Snapping five days of huge losses, the Sensex at the Bombay Stock Exchange climbed 185 points, or 1 per cent, to 19,409 in opening trade, this morning, on fresh buying by funds and retail investors, at existing lower levels. After paring some of its early gains, the Sensex stood 130 points, or 0.7 percent in the green, at 19,354 in afternoon deals, a short while ago. Today's bounce back comes after the Sensex had plunged 1,335 points in the last five trading sessions.Other regional markets in Japan, China, Singapore, Hong Kong, and South Korea were trading mixed.