Some ideas, but doubt what you had in mind: Accidental or forced buying and selling by others - "My cat stepped on my 'buy 10,000 shares' hot key. Best get out." Irrational buying and selling by others - "I'm feeling lucky. Buy! Actually, I'm feeling sad. Sell!" Trades by others where speculation is based on a fundamental view - "10 shares in that tanking stock, please. Just get me in at any price before close and call me in five years." MM / big player tricks - "Let's create a mini, temporary sell-off." Broken HFT - "while(true) { buy(random); sell(random); }" These show up in price and volume. Didn't go as far as psychological--in one's head--noise or news/opinion noise.
@JTrades and @Redneck: Isn't the word "information" specific to a context? In other words, in my opinion, the word "information" can only be applicable within one's model/framework. So, at no point can "information" be ignored. However, one man's "information" is another man's "noise"! Another way of looking at "information": Data that is precisely useful for the model -- nothing more, nothing less. So, if "information" was a line, there will be "noise" on both sides (i.e., lack of information on the lower end; and, data that adds no incremental value to the model ('over information' in the colloquial language) on the higher end.) Regards, Monoid.
I remember when I use to hate Mondays, now that I trade I love Monday because its the beginning of the trading week. Happy trading everyone
No recap video tonight, just got home from a networking event for work. Today was a chop fest. I had a OK day considering the price action today.