Power Integrations, Inc. (POWI) Cash Flow Statement

The OCF/NI ratio reached 4.27 in Q2 2026 and 6.07 in Q1 2026, far above the typical 1.0, suggesting that reported net income understates cash generation. This gap is driven by significant non-cash charges like D&A and SBC, which averaged over $10M per quarter, and favorable working capital swings. Investors should note that while earnings quality appears high, the volatility in net income (e.g., a loss in Q3 2025) makes the cash flow a more reliable indicator of underlying performance.

FCF grew from $11.6M in Q1 2024 to $35.7M in Q2 2026, with margins expanding from the low teens to 30%, despite revenue plateauing around $100M. This suggests that cost discipline and working capital management are driving cash flow growth even as top-line growth stalls. The FCF trajectory appears stable, but the sustainability of the 30% margin is uncertain given the historical volatility and the company's fixed-cost base.

CapEx averaged roughly $5M per quarter, which is modest relative to revenue and D&A (averaging $8M), suggesting that maintenance capex is adequately covered and that growth capex is limited. This low capital intensity supports strong FCF conversion, but it may also indicate limited investment in future capacity, which could constrain growth if demand picks up. The stable capex/revenue ratio suggests a mature business model with predictable cash needs.

In Q2 2026, working capital provided $3.6M, while in Q4 2024 it consumed $11.8M, indicating that cash flow is sensitive to inventory and receivable management. The positive swings in recent quarters (e.g., +$9.1M in Q2 2025) have inflated OCF, but this is not a sustainable source of cash. Investors should monitor whether working capital turns negative again, which could pressure FCF despite stable earnings.

In Q2 2026, dividends of $23.8M exceeded FCF of $35.7M, leaving little for other uses, and buybacks have been sporadic but large (e.g., $42.4M in Q3 2025). This suggests that management is returning capital to shareholders, but the payout ratio is high relative to FCF, which may limit flexibility. The company appears to be prioritizing shareholder returns over balance sheet accumulation, which could be a concern if cash flows weaken.

The cumulative OCF/NI ratio is approximately 3.8, driven by non-cash charges and working capital benefits. This divergence suggests that earnings quality is high, but it also implies that net income may not fully reflect the company's cash-generating ability. However, the gap could narrow if working capital swings reverse, so investors should not extrapolate this ratio indefinitely.