31. The Amex / Oscar Gruss Index closed at 158.84 Friday, down from 161.37 Thursday. 32. The Amex / Oscar Gruss Index rose to 158.71 on Friday from 158.53 on Thursday. 33. Based in New York, Oscar Gruss has a well-established business in the shares of Israeli companies. 34. The Amex / Oscar Gruss Index rose to 147.83 on Friday from 145.12 on Thursday. 35. In 2013, Elizabeth Arden, Inc . named Gruss the brand's first-ever Style Director. 36. Gruss served as a Piperlime guest contributor when the Gap Inc . brand refreshed its website in fall 2014.37. From 1982 to 1986 Peter Gruss was a professor at the University of Heidelberg's Institute of Microbiology. 38. The Amex / Oscar Gruss Israel Index rose to 150.23 on Friday from 149.67 on Thursday. 39. The Amex / Oscar Gruss Israel Index fell to 152.83 on Friday from 156.17 on Thursday. 40. Mrs . Gruss said it was the only time she had ever invited people over who were not personal friends.