NEW YORK (AP) — Stocks ended another wobbly day mostly lower on Wall Street Monday, extending a losing streak for markets.

The S&P 500 couldn't hold on to an afternoon gain and ended down 0.4%. The benchmark index is coming off a six-week losing streak.

Tech companies were among the biggest losers, pulling the Nasdaq down 1.2%. The Dow Jones Industrial Average ended barely in the green.

Spirit Airlines jumped after JetBlue said it would make a hostile offer for the budget carrier.

ManTech surged after investment firm Carlyle Group said it will buy the defense contractor. Bond yields fell.