According to Eric Balchunas, the European Defense ETF traded in U.S. markets has surged approximately 60% year-to-date, reflecting heightened investor interest in defense-related assets amid geopolitical tensions (source: Eric Balchunas, Twitter, June 3, 2025). This sharp rally may signal a shift in institutional risk appetite, potentially impacting capital flows into risk-on assets like cryptocurrencies, as traders assess portfolio diversification strategies in response to global macroeconomic trends.