NEW YORK—Wall Street wheezed to more losses Friday as it limped to the finish of its worst week in six months.
The S&P 500 slipped 9.94 points, or 0.2 percent, to 4,320.06 after a late-day swoon erased a modest gain it had held for most of the day. It capped an ugly slide caused by Wall Street’s growing understanding that interest rates likely won’t come down much anytime soon.