iShares Extends Its Lead: $133M in Weekly Inflows Cements 58% Market Share in FI: Specialty

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Weekly Channel Summary

The FI: Specialty ETF channel currently consists of 149 ETFs managed across 14 distinct issuers, representing $70B in total Assets Under Management (AUM). Over the past week, the channel saw net positive activity, taking in $104M in new assets. Looking further back, the space has attracted $5.48B year-to-date and an impressive $21.78B over the trailing 1-year period.

Analyzing the Weekly Flows

For the week ending April 17, 2026, the channel generated $104M in total net flows. The Specialty – Defined Maturity category led the way, capturing $106M in weekly inflows. From a segment perspective, FI: Corporate debt saw the highest demand with $46M in net new assets. When looking at target maturity years, the Duration: 2029 bucket attracted the most capital with $41M in inflows, while the Duration: 2027 bucket experienced the largest outflows at -$35M.

Category Flows Summary

ETFA Category Fund Count AUM 5 Day Flow 30 Day Flow 90 Day Flow YTD Flow 1 Year Flow
Specialty – Defined Maturity 120 $68.7B $106M $701M $3,969M $5,547M $21,761M
Specialty – Interest Rate Volatility 8 $0.9B -$3M -$63M -$71M -$79M $189M
Fixed Income: Specialty – Maturing Ladder 20 $0.1B $0M $1M $12M $11M -$170M

Segment Flows Summary

Segment Fund Count AUM 5 Day Flow 30 Day Flow 90 Day Flow YTD Flow 1 Year Flow
FI: Corporate 62 $52.9B $46M $319M $2,729M $3,958M $16,006M
FI: Government 58 $12.0B $39M $216M $814M $1,054M $4,120M
FI: Municipal 28 $4.8B $19M $105M $367M $466M $1,653M

Duration Flows Summary

Duration Fund Count AUM 5 Day Flow 30 Day Flow 90 Day Flow YTD Flow 1 Year Flow
Duration: 2026 10 $13.0B -$22M -$256M -$670M -$645M $1,094M
Duration: 2027 12 $12.9B -$35M $44M $591M $838M $3,537M
Duration: 2028 13 $11.5B $21M $284M $1,112M $1,430M $3,938M
Duration: 2029 12 $9.5B $41M $56M $699M $1,007M $3,478M
Duration: 2030 16 $7.5B $25M $165M $659M $920M $3,302M
Duration: 2031 12 $5.0B $16M $86M $463M $584M $2,013M
Duration: 2032 11 $3.9B $12M $51M $289M $377M $1,518M
Duration: 2033 11 $2.7B $2M $26M $178M $250M $910M
Duration: 2034 8 $1.8B $16M $133M $354M $411M $1,128M
Duration: 2035 12 $0.9B $17M $81M $270M $350M $589M
Duration: 2036 4 $0.0B $14M $24M $24M $24M $24M
Duration: 2044 1 $0.1B $0M $1M $5M $6M $33M
Duration: 2045 3 $0.0B $0M $0M $0M $0M $5M
Duration: 2046 1 $0.0B $0M $3M $3M $3M $3M
Duration: 2050 2 $0.0B $0M $0M $0M $0M $2M
Duration: 2054 1 $0.0B $0M $0M $0M $0M $1M
Duration: 2055 5 $0.0B $0M $1M $2M $2M $5M
Duration: 2056 1 $0.0B $0M $2M $2M $2M $2M

Top & Bottom 5 ETFs by 5-Day Flow

The iShares iBonds Dec 2030 Term Corporate ETF (IBDV) was the top flow gatherer for the week, taking in $22M. Conversely, the Invesco BulletShares 2027 Corporate Bond ETF (BSCR) and the iShares iBonds Dec 2026 Term Corporate ETF (IBDR) faced the steepest redemptions, losing $53M and $23M respectively.

Ticker Fund Name 5-Day Flow
Inflows
IBDV iShares iBonds Dec 2030 Term Corporate ETF $22M
IBDU iShares iBonds Dec 2029 Term Corporate ETF $19M
IBCB iShares iBonds Dec 2036 Term Corporate ETF $14M
MYCH State Street My2028 Corporate Bond ETF $11M
IBTJ iShares iBonds Dec 2029 Term Treasury ETF $11M
Outflows
BSCR Invesco BulletShares 2027 Corporate Bond ETF -$53M
IBDR iShares iBonds Dec 2026 Term Corporate ETF -$23M
BSCQ Invesco BulletShares 2026 Corporate Bond ETF -$12M
BSCT Invesco BulletShares 2029 Corporate Bond ETF -$6M
BSCU Invesco BulletShares 2030 Corporate Bond ETF -$5M

Issuer League Table Update

The FI: Specialty landscape is highly concentrated, with the top two issuers controlling over 97% of the total market share. iShares maintains its position as the clear leader with a 57.91% market share, followed by Invesco at 39.62%. iShares was also the most successful at gathering assets over the past week, bringing in $133M in net inflows. Invesco, on the other hand, witnessed the largest weekly outflows, shedding $36M.

Top 5 Issuers by AUM

Brand Fund Count AUM AUM Market Share
iShares 56 $40.35B 57.91%
Invesco 28 $27.60B 39.62%
State Street 21 $0.67B 0.96%
Quadratic 1 $0.34B 0.49%
Simplify 2 $0.26B 0.37%

Top & Bottom 3 Issuers by 5-Day Flow

Brand 5-Day Flow
Inflows
iShares $133M
State Street $12M
FolioBeyond $2M
Outflows
Invesco -$36M
Quadratic -$5M
Global X -$2M

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.