The first trading session of the fourth quarter is off to a lower start ahead of economic data including the monthly jobs report later this week. Janus Capital (JNS) , the already giant money manager, headlined by "Bond King" Bill Gross, is getting even bigger after London's Henderson Group announced it's buying the firm. Together the combined fund will manage an estimated $320 billion. Outdoor-equipment retail chain Cabela's (CAB) . Bass Pro Shops is buying the Connecticut-based retailer for $5.5 billion, or just over $65 a share in cash. Sources speaking to Bloomberg say Bass Pro edged out competition from the private equity firm Sycamore Partners. And, Tesla (TSLA) - Get Report shares are higher after third quarter sales surprised to the upside. CEO Elon Musk's sales push has helped propel the electric carmaker's quarterly shipment numbers ahead of estimates. TheStreet's Jeanne Yurman has details from Wall Street.