...Osaic Holdings Inc.'s (formerly Advisor Group Holdings Inc.) private equity ownership has resulted in what we consider aggressive financial management, including a lack of tangible equity, fairly high debt leverage and modest debt service coverage. That said, EBITDA has been bolstered by increased cash sweep revenue from higher short-term interest rates and, to a lesser extent, recent acquisitions, which we expect to lower debt-to-EBITDA ratio to about 5.5x in 2023, down substantially from over 8.0x at the end of 2022. Even with this improvement, we continue to see the firm's private equity ownership and aggressive financial management as a rating constraint because it entails an acquisitive growth strategy, a high debt burden, and volatile debt service coverage. Osaic has limited credit and market risk exposure and appetite. This is because the firm doesn't hold securities inventories and doesn't self-clear its client's securities positions or transactions....