Technology issues made up some more of the ground they have been losing in recent weeks.
Technology issues were also among the leaders in the Dow.
Technology issues recovered some ground lost earlier in the week.
Technology issues were particularly hard hit, despite some strong earnings reports.
This analysis has implications for other health and technology issues.
Most technology issues lost ground yesterday, but Apple's were less than half their 52-week high of $65.25.
"This was demonstrated yesterday by the performance of the technology issues."
And even those with such policies rarely address technology issues.
In the stock market, technology issues accounted for much of the pain.
Technology issues felt the sting of profit taking for one more day.