US July Producer Price Index (PPI) came in flat at 0.0% — well below the 0.2% economists expected — following a soft CPI print the day before. Markets repriced fast: the probability of a September Fed rate hike dropped from 55% a week ago to 35%, the S&P 500 and Russell 2000 hit record highs, and bond yields fell.
Two inflation prints in two days, and suddenly the cost of capital conversation changes for every company on the planet.
Here is how a CFO reads this. The PPI — Producer Price Index — measures what businesses pay upstream: raw materials, freight, factory inputs. It is the canary before the canary. If PPI cools, CPI usually follows. And if CPI cools, the Fed has less reason to hike. Less reason to hike means lower interest rates ahead. Lower rates mean a lower risk-free rate. And a lower risk-free rate directly compresses WACC — Weighted Average Cost of Capital — which is the blended rate a company must earn across its debt and equity to create value.
Why does WACC matter so viscerally? Because every DCF model, every investment decision, every 'should we build this factory' question runs through it. When WACC drops even 50 basis points (0.5%), the present value of future cash flows jumps — sometimes by 10–15% on a long-duration asset. That is why the S&P 500 hit a record the same afternoon.
A CFO would not celebrate yet, though. Annual PPI is still running at 4.7%. Services inflation remains sticky. And geopolitical stress in the Strait of Hormuz could reprice oil — and therefore PPI — overnight. One good print is relief. Two is a trend. Three is a planning assumption.
Watch what a CFO watches: not the headline number, but what it does to their cost of debt on the next refinancing. That is the real scorecard.
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