Microsoft Corp. is on track for its longest streak of daily losses in more than a decade as growing caution about the artificial intelligence trade continues to pressure big tech stocks.

Shares fell as much as 0.8% on Friday, and if they end the trading session lower it would be the longest period of declines for the software company since a nine-day drop that ended in November 2011. The stock has declined 8.6% over the eight-day stretch, erasing nearly $350 billion in market valuation.