After a mostly positive morning, the Dow Jones industrial futures fell 18 points to 12,720. The broader S&P futures slipped 0.50 points to 1,382. Nasdaq futures added 1.5 points to 2,587.
Hewlett-Packard said Tuesday that a British company it bought for $10 billion last year lied about its finances and accusing Autonomy Corporation PLC, of "serious accounting improprieties, disclosure failures and outright misrepresentations." It took an $8.8 billion charge against its earnings, mostly due to the Autonomy deal.
HP shares dropped $1.45, or 10.9 percent, to $11.85 in premarket trading. If the shares stay at that level in regular trading, they will set a 10-year low.
HP's net loss for the fiscal fourth quarter, which ended Oct. 31, amounted to $6.85 billion, or $3.49 per share. That compares with net income of $239 million, or 12 cents per share, in the same period last year.
Futures regained some of their losses from the Hewlett-Packard news on a positive housing report from the Commerce Department.
U.S. builders started construction last month on the most single-family homes and apartments since July 2008, suggesting that a recovery in the housing sector is taking hold.
Housing starts jumped 3.6 percent in October from September to a seasonally adjusted annual rate of 894,000. Single-family home construction dipped 0.2 percent.