onsemi's lower capex accounts for 95% of nine-month free cash flow gain
The latest earnings tables show a larger year-to-date free-cash-flow increase than operating-cash increase. The third quarter tells a different story.
More free cash flow can mean more cash coming in, less money going into equipment, or a combination of both. onsemi's latest results make that distinction especially useful: most of its nine-month improvement comes from the spending side of the calculation.
In its November 2 earnings release, onsemi (Nasdaq: ON) reported nine-month free cash flow of $1,131.2 million, up from $933.2 million. Its non-GAAP measure subtracts capital expenditures from operating cash. All figures here are in US dollars.
Follow the arithmetic
For the nine months ended October 2, 2026, operating cash was $1,215.2 million, against $1,205.3 million in the comparable period ended October 3, 2025. Payments for property, plant and equipment fell to $84 million from $272.1 million.
Using those reported figures, TrendyVest calculates a $198 million free-cash-flow increase: $9.9 million more operating cash plus $188.1 million less capital spending. The spending reduction accounts for 95% of that improvement. This is a reconciliation of the company's measure, rather than an estimate of economic causation.
The quarter is a separate comparison
Third-quarter operating cash rose to $516.4 million from $418.7 million a year earlier. That is meaningful growth in cash generation over the shorter period. It should not be confused with the much smaller nine-month operating-cash increase.
The distinction prevents two overreactions. The year-to-date free-cash-flow gain does not imply equally strong operating-cash growth. Lower capital spending also does not, by itself, prove that onsemi is underinvesting or that current spending levels will persist.
For investors, the next question is how investment spending fits the company's future manufacturing needs. Cash retained today is useful. Assessing whether it supports durable growth requires evidence about tomorrow's capacity, alongside today's reconciliation.