Release: Estimated ETF Net Issuance
ETFIQ take
In an October 2026 release, the Investment Company Institute estimated net ETF issuance of $53.26 billion for the week to October 14, 2026.
Research Library · 33 papers · 12 firms
Research on fund flows
Papers from issuers, banks, research firms and industry bodies, each summarized in ETFIQ’s words with a link to the firm’s own page, and tested against ETFIQ’s data where it can be.
As of Oct 21, 2026, 16 papers; 13 carry an ETFIQ take with figures of our own.
Filters are links to pages of their own; the chips mark the page you are on. Newest first. 24 per page. "ETFIQ take" marks a paper with figures of ours beside its own.
Guide to ETFs
ETFIQ take
J.P. Morgan Asset Management's October 2026 Guide to ETFs counts 5,677 U.S. ETFs holding $16.3 Tn, with data through September 30, 2026.
ETF Data Watch
ETFIQ take
First Trust's October 2026 flows monitor shows US-listed ETFs took in $139.9 billion of net inflows in September, lifting total assets to $15.9 trillion.
Release: Active and Index Investing, August 2026
ETFIQ take
The Investment Company Institute's September 2026 release shows index mutual funds and ETFs at $22.40 trillion in August, ahead of $18.87 trillion in active funds.
Release: Exchange-Traded Fund Data, August 2026
The Investment Company Institute's September 2026 release puts combined US ETF assets at $16.27 trillion in August, a monthly gain of 3.8 percent.
ETF Data Watch Flier - September 2026
ETFIQ take
First Trust's September 2026 flows monitor counts $179.6 billion of net new money into US-listed ETFs during August, lifting their assets to $16.1 trillion.
Setting the record straight: The truths about index fund investing
ETFIQ take
Vanguard's August 2026 study estimates index fund investors have avoided roughly $570 billion in extra fees since 2000 thanks to lower expense ratios.
Why ETF growth is booming
ETFIQ take
State Street Investment Management's July 2026 explainer, citing Morningstar, counts more than 14,000 ETFs worldwide holding $18.49 trillion.
ETF Impact Report 2026-2027: Built for what’s next. Shaping a shared future.
ETFIQ take
State Street Investment Management's June 2026 ETF Impact Report says globally listed ETFs drew US$641 billion in the first quarter of 2026, a record start.
ETF Tax Treatment Supports Fairness, Efficiency, and Long-Term Investing
A June 2026 Investment Company Institute article, noting ETFs are held by about 20 million US households, defends the tax rule behind in-kind redemptions.
What’s Next for ETFs: Innovation, Distribution, and the Investor Experience
In June 2026, the Investment Company Institute previewed its Nashville ETF Conference of June 8 to 10, with ETF share classes, AI and tokenization on the agenda.
2026 Investment Company Fact Book
ETFIQ take
The Investment Company Institute's April 2026 Fact Book puts US ETF net assets at $13.4 trillion across 4,495 funds at year-end 2025.
Trends in the Expenses and Fees of Funds, 2025
ETFIQ take
The Investment Company Institute's March 2026 fee study finds index equity ETFs kept an asset-weighted average expense ratio of 0.14% in 2025.
ETF flows rumbling along
ETFIQ take
State Street Investment Management's February 2026 flows report counts $165 billion of ETF inflows in January, with non-US equity ETFs taking a record $60 billion.
2026 Trends Shaping Investment Products
ETFIQ take
BlackRock's January 2026 trends paper counts more than 4,700 ETFs in the U.S., with over a third launched within the last two years.
ETF Share Class Operational Considerations
ETFIQ take
An October 2025 Investment Company Institute paper says at least 75 asset managers had sought SEC relief to add ETF share classes to existing mutual funds.
Setting the record straight: The truths about index fund investingVanguard · Flows · ETFIQ takeIssuerAug 14, 2026
Why ETF growth is boomingState Street Investment Management · Flows · ETFIQ takeIssuerJul 16, 2026ETF Impact Report 2026-2027: Built for what’s next. Shaping a shared future.State Street Investment Management · Flows · ETFIQ takeIssuerJun 11, 2026ETF Tax Treatment Supports Fairness, Efficiency, and Long-Term InvestingInvestment Company Institute · FlowsIndustry bodyJun 9, 2026What’s Next for ETFs: Innovation, Distribution, and the Investor ExperienceInvestment Company Institute · Flows · ThemesIndustry bodyJun 5, 20262026 Investment Company Fact BookInvestment Company Institute · Flows · ETFIQ takeIndustry bodyApr 23, 2026Trends in the Expenses and Fees of Funds, 2025Investment Company Institute · Flows · Bonds · ETFIQ takeIndustry bodyMar 24, 2026ETF flows rumbling alongState Street Investment Management · Flows · Bonds · ETFIQ takeIssuerFeb 3, 20262026 Trends Shaping Investment ProductsBlackRock · Flows · Themes · Bonds · ETFIQ takeIssuerJan 13, 2026ETF Share Class Operational ConsiderationsInvestment Company Institute · Flows · ETFIQ takeIndustry bodyOct 23, 20251 to 16 of 16
Firms in the library
How the library works
Each entry is a summary in ETFIQ’s words and a link to the firm’s own page; ETFIQ does not host the papers. Where a paper makes a claim ETFIQ’s data can test, "The ETFIQ take" states the paper’s figure and ETFIQ’s figure side by side, dated, with links to the fund, desk or research page. A summary that fails a check is held, never published. Method →
ETFIQ is not affiliated with any firm listed; logos identify the source. To add or correct a paper: [email protected].
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ETFIQ, Research Library: public ETF research, summarized and tested, as of Oct 21, 2026. https://etfiq.com/research/library/topic/flows/
ETFIQ is not affiliated with any firm listed here; logos identify the source.