(The Day Ahead is an email and PDF publication that includes the day's major stories and events, analyses and other features. To receive The Day Ahead, Eikon users can register at . Thomson One users can register at RT/DAY/US. All times in ET/GMT) Symantec Corp, best-k**wn for its **rton antivirus software, is expected to report first-quarter earnings slightly below analysts' average estimate, according to Thomson Reuters StarMine. While cybersecurity companies are riding a wave of enterpri
