Change to QQQ short term up-trend on Wednesday? Market can rally on low volume!

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Another up or flat day on Wednesday will change my QQQ short term trend count to an up-trend.   Tuesday was the 20th day of the current short term down-trend.   The longer term trend remains down.   September is typically the worst month of the year for the market, so I would not be surprised to see a decline start soon. By the way, I am not concerned that the market is rising on sluggish volume.   The multi-month rally that began last September also came on below average trading volume. Check out this monthly chart of the QQQ (click on chart to enlarge).