Apple Inc (NASDAQ:AAPL) has made a “promising start” to enhancing its antitrust compliance program after being found liable last year for conspiring to raise e-book prices, but more work is required, a court-appointed monitor said Monday. Apple Inc. (NASDAQ:AAPL) stock performance was -0.71% in last session and finished the day at $517.96. Traded volume was 9.52million shares in the last session and the average volume of the stock remained 10.95million shares. The beta of the stock remained 1.01. Apple Inc. (NASDAQ:AAPL) insider ownership is 0.04%.

Aston Martin is the rare global luxury-automaker that doesn’t belong to a larger manufacturing group. The company said last year that Germany’s Daimler AG will own as much as 5 percent of Aston Martin as part of a deeper agreement to share technology with the British sports-car maker. Daimler is an investor in electric-car maker Tesla Motors Inc. (NASDAQ:TSLA), which aims to begin deliveries in China this month. Tesla Motors Inc (NASDAQ:TSLA) dropped -2.11 percent to $193.91 Tuesday on volume of 13.67million shares. The intra-day range of the stock was $184.32 to $199.29. Tesla Motors Inc (NASDAQ:TSLA) has a market capitalization of $23.89billion.

Finnish handset maker Nokia Corporation (ADR) (NYSE:NOK)’s first ever Android-based smartphone Nokia Corporation (ADR) (NYSE:NOK) X has received a price cut in India, barely a month after the launch of the handset in the country. Nokia Corporation (ADR) (NYSE:NOK)’s stock on Apr 15, 2014 reported a decrease of -2.59% to the closing price of $7.15. Its fifty two weeks range is $3.02 -$8.20. The total market capitalization recorded $26.54billion. The overall volume in the last trading session was 26.85million shares. In its share capital, NOK has 3.80billion outstanding shares.

BlackBerry Ltd (NASDAQ:BBRY) said on Tuesday it bought a minority stake in privately held healthcare IT firm NantHealth, a move that offers a glimpse into the type of niche markets the smartphone maker is targeting as it attempts to engineer a turnaround. On Tuesday, shares of BlackBerry Ltd (NASDAQ:BBRY) advanced 0.98% to close the day at $7.21. Company return on investment (ROI) is -8.45% and its monthly performance is recorded as -21.37%. BlackBerry Ltd (NASDAQ:BBRY) quarterly revenue growth is -13.45%.