Frankly, I had not heard of the company before this but I am always interested in the charts and indicators. Let's check them out together.
In this daily bar chart of CLH, below, we can see a low in early May and a rally into a September high. Prices have corrected to retest support around $62. While CLH is below the declining 50-day moving average line it is still above the rising 200-day moving average line.
The daily On-Balance-Volume (OBV) line shows a rise the past 12 months to October and then a slight decline into November.
The Moving Average Convergence Divergence (MACD) oscillator has turned up to a cover shorts buy signal in early November and is now searching for its next direction.
In this weekly bar chart of CLH, below, we can see the movement over the past three years: Prices above the rising 40-week moving average line and consolidating the gains of 2018.
The weekly OBV line shows a positive trend the past three years and supports the price gains.
The weekly MACD oscillator has crossed to the downside for a take profits sell signal. This signal could soon reverse to a new buy signal as the two moving averages that make up this indicator are narrowing and could cross to the upside in the next few weeks.
In this Point and Figure chart of CLH, below, we can see that prices have reached a price target of $72, but then it has traded sideways in a sideways triangle-like pattern. Prices could break out to the upside or the downside. Strength above $68 should be bullish while a decline to $61 might start a move lower.
Bottom line strategy: The longer-term trend is up so I would look for that trend to eventually continue. Go long above $68 and then risk below $62.