Energy Recovery, Inc. (ERII) Cash Flow Statement

The divergence is extreme in the seasonal quarters: Q1 2026 delivered $21.0M of OCF on a $12.3M net loss (ratio of -1.72), while Q4 2025 posted $26.9M of net income but only $7.1M of OCF (ratio of 0.26). This pattern suggests ERII's reported earnings and its cash receipts are decoupled by roughly one or two quarters of billing lag, meaning quarterly net income is a poor proxy for economic performance and investors should anchor on OCF instead. That said, the quality of the conversion looks more like a financing-float phenomenon than operating outperformance; when working capital swings normalize, the OCF-to-NI relationship may compress materially.

The seasonality is textbook: Q4 quarters (2024 and 2025) show working capital outflows of -$19.3M and -$21.6M consistent with building receivables on large shipment bookings, while Q1 quarters show inflows of +$11.5M, +$18.7M, and +$29.0M consistent with collecting on those Q4 billings. The concerning signal is that the magnitude of the Q1 2026 inflow ($29.0M) accelerated even as revenue contracted roughly 40% year over year in the first half — investors should scrutinize whether this reflects genuine collection efficiency, extended payment terms offered to customers, or pull-forward of prior-period receivables, as the first two interpretations would flatter near-term cash at the expense of durability.

The trajectory is misleading on a headline basis: 2025Q3 posted -$3.5M of FCF while 2026Q1 posted +$20.2M, but the swing is explained by a +$40.5M working capital swing between those two quarters rather than any change in unit economics. The FCF margin print of 128.6% in Q2 2026 and 130.0% in Q1 2025 are mathematical artifacts of near-zero revenue denominators against lumpy WC inflows, and should not be extrapolated. On a trailing basis the underlying trend is genuinely positive, but with revenue now contracting sharply and operating expenses reportedly holding near a $14-16M quarterly fixed base, the durability of this FCF profile depends on revenue stabilization that has not yet materialized.

The repurchase cadence is notable because it appears detached from reported profitability — $4.5M of buybacks in Q1 2025 coincided with a $9.9M net loss, and $10.7M of buybacks in Q1 2026 coincided with a $12.3M net loss. This suggests management is treating the seasonal working capital inflows as a recurring funding source for buybacks, which is a defensible use of genuinely excess cash but becomes a capital-allocation risk if the receivables cycle ever fails to unwind as expected. The absence of any dividend program implies a preference for discretionary repurchases over a fixed commitment, which preserves flexibility but also means returns to shareholders are effectively at management's discretion quarter to quarter.