Twitter Inc. (NYSE:TWTR)’s head of news, Vivian Schiller, said she is stepping down, the latest in a string of departures from the company’s executive team. Twitter Inc (NYSE:TWTR) belongs to Technology sector. Its net profit margin is -87.60% and weekly performance is 10.71%. On last trading day company shares ended up $55.42. Twitter Inc (NYSE:TWTR) distance from 50-day simple moving average (SMA50) is 14.35%.

Williams Companies, Inc. (NYSE:WMB) Williams Partners L.P. WPZ, +0.29% and Access Midstream Partners, L.P.ACMP, +0.44% plan to jointly host a Q&A live webcast on Thursday, Oct. 30, at 9:30 a.m. EDT following the announcement of their respective third-quarter 2014 financial results after the market closes on Wednesday, Oct. 29. Williams Companies, Inc. (NYSE:WMB) shares decreased -0.28% in last trading session and ended the day at $53.85. WMB Gross Margin is 56.30% and its return on assets is 1.30%. Williams Companies, Inc. (NYSE:WMB) quarterly performance is -5.96%.

On October 2, Citigroup Inc (NYSE:C) will provide relevant documents to one of its shareholders, Oklahoma Firefighters Pension Fund, which is suing the bank for fraudulent loans worth $430 million issued by one of its units, Banco Nacional de Mexico SA (BANAMEX). A majority of these loans were issued to a Mexican oil company, Oceanografia. On 08 October, Citigroup Inc. (NYSE:C) shares increased 2.48% and was closed at $52.54. C EPS growth in last 5 year was 15.60%. Citigroup Inc. (NYSE:C) year to date (YTD) performance is 0.88%.

Goldman Sachs cut shares of Silver Spring Networks Inc (NYSE:SSNI) from a buy rating to a neutral rating in a research note issued to investors on Wednesday,TheFlyOnTheWall.com reports. Silver Spring Networks, Inc. (NYSE:SSNI) ended the last trading day at $8.98. Company weekly volatility is calculated as 4.62% and price to cash ratio as 3.47. Silver Spring Networks, Inc. (NYSE:SSNI) showed a weekly performance of -1.86%.

Collectors Universe Inc (NASDAQ:CLCT) Director Van D. Simmons sold 10,000 shares of the stock in a transaction dated Tuesday, September 9th. The shares were sold at an average price of $20.43, for a total transaction of $204,300.00. Following the sale, the director now directly owns 187,539 shares in the company, valued at approximately $3,831,422. Collectors Universe Inc. (NASDAQ:CLCT) shares increased 2.14% in last trading session and ended the day at $22.92. CLCT Gross Margin is 62.50% and its return on assets is 27.50%. Collectors Universe Inc. (NASDAQ:CLCT) quarterly performance is 21.59%.