Twitter (TWTR) is up 27 percent since Friday, February 5. That makes it the best-performing member of the S&P 500 for the period. It’s also the biggest weekly gain for Jack Dorsey’s social-media company since February 2015.
The S&P 500 plunged 3.3 percent between Friday, January 22, and Friday, January 29. It was the biggest weekly decline since October, with 85 percent of the index’s members losing value. The selloff also dragged stocks into negative territory on a year-to-date basis.
The S&P 500 slid 1.5 percent between Friday, January 8, and Friday, January 15. It was the index’s sharpest decline since the week ended October 30. The Nasdaq-100 slid 2.3 percent, while the Russell 2000 rallied 1.5 percent. That divergence between big and small has been typical lately as money shifts to value stocks and newer companies.
The S&P 500 rose 1.8 percent between Thursday, December 31, and Friday, January 8. It was the biggest weekly gain since late November. planting the index above 3,800 for the first time ever. The Nasdaq-100, Russell 2000 and Dow Jones Industrial Average also hit new records.
ADP’s private-sector payrolls report on Wednesday and the Labor Department’s non-farms payrolls report on Friday both missed estimates. They were also negative — showing actual job losses — for the first time in at least six months.
The S&P 500 rose 1.7 percent between Friday, November 27, and Friday, December 4. It was the index’s fourth gain in the last five weeks. Other key benchmarks including the Dow Jones Industrial Average, Nasdaq-100, Russell 2000 and Dow Jones Transportation Average also closed at record highs.