Today’s chart is the Nasdaq 100 index, and the focus is on bearish divergences. A bearish divergence is when you have higher highs in price and lower peaks in momentum, in this case in the form of RSI.

The essence of market breadth is to see how the stocks that comprise a benchmark are performing relative to the benchmark itself.

I've often said that by looking at individual stocks, you can get a deeper level of understanding of what's moving the overall equity markets.

I love to use the Consumer Discretionary vs Consumer Staples ratio as a way of gauging offense vs defense in the equity markets. The top panel shows the ratio of the XLY (Consumer Discretionary Sector SPDR) versus the XLP (Consumer Staples).

Market breadth at a high level essentially means market participation, so when the market is on the move, it tells you how many stocks are participating in the trend.

I love to ask interviewees if they had one chart to get a good read on the overall market environment, what would it be and why? My One Chart for today is IWM, the small cap ETF.

It’s often been said that we stand on the shoulders of giants. Unfortunately, this week we lost one of the early practitioners and founders of the Market Technicians Association, Tony Tabell.

The chart of Health Care (XLV) is interesting first and foremost because it is a sector that has been remarkably resilient.

Crude oil went below zero dollars yesterday and eventually reached -$40 a barrel. I wanted to focus not necessarily on what this means for investors, but on what it means psychologically when something goes beyond a barrier you think is unbreachable.

But the current market environment, with all its volatility and unexpected moves, reflects riding a bike around Washington. There are times you have to work really hard, and times when you can ease off a bit. There are big uphill and downhill moves, and it’s almost like riding around with your eyes closed in a lot of ways.