McKesson (MCK) is down about 3% in Monday trading as investors react to a new financing disclosure showing subsidiaries entered into a credit agreement for senior secured facilities, including a $750 million term loan due 2031, a $250 million term loan due 2028, and a $1.0 billion revolving credit facility maturing in 2031. The filing put fresh focus on funding and leverage mechanics, which can pressure shares even when operating fundamentals are steady.

New secured borrowing can raise questions about the company’s near-term cash needs, future interest expense, and how flexible management will be on capital allocation priorities like share repurchases. Even when such facilities are precautionary or refinancing-related, the appearance of incremental debt capacity and secured structures can trigger risk-off positioning, particularly after a stretch of strong performance when investors are more sensitive to balance-sheet headlines.

The stock has recently been in a downtrend over the past several sessions, suggesting profit-taking and de-risking have already been underway and today’s financing disclosure added a clear catalyst for another leg lower. Separately, McKesson’s last dividend went ex-dividend on March 2, 2026 and was paid April 1, 2026, so today’s drop is not a dividend-driven mechanical move.