In the weekly bar chart of NOW, below, we can see both the tremendous rally over the past three years but some divergences that need to be considered. Prices, even with the recent pullback, are above the rising 40-week moving average line.
Trading volume looks like it has diminished in recent months, which suggests diminished enthusiasm. The weekly OBV line shows improvement in March to May but then it weakens diverging from the price action and signaling more aggressive selling.
The MACD oscillator crossed to a take profits sell signal in July.