FORTUNE -- Hey, Apple's (AAPL) down, let's pile on!
That seems to be the attitude -- if a computer can have an attitude -- of the program that filters headlines on Google's (GOOG) financial news feed.
The list at right (expanded below) was generated by doing a Google Finance search for "Apple" at 8 a.m. Monday morning. You have to scroll down 24 headlines to get to a positive one ("Apple Inc. sales of $54 billion and profit of $13 billion both break records") which turns out to be Apple's own press release.
Given that many high-frequency trading algorithms are programmed to react to such headlines -- generated by the likes of Insider Monkey and ValueWalk, but not, curiously, Fortune.com -- these things matter.
Expanded list below.
A snapshot of high-frequency trading algorithms in action on Friday
FORTUNE -- What happened to Apple (AAPL) in the last minute of trading Friday?
Tyler Durden, who tweets as @zerohedge, offers the Nanex chart above as evidence that it was a premeditated flash dump executed by one or more high-frequency trading algorithms. How else could 800,000 shares worth nearly $300 million be sold in 17-second intervals?
If retail investors are moving back into mutual MORE
Philip Elmer-DeWitt - Jan 27, 2013 11:24 AM ET