Cybersecurity and Momentum ETFs Draw Hundreds of Millions in Fresh Cash While Homebuilders and Australia Funds Bleed Assets

A snapshot of week-over-week ETF flow data as of August 18, 2026 shows notable divergence in investor appetite across sectors. On the inflow side, the First Trust Nasdaq Cybersecurity ETF (CIBR) attracted approximately $244.5 million, a 1.6% increase in shares outstanding, while the Invesco S&P 500 Momentum ETF (SPMO) pulled in roughly $234.3 million, a 1.0% gain. The Capital Group Growth ETF (CGGR) added about $239.9 million, also a 1.0% rise, and the Avantis U.S.

Large Cap Value ETF (AVLV) saw the largest inflow of the group at approximately $359.4 million, a 2.0% increase. The Schwab Core Bond ETF (SCCR) posted the sharpest percentage gain, growing assets by roughly $213.3 million, a 13.9% jump week over week. On the outflow side, the SPDR S&P Homebuilders ETF (XHB) shed approximately $108.2 million, a 6.8% decline, while the iShares MSCI Australia ETF (EWA) lost roughly $124.1 million, an 8.6% decrease.

The Gotham Enhanced 500 ETF (GSPY) recorded the steepest percentage outflow, dropping about $113.2 million or 13.1% week over week. The pattern suggests investors rotated toward cybersecurity, momentum, large-cap value, and core fixed income while pulling back from homebuilders and international equity exposure.