S&P 500 Snapshot: Late Week Rally Pushes Index Into Green

The S&P 500 erased early-week losses with a late rally, closing Friday up 0.6% for the week. The weekly gain masked a split. S&P 500's weekly gain masks a split: Staples and materials lead, energy lags shows consumer staples and materials led the advance. Energy stocks fell.

The index stumbled at the open Monday and carried losses into Tuesday. Buying picked up Wednesday and accelerated into Friday's close. The late-week push erased the week's earlier deficit.

The S&P 500 ended the week in positive territory.