U.S. stocks steadied after dipping into negative territory on Monday as investors remained cautious in light of last week’s selloff on Wall Street and geopolitical concerns. Earlier, investors took comfort from news that Portuguese central banks unveiled a plan to rescue troubled Banco Espírito Santo, but gains have been muted.

The S&P 500 (SPX) was flat at 1,925.60. The Dow Jones Industrial Average (DJI) fell 16 points, or 0.1%, to 16,476.00. The Nasdaq Composite (RIXF) rose 6 points, or 0.1% to 4,358.24.

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The data calendar is empty for Monday and few earnings reports are being reported.

Portugal’s central bank late Sunday announced a rescue plan of Banco Espírito Santo, in which the bank would be split into “good” and “bad” banks with the “good” bank receiving EUR4.9 billion in state funds. The upheaval surrounding the bank has some investors worried about renewed turmoil for Europe’s banking system. That news drove a rally in Portugal stocks and also inspired some gains in Europe .

With no U.S. data on the docket, investors focused on last week’s performance, which included the biggest weekly drop in two years for the S&P 500 (SPX). Nonfarm-payroll data missed forecasts, but the gains provided more evidence that the economy continues to gain momentum, which in turn makes it more likely the Federal Reserve could raise interest rates sooner than expected.