The 40.8% gross margin in 2026Q2 is a dramatic departure from the 29% range seen in the prior four quarters, as reported in the quarterly data. This inflection may reflect a one-time benefit, such as lower fuel costs or a favorable revenue mix, rather than a durable improvement. Operating margin of 18.7% is consistent with recent levels, implying that the gross margin jump did not flow through to operating income, which could indicate offsetting cost pressures or accounting reclassifications. Investors should monitor whether this margin level persists, as mean reversion to the 29% range would significantly alter earnings power.

ROIC has declined from a peak of 3.5% in 2024Q3 to 2.9% in 2026Q2, while ROE has similarly weakened from 9.9% to 7.9% over the same period, as per the quarterly data. This compression appears driven by the $6.7B acquisition outflow in 2024Q4 and the associated goodwill, which now represents over 30% of total assets, as noted in the balance sheet analysis. The decline suggests that the Stericycle deal has yet to generate returns that offset the increased capital base, and investors should monitor whether integration synergies materialize to lift ROIC back toward historical levels.

The CCC improvement is driven by a reduction in DSO from 59 to 56 days and a slight increase in DPO from 41 to 44 days, as per the quarterly figures, reflecting better collection and payment practices. Asset turnover remains low at 0.15, consistent with the capital-intensive nature of the waste industry, but the stability suggests that the expanded asset base from Stericycle is not yet generating proportional revenue. The efficiency gains in working capital are modest but positive, indicating that management is managing the balance sheet tightly even as it integrates a large acquisition.

The D/E ratio of 2.35 and D/EBITDA of 11.51 are significantly higher than the peer average, reflecting the debt-funded Stericycle acquisition, as reported in the balance sheet data. However, interest coverage of 5.39 in 2026Q2 is up from 4.44 in 2025Q3, indicating that operating income is growing faster than interest expense, which may be due to lower effective interest rates or improved earnings. The elevated leverage leaves limited headroom for further debt-funded M&A, and any rise in interest rates could pressure coverage ratios, making refinancing risk a key monitorable.

The current ratio has been below 1.0 for five consecutive quarters, as per the balance sheet data, suggesting that current liabilities exceed current assets, which is typical for companies with strong operating cash flow but still a sign of limited short-term buffer. The quick ratio of 0.87 indicates that even excluding inventory, the company cannot cover short-term obligations with liquid assets alone. This reliance on ongoing cash generation is supported by the robust OCF/NI ratio of 2.1x, but any disruption in cash flow, such as a prolonged downturn or integration hiccup, could expose the company to liquidity stress.