Regarding the above chart and the others like it, Wyckoff stresses that, in addition to trend and whatever channels may be formed by apparent consistency in the intrusion of demand and supply, one must also look to previous areas of support and resistance, which is what we're doing now. Yesterday there was an upthrust in the Nasdaq and the Dow. There was also an upthrust of sorts in the SPX, but there've been so many over the past few weeks that they are forming their own base

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Whatever these thrusts mean in and of themselves does not matter as much as where they are occurring, i.e., against important, previous support. Therefore, both intraday and EOD traders would do well to concentrate on how price behaves at this particular juncture.