To estimate the S&P adjusted leverage trend for VERBUND AG, we must calculate the ratio of Net Debt to EBITDA for 2021 (the period ending Jan 1, 2022) and 2022 (the period ending Jan 1, 2023).

**1. Calculate Net Debt for 2021 and 2022:**
*   **Net Debt 2021:**
    *   Total Financial Liabilities: Noncurrent Financial Liabilities (1,202,154,000) + Current Financial Liabilities (84,056,000) = 1,286,210,000 EUR
    *   Less Cash and Cash Equivalents: 49,203,000 EUR
    *   Net Debt 2021 = 1,286,210,000 - 49,203,000 = 1,237,007,000 EUR
*   **Net Debt 2022:**
    *   Total Financial Liabilities: Noncurrent Financial Liabilities (1,834,155,000) + Current Financial Liabilities (1,462,453,000) = 3,296,608,000 EUR
    *   Less Cash and Cash Equivalents: 318,562,000 EUR
    *   Net Debt 2022 = 3,296,608,000 - 318,562,000 = 2,978,046,000 EUR

**2. Calculate Net Debt / EBITDA Ratio:**
*   **2021 Ratio:**
    *   EBITDA (2021-01-01 to 2022-01-01) = 1,578,959,000 EUR
    *   Ratio 2021 = 1,237,007,000 / 1,578,959,000 ≈ 0.783x
*   **2022 Ratio:**
    *   EBITDA (2022-01-01 to 2023-01-01) = 3,160,679,000 EUR
    *   Ratio 2022 = 2,978,046,000 / 3,160,679,000 ≈ 0.942x

**3. Evaluate the Trend:**
*   Difference = Ratio 2022 - Ratio 2021 = 0.942 - 0.783 = 0.159x.
*   Since the absolute difference (0.159x) is less than 0.3x, the trend is considered "Improving" based on the provided logic (the gap is lower than 0.3x).

<answer>Improving</answer>