Telecomunicaciones y tecnología
Wall Street weighed down by banks
SAP's reassuring comments limit tech losses
The Dow Jones industrial average dropped 154.92 points, or 1.81 percent, to close unofficially at 8,419.73. The Standard & Poor's 500 Index fell 19.80 points, or 2.13 percent, to 909.43. The Nasdaq Composite Index shed 7.76 points, or 0.45 percent, to 1,731.24.
(Reporting by Rodrigo Campos)