Dow shares fell 17.5% to $25.07 on Thursday, while the S&P 500 gained 0.1% and the Dow Jones Industrial Average fell 0.7%. The cut also hit shares of chemical-making peer LyondellBasel, whose stock fell 9.7% to $60.70.

Dow Inc. posted a second-quarter loss of $801 million, cut its dividend by 50 percent and reported sharp declines in resin and chemical sales amid weak global demand and trade uncertainty.

Dow’s stock tumbles toward a five-year low after dividend was cut in half, and quarterly losses were much wider than expected.