Gentherm Incorporated (THRM) Cash Flow Statement

The extraordinarily high cumulative conversion ratio is largely mechanical: D&A runs at roughly $13-15M per quarter against a company generating only single-digit millions in net income, so depreciation add-backs dwarf the actual earnings base. The concerning pattern is that this conversion advantage is not being preserved in FCF—2026Q1 posted negative operating cash flow of -$5.0M on $4.2M of net income, and 2026Q2 generated only $7.3M OCF, suggesting the working capital and cost pressures flagged in prior income statement analysis are eroding the cash cushion that depreciation insulation once provided. Investors should monitor whether the structural gap between operating margin (3.5%) and net margin (-0.6%) noted in 2026Q3 represents recurring cash-relevant charges that will further compress conversion going forward.

The sequential decline is not driven by a single factor but rather the convergence of rising working capital consumption (2026Q1 saw -$23.1M WC outflow) with already-thin operating profitability, producing FCF of -$10.7M in Q1 2026—the worst single-quarter result in the ten-quarter window. The partial recovery to $25.4M in 2026Q3 was driven substantially by a $19.8M working capital inflow and the $34.2M acquisition spend being classified below the operating line, which masks the underlying operating cash compression. Given that the auto sector typically faces seasonal WC outflows in Q1-Q2, the pattern suggests structural vulnerability rather than mere seasonality, consistent with the gross margin erosion identified in the income statement work.

The magnitude and speed of the capex reduction is striking: 2026Q1's $5.7M capex was the lowest quarterly figure in the entire ten-quarter dataset and represents only 1.4% of revenue—well below the maintenance-level spending typically required by an industrial manufacturer with $13-15M in quarterly D&A. If D&A of $15.5M in 2026Q3 continues to outpace CapEx of $8.4M, the company is not replacing its asset base at book value, which may be a deliberate capital discipline choice but could constrain the operational capacity needed to convert record revenue growth into profitability. Given that management has discussed scaling into battery thermal management and home/office markets, the capex trajectory warrants monitoring for signs of deferred investment rather than genuine efficiency gains.

The magnitude of these swings relative to a company generating $37-56M in peak operating quarters suggests significant receivable and inventory volatility tied to OEM launch timing and semiconductor procurement patterns. The 2026Q1 outflow of -$23.1M and subsequent -$14.9M in Q2 coincided with the weakest OCF quarters, while the $19.8M inflow in 2026Q3 likely contributed materially to that quarter's positive $33.7M operating cash flow—potentially masking underlying operating deterioration. Given the thin net margins and cost pressures identified in prior analysis, any persistent WC build tied to inventory accumulation would be particularly concerning for working capital efficiency.

The buyback pattern is notable: heavy activity in 2024 ($21.7M in Q2, $19.9M in Q3, $10.0M in Q4) tapered to near-zero by 2025Q4, and the $1.9M shown in 2026Q2 appears to be a minor repurchase rather than a resumption of the prior program. The pivot to the $34.2M acquisition in 2026Q3—representing roughly 17% of TTM revenue—suggests management is prioritizing growth optionality over shareholder returns at a time when net income is deteriorating. With zero dividends and limited remaining buyback capacity given the $1.22% net margin, investors should assess whether this M&A activity generates adequate returns relative to the ~$25M in cumulative FCF that would otherwise have been available to equity holders.