Shares of the following companies may have unusual moves in U.S. trading tomorrow. Stock symbols are in parentheses, and prices are as of 4:40 p.m. in New York.

Standard & Poor’s 500 Index futures expiring in June fell 0.6 percent to 1,350.

Cabot Corp. (CBT) : The board of directors at the maker of carbon black used in rubber tires boosted its quarterly dividend to 20 cents a share from 18 cents.

JDA Software Group Inc. (JDAS) : The maker of software used to track goods sent to retailers’ shelves filed to delay its 10-Q report. The Scottsdale, Arizona-based company said it is still addressing matters on a prior Securities and Exchange Commission probe and sees recording miscellaneous adjustments.

JPMorgan Chase & Co. (JPM) fell 0.8 percent to $36.68 after losing 9.3 percent in the regular trading session. The largest and most profitable U.S. bank had its credit grade lowered one level by Fitch Ratings after disclosing a $2 billion trading loss. The lender’s long-term issuer default rating was cut to A+ from AA-, and the short-term grade was lowered to F1 from F1+.

NRG Energy Inc. (NRG) : Moody’s Corp. revised the Princeton, New Jersey-based power producer’s rating outlook to negative from stable.

To contact the reporter on this story: Inyoung Hwang in New York at ihwang7@bloomberg.net

To contact the editor responsible for this story: Nick Baker at nbaker7@bloomberg.net