Proficio Capital Expands Holdings in iShares Floating Rate Bond ETF Proficio Capital Partners increased its stake in the iShares Floating Rate Bond ETF by 10.1%, acquiring 20,780 additional shares. The fund now owns 227,023 shares, valued at $11.55 million. The ETF’s price remains stable, with a 52-week range of $50.76 to $51.10.3