Goldman says the market will turn lower again and won't bottom until these 3 things happen

A trader working at the New York Stock Exchange in New York, the United States.
Michael Nagle | Xinhua News Agency | Getty Images

With the S&P 500 scoring its best three-day rally since 1933 last week, investors wondered if the massive bounce was a sign of the worst for the market is behind us. Goldman Sachs said not yet.