The market is recovering from a two-day slump but is still on track for its worst week so far this year.
Hewlett-Packard drove the Dow Jones industrial average higher a day posting earnings that beat the forecasts of analysts and the company itself.
AIG helped boost the Standard & Poor's 500 index after its fourth-quarter operating results exceeded forecasts.
The Dow was up 64 points at 13,944 at noon Friday.
The Standard & Poor's 500 index rose six to 1,508. The Nasdaq composite index rose 14 to 3,145.
All three indexes remain down for the week. The S&P 500 is on track for its first weekly loss of the year.