Google shares rise ~$30 since Amazon released its new Kindles
sg.finance.yahoo.com
sg.finance.yahoo.com
1) Pretty much everything is up significantly across the last 2 days on ECB news [1].
2) Anecdotally, traders love to speculate on pretty tenuous associations. "Oh, there's a story about X in the news? Who else makes X? I better buy some."
3) GOOG closed at a new high yesterday. There are surely plenty of traders seeing that as confirmation of a breakout and piling in today.
Amazon's announcement is part of the move, but I'd wager it's a small one.
1: http://online.wsj.com/article/SB1000087239639044427370457763...