Shares of electronics manufacturer Jabil Inc. are down 8% in Friday morning trading, reversing initial after-hours gains following the company's latest earnings report. J.P. Morgan analyst Paul Coster lowered his price target on the stock after the results came out, writing that the company reported "strong revenues, and issued guidance that aligns with F4Q EPS expectations on continued revenue momentum" but posted weaker-than-expected cash flow. He sees the cash flow numbers reflecting the company's working-capital investment spending and wrote that the company's margins were "weighed down by supply constraints for materials and components." Coster has an overweight rating on the stock, which closed near $30 on Thursday. Shares are up 0.8% over the past 12 months, while the S&P 500 has gained 14.