Should investors be scared as another heavy week of earnings kicks off on Halloween? Quarterly results are due out from numerous bellwether firms in the semiconductor, insurance, pharmaceutical, healthcare, energy and gaming industries. The list of well-known firms announcing financial figures includes restaurant names Restaurant Brands (QSR), Brinker International (EAT) and Yum! Brand (YUM) as well as leisure stalwarts Marriott (MAR), Hyatt Hotels (H), and Royal Caribbean (RCL). Gaming industry giants Penn Entertainment (PENN), Caesars Entertainment (CZR) and DraftKings (DKNG) are also expected to report. Pharmaceutical companies are well represented with Pfizer (NYSE:PFE) and Eli Lilly (LLY) set to announce. Energy provides another key theme, including reports from Cheniere Energy (LNG), ConocoPhillips (COP) and BP (NYSE:BP). Entertainment players like Fox Corporation (FOXA) and Paramount Global (PARA) are on the agenda as well.Below is a curated list of earnings reports due for the week of October 31 to November 4:Monday, October 31ON Semiconductor (ON)Automotive-focused computer chip company ON Semiconductor (ON) is due to post its third quarter results in pre-market action on Monday. The stock has been a significant outperformer in the past year, rising nearly 40% as compared to a nearly 20% decline in the S&P. A Seeking Alpha survey of analyst earnings and revenue revisions reveals growing optimism -- EPS and revenue...