyond Alternative Income and Interest Rate Hedge ETF 1.08%
IBHM iShares iBonds 2033 Term High Yield and Income ETF 0.87%
IBHL iShares iBonds 2032 Term High Yield and Income ETF 0.84%
IBMX iShares iBonds Dec 2035 Term Muni Bond ETF 0.79%
IBHI iShares iBonds 2029 Term High Yield and Income ETF 0.68%
Bottom Performers
PFIX Simplify Interest Rate Hedge ETF -5.19%
RFIX Simplify Bond Bull ETF -2.13%
RINF ProShares Inflation Expectations ETF -0.31%
BSMY Invesco BulletShares 2034 Municipal Bond ETF -0.29%
MUNH Northern Trust 2056 Tax-Exempt Distributing Ladder ETF -0.26%

Analyzing the Weekly Flows

The channel attracted $490M in net inflows for the week, led overwhelmingly by the Specialty – Defined Maturity category with $467M, while Specialty – Interest Rate Volatility added a further $21M. By segment, Government funds led with $264M in inflows, followed by Corporate at $191M and Municipal at $35M. Duration-based flows showed a clear preference for intermediate maturities, with the 2028 bucket gathering $116M and 2030 adding $110M, while the 2026 duration bucket suffered the week’s largest outflow at -$224M, consistent with maturity-driven redemptions as those funds approach termination.

Flows by Category

Category Fund Count AUM 5 Day 30 Day 90 Day YTD 1 Year
Specialty – Defined Maturity 133 $74.04B $467M $1,351M $3,686M $12,599M $19,639M
Specialty – Interest Rate Volatility 8 $964M $21M $41M $21M -$20M $35M
Specialty – Maturing Ladder 28 $175M $2M -$1M -$4M $22M -$25M

Flows by Segment

Segment Fund Count AUM 5 Day 30 Day 90 Day YTD 1 Year
Government 67 $14.09B $264M $623M $1,484M $3,417M $4,824M
Corporate 66 $55.68B $191M $565M $1,799M $8,009M $13,109M
Municipal 36 $5.42B $35M $203M $420M $1,175M $1,715M

Flows by Duration

Duration Fund Count AUM 5 Day 30 Day 90 Day YTD 1 Year
Duration: 2026 10 $10.42B -$224M -$675M -$1,727M -$3,186M -$2,320M
Duration: 2027 13 $13.73B $74M $136M $601M $1,762M $2,586M
Duration: 2028 14 $13.35B $116M $350M $1,067M $3,468M $4,693M
Duration: 2029 13 $10.58B $33M $289M $606M $2,359M $3,518M
Duration: 2030 17 $8.71B $110M $288M $865M $2,439M $3,614M
Duration: 2031 15 $6.01B $83M $277M $718M $1,824M $2,370M
Duration: 2032 13 $4.35B $56M $122M $380M $1,069M $1,548M
Duration: 2033 11 $3.05B $51M $144M $329M $806M $1,048M
Duration: 2034 10 $2.11B $70M $136M $248M $813M $1,087M
Duration: 2035 13 $1.31B $32M $149M $310M $849M $1,039M
Duration: 2036 9 $361M $67M $141M $233M $334M $334M
Duration: 2044 1 $70M -$2M -$31M -$25M -$7M $3M
Duration: 2045 3 $22M $0M $0M $3M $3M $6M
Duration: 2046 3 $60M $2M $21M $43M $50M $50M
Duration: 2050 2 $7M $0M $0M $0M $0M $1M
Duration: 2054 1 $5M $0M $0M $0M $2M $4M
Duration: 2055 5 $19M $0M -$0M -$3M -$4M -$5M
Duration: 2056 3 $52M $0M $2M $39M $42M $42M
Duration: 2060 2 $4M $0M $0M -$4M -$2M -$3M
Duration: 2065 2 $6M $1M $1M -$1M -$1M -$1M
Duration: Long 1 $1M -$0M -$0M -$0M $0M -$0M

Top & Bottom 5 ETFs by 5-Day Flow

iShares iBonds Dec 2028 Term Treasury ETF (IBTI) led all funds with $71M of weekly inflows, followed by Invesco BulletShares 2034 Corporate Bond ETF (BSCY) at $47M. On the outflow side, iShares iBonds Dec 2026 Term Corporate ETF (IBDR) saw the largest redemptions at -$67M, followed by Invesco BulletShares 2026 High Yield Corp Bond ETF (BSJQ) at -$48M. The pattern reinforces the broader duration trend, with 2026-dated funds across issuers facing the heaviest selling pressure as maturity approaches.

Ticker Fund Name 5-Day Flow
Inflows
IBTI iShares iBonds Dec 2028 Term Treasury ETF $71M
BSCY Invesco BulletShares 2034 Corporate Bond ETF $47M
IBTK iShares iBonds Dec 2030 Term Treasury ETF $44M
IBTR iShares iBonds Dec 2036 Term Treasury ETF $37M
IBDV iShares iBonds Dec 2030 Term Corporate ETF $36M
Outflows
IBDR iShares iBonds Dec 2026 Term Corporate ETF -$67M
BSJQ Invesco BulletShares 2026 High Yield Corp Bond ETF -$48M
BSCQ Invesco BulletShares 2026 Corporate Bond ETF -$41M
IBDU iShares iBonds Dec 2029 Term Corporate ETF -$41M
IBTG iShares iBonds Dec 2026 Term Treasury ETF -$31M

Issuer League Table Update

iShares remains the dominant force in the channel with $43.92B in AUM and a 58.42% market share across 57 funds, followed by Invesco at $28.39B and 37.76% share across 36 funds. iShares also led weekly inflows with $268M, while Invesco followed with $149M, and Vanguard added a smaller $44M. On the outflow side, Quadratic recorded the largest weekly redemption at -$14M, with KraneShares posting a marginal -$2M outflow. The concentration of both AUM and flows among the top two issuers underscores their continued dominance of the specialty fixed income landscape.

Top 5 Issuers by AUM

Brand Fund Count AUM AUM Market Share
iShares 57 $43.92B 58.42%
Invesco 36 $28.39B 37.76%
State Street 24 $1.22B 1.62%
Vanguard 10 $508M 0.68%
FolioBeyond 1 $421M 0.56%

Top & Bottom 3 Issuers by 5-Day Flow

Brand 5-Day Flow
Inflows
iShares $268M
Invesco $149M
Vanguard $44M
Outflows
Quadratic -$14M
KraneShares -$2M
American Beacon $0M

For a deeper dive into these trends, access our FREE, in-depth FI: Specialty ETF reports in the right side panel of this page.

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.