Amongst talk of Double Irish Sandwiches and Bermuda tax havens, a Senate inquiry has grilled Apple, Google and Microsoft on where all their Australian profits and revenues end up.
Electronics giant estimates operating profit declined 30 percent year-over-year.
Don't count the struggling smartphone maker out yet. BlackBerry CEO John Chen's housecleaning is starting to yield benefits. The next step: stabilizing its collapsing revenue.
Apple's iOS now controls approximately 89 percent of the smartphone industry's worldwide operating profits.
Light at the end of the financial tunnel? Sony sees a brighter future riding its PlayStation, along with movies, music and components such as image sensors.
The phone maker says the jump in fourth-quarter revenue underscores the success of its plan to "offer tailored product mixes."
The game maker behind the Call of Duty franchise logs a record fiscal fourth quarter, but says the strong US dollar will weigh on overseas sales.
Lenovo's Q3 net income declined 4.6 percent to $253 million, but the company came in better than expected after its Motorola acquisition.
The e-commerce company posts a $214 million profit for the holiday season. CEO Jeff Bezos says Prime membership got a boost of more than 50 percent in the quarter.
The search giant continues to pull in billions from its search and advertising business, even as the company looks for other ways to make money.