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Fluctuations - Markets often fluctuate by +/- 2% on a day-to-day basis. Graphs of market trends are up-dated on-line and in real-time on various web sites. http://money.ca.msn.com/
An example of this is the DJI average which increased by 1.65% today (2010-08-28).
However, it's important to put these fluctuations in perspective. When these daily fluctuations are compared with those that occurred in the last year, they are marginal (noise) at best.
Predictions - The Hindenburg Omen (US market prediction) just may be right, another analyst indicates that the situation is ratty at best for the US economy.