Century Aluminum Company (CENX) Cash Flow Statement

The OCF/NI ratio of 0.67 in Q2 2026, down from 0.20 in Q1, indicates that a substantial portion of net income is not converting to cash. This gap likely stems from mark-to-market derivative gains and inventory adjustments, as noted in the company's accounting nuances. Investors should monitor whether this divergence persists, as it may signal lower earnings quality despite strong reported profitability.

The positive FCF trajectory is a marked improvement from the negative FCF in most of 2024 and early 2025, driven by record gross margins and controlled capex. However, the sustainability is questionable given the cyclical nature of aluminum prices and the potential for power cost increases. The FCF margin of 14.4% is well above the peer average of ~2.5%, but this may be a cyclical peak rather than a structural shift.

The increase in capex suggests some investment in maintenance and possibly growth, but the capital intensity remains low relative to the asset base. Given the aging smelters and the need for pot relining, this level of capex may be insufficient to sustain operations long-term. The company's focus on cash preservation is evident, but investors should monitor whether deferred maintenance becomes a larger issue.

The persistent negative working capital changes, totaling over $200M in the last two quarters, suggest that rising aluminum prices are inflating inventory values and receivables, consuming cash. This is typical in a cyclical upswing but could reverse quickly if prices fall. The company's ability to manage payables and collections will be critical to sustaining positive FCF.

The absence of shareholder returns is consistent with a company prioritizing balance sheet strength and operational flexibility. With a low debt/equity ratio, there is potential for future capital returns, but management appears focused on preserving cash for cyclical downturns. The recent positive FCF may eventually allow for shareholder returns, but no such plans have been announced.

The $570M cumulative gap suggests that reported earnings have not translated into cash, likely due to non-cash items like derivative gains and inventory adjustments. This divergence raises concerns about the quality of earnings and the sustainability of the current profitability. Investors should monitor whether future quarters close this gap or if it widens further, as it may indicate that earnings are not backed by real cash generation.