SP 500 Edges Higher as Healthcare and Tech Lead Communication Lags Market Capitalization of Six Top10 Firms Surges by 74111 Crore Reliance Industries Leads Gains US Retail Sales Stall in December Signaling Potential Economic Slowdown Ebola Risk in DR Congo Raises Concerns for Regional Markets and Supply Chains POET Technologies Expands Operational Footprint Shares Surge 13 ECB Signals No Urgency to Correct June Rate Hike Speculation Stoking Market Expectations Analyst Mehul Kothari Highlights Yes Bank PNB Bandhan Bank as Stocks Under 200 Amid Market Caution