According to @EricBalchunas, there is a new filing for a -2x Quantum ETF, source: @EricBalchunas on X, Nov 4, 2025. He reports that inverse ETF filings have been rare, source: @EricBalchunas on X, Nov 4, 2025. He adds that, given the pullback, he expects more inverse filings may follow, source: @EricBalchunas on X, Nov 4, 2025.