Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

How to reconcile these contradictory statements about the effect of volume on stock price?
The first statement is talking about a sudden sharp increase in volume (double or more of average volume) with a sudden increase in price. In other words, there has been a last rush to buy the stock exhausting all the current bulls (buyers), so the bears (sellers) take over, at least temporarily. Whilst the second statement is talking about a gradual increase in volume as the price up trends (thus the use of a volume oscillator). In other words (in an uptrend), the bulls (buyers) are gradually increasing in numbers sending the price higher, and new buyers keep entering the market. (The opposite is the case for a down-trend).