Momentum stocks tumble ahead of earnings season

|By:, SA News Editor

Echoes of April: Following a big May/June rally that propelled the Nasdaq to new post-Dot.com bubble highs, momentum stocks are nosediving nearly across the board today.

The selloff comes ahead of Alcoa's afternoon Q2 report, the unofficial start of earnings season. Some of the cash going out of equities is flowing into Treasurys.

Notable 6%+ decliners: TWTR -7.6%. DDD -6.5%. SSYS -7.9%. P -7.7%. LNKD -7.1%. DATA -10.1%. SPLK -9.3%. WDAY -7.7%. YELP -8.3%. GOGO -6.5%. YOKU -6.6%. ZU -10.5%. NOW -6.8%.