Which of the following is not an indication that a firm has a healthy credit rating?

A healthy credit rating is often assessed through various financial indicators that reflect a firm's ability to meet its obligations. A positive trend of growth can be a good sign in many contexts; however, if a company is not stable, this raises concerns about its long-term viability and the risks associated with lending to or investing in the firm.

Stability is crucial because it indicates that the growth is sustainable rather than temporary or affected by external factors. If a company is growing but also faces significant volatility or fluctuating revenues, lenders and investors may be less confident in the company's future performance. This analysis highlights the importance of not only growth itself but the manner in which it occurs.

In contrast, a good track record of paying obligations, a robust balance sheet with adequate net worth, and a history of profitability are all strong indicators of a company’s reliability and financial health. These factors suggest a firm is consistently meeting its responsibilities and is positioned well against its debts, making them indicative of a healthy credit rating.