SPDR S&P 500 ETF (SPY): ETF Research Reports The “core” read — stripping out volatile food and energy costs — reached +0.3%, which is just below the +0.4% a month ago. Pre-market futures are modestly in the green this morning, perhaps due to the pre-PPI (and Consumer Price Index [CPI] report, which is out tomorrow) sell-off being a bit heavy handed.