Asian stocks slip on tech jitters; oil prices ease

Asian stocks fell Tuesday while oil prices declined after US threats of an "economic D-Day" against Iran proved underwhelming. Treasury yields retreated from recent highs on reports the department may use its cash account to fund debt buybacks. Technology shares weighed on markets ahead of Nvidia's earnings Wednesday, with investors wary of high expectations. Analysts forecast quarterly revenue nearly doubling to $92 billion. Alibaba's $10.2 billion share sale at a steep discount and Samsung's disappointing shareholder return plan also dampened sentiment. The US warned countries to cut trade ties with Iran or face secondary sanctions, but the Treasury refrained from imposing measures. Brent crude slipped 0.1% to $92.08 a barrel. The dollar held steady, while gold rose 0.5% to $4,675.51 an ounce.