The thematic ETFs that lost the most
In the week to Oct 8, 2026, SOXX lost the most of 48 thematic ETFs tracked daily, $982m.
Coverage
Weekly and monthly lists: 48 funds with daily figures, 29.4% of the group’s net assets. Twelve-month list: 299 funds with SEC filings for every month to May 2026, 91.5% of the group’s net assets
Rank change
Against the last edition of this list: the previous trading day for 1W and 1M, the previous month for 12M. "new" means not in the top 25 last time
How these lists are built
Measure
Net flow: money in less money out, in dollars, over the window, leaving any round trip aside; share of net assets at the start of the window beside it
1 week · Oct 2 to Oct 8, 2026
From daily figures · 12 fundsAny round trip in the window is left aside. A fund whose count ended before the window did carries the day it reaches after its name.
| # | Fund | Name | Net flow | Share of assets | Rank change |
|---|---|---|---|---|---|
| 1 | SOXX | iShares Semiconductor ETF | −$982m | −2.0% | same |
| 2 | IBB | iShares Biotechnology ETF | −$328m | −3.0% | same |
| 3 | ITA | iShares U.S. Aerospace & Defense ETF | −$72.2m | −0.6% | same |
| 4 | XSD | State Street(R) SPDR(R) S&P(R) Semiconductor ETF to Oct 7 | −$41.2m | −1.3% | same |
| 5 | ICLN | iShares Global Clean Energy ETF | −$22.6m | −1.0% | new |
| 6 | XSW | State Street(R) SPDR(R) S&P(R) Software & Services ETF to Oct 7 | −$18.1m | −3.8% | ▼ 1 |
| 7 | BAI | iShares A.I. Innovation and Tech Active ETF | −$17.4m | −0.1% | ▼ 1 |
| 8 | ISTM | iShares Strategic Metals ETF | −$6.0m | −18.3% | ▼ 1 |
| 9 | RING | iShares MSCI Global Gold Miners ETF | −$3.7m | −0.2% | ▼ 1 |
| 10 | CNRG | State Street(R) SPDR(R) S&P Kensho Clean Power ETF to Oct 7 | −$3.4m | −1.9% | ▼ 1 |
| 11 | IFRA | iShares U.S. Infrastructure ETF | −$2.8m | −0.1% | new |
| 12 | MADE | iShares U.S. Manufacturing ETF | −$1.1m | −1.8% | ▼ 2 |
Computed by ETFIQ from issuer daily share counts × prior-day NAV.CSV
1 month · Sep 9 to Oct 8, 2026
From daily figures · 17 funds| # | Fund | Name | Net flow | Share of assets | Rank change |
|---|---|---|---|---|---|
| 1 | BAI | iShares A.I. Innovation and Tech Active ETF | −$601m | −4.2% | same |
| 2 | IDEF | iShares Defense Industrials and Tech Active ETF | −$462m | −10.7% | same |
| 3 | XBI | State Street(R) SPDR(R) S&P(R) Biotech ETF to Oct 7 | −$420m | −3.7% | same |
| 4 | ITA | iShares U.S. Aerospace & Defense ETF | −$246m | −1.9% | ▲ 1 |
| 5 | XME | State Street(R) SPDR(R) S&P(R) Metals & Mining ETF to Oct 7 | −$151m | −3.1% | ▲ 1 |
| 6 | SOXX | iShares Semiconductor ETF | −$142m | −0.3% | new |
| 7 | IFRA | iShares U.S. Infrastructure ETF | −$55.0m | −1.3% | same |
| 8 | IGV | iShares Expanded Tech-Software Sector ETF | −$43.1m | −0.3% | ▼ 4 |
| 9 | XSW | State Street(R) SPDR(R) S&P(R) Software & Services ETF to Oct 7 | −$29.4m | −6.0% | ▼ 1 |
| 10 | XT | iShares Future Exponential Technologies ETF | −$12.7m | −0.3% | ▼ 1 |
| 11 | POWR | iShares U.S. Power Infrastructure ETF | −$8.5m | −1.8% | ▼ 1 |
| 12 | IETC | iShares U.S. Tech Independence Focused ETF | −$5.7m | −0.8% | ▼ 1 |
| 13 | CNRG | State Street(R) SPDR(R) S&P Kensho Clean Power ETF to Oct 7 | −$5.2m | −2.6% | ▼ 1 |
| 14 | ISTM | iShares Strategic Metals ETF | −$2.9m | −9.3% | ▼ 1 |
| 15 | IBLC | iShares Blockchain and Tech ETF | −$2.3m | −2.6% | ▼ 1 |
| 16 | ONLN | ProShares Online Retail ETF 21 of 22 days | −$1.1m | −1.8% | ▼ 1 |
| 17 | MADE | iShares U.S. Manufacturing ETF | −$1.1m | −1.8% | ▼ 1 |
Same basis as the week. Never mixed with the filings list below.CSV
12 months · Jun 2025 to May 2026
From SEC filings · 99 funds · the last month every filer has reportedFilings run about 60 days behind, so this list ends at the latest month every fund in the group has filed, printed in the heading and the title. Rank change is against last month’s edition.
| # | Fund | Name | Net flow | Share of assets | Rank change |
|---|---|---|---|---|---|
| 1 | FDN | First Trust Dow Jones Internet Index Fund | −$2.3bn | · | same |
| 2 | GDXJ | VanEck Junior Gold Miners ETF | −$1.1bn | · | same |
| 3 | SKYY | First Trust Cloud Computing ETF | −$983m | · | same |
| 4 | IHI | iShares U.S. Medical Devices ETF | −$868m | · | same |
| 5 | ARKW | ARK Next Generation Internet ETF | −$324m | · | ▲ 1 |
| 6 | PNQI | Invesco NASDAQ Internet ETF | −$313m | · | ▲ 1 |
| 7 | XT | iShares Future Exponential Technologies ETF | −$285m | · | ▲ 4 |
| 8 | JETS | U.S. Global Jets ETF | −$196m | · | same |
| 9 | ARKF | ARK Blockchain & Fintech Innovation ETF | −$169m | · | same |
| 10 | HACK | Amplify Cybersecurity ETF | −$144m | · | ▲ 7 |
| 11 | PEJ | Invesco Leisure and Entertainment ETF | −$142m | · | ▲ 1 |
| 12 | METV | Roundhill Ball Metaverse ETF | −$129m | · | ▲ 1 |
| 13 | IHAK | iShares Cybersecurity and Tech ETF | −$111m | · | ▼ 3 |
| 14 | WCLD | WisdomTree Cloud Computing Fund | −$105m | · | same |
| 15 | GGME | Invesco Next Gen Media and Gaming ETF | −$95.6m | · | ▲ 3 |
| 16 | PHO | Invesco Water Resources ETF | −$84.8m | · | ▲ 4 |
| 17 | CLOU | Global X Cloud Computing ETF | −$82.5m | · | ▼ 1 |
| 18 | XSW | State Street(R) SPDR(R) S&P(R) Software & Services ETF | −$80.7m | · | ▲ 6 |
| 19 | ARKG | ARK Genomic Revolution ETF | −$77.8m | · | new |
| 20 | PBW | Invesco WilderHill Clean Energy ETF | −$73.6m | · | ▼ 5 |
| 21 | IPAY | Amplify Digital Payments ETF | −$73.1m | · | ▲ 2 |
| 22 | UFOX | Defiance Space and Connective Tech ETF | −$72.8m | · | ▼ 3 |
| 23 | HERO | Global X Video Games & Esports ETF | −$70.6m | · | new |
| 24 | ESPO | VanEck Video Gaming and eSports ETF | −$69.6m | · | new |
| 25 | SRVR | Pacer Data & Infrastructure Real Estate ETF | −$65.9m | · | same |
SEC Form N-PORT, item B.6, monthly, every fund with a filing for every month of the window.CSV
Other flow rankings
ETFIQ, The thematic ETFs that lost the most, data as of Oct 8, 2026. https://etfiq.com/flows/rankings/desk/themes/outflows/
ETFIQ is an independent publisher and makes no recommendations; a rank is a sort of one published figure, not an opinion.