Proficio Capital Partners Expands Holdings in Vanguard Tax-Exempt Bond ETF Proficio Capital Partners LLC has acquired 34,740 shares of Vanguard Tax-Exempt Bond ETF, valued at approximately $1.74 million, during Q4 2024. This move aligns with a broader trend of institutional interest in municipal bond ETFs, which offer tax-exempt income and are gaining traction among investors seeking stability.1