Created by market technician John Bollinger in the 1980s, Bollinger Bands (BBs) are a favored indicator for many traders worldwide. According to Bollinger, BBs are intended to answer one simple question: Are prices high or low on a relative basis?
To address this inquiry, Bollinger Bands view volatility as being dynamic. Thus, they’re designed to be an “envelope” of evolving price action. Each set of BBs consists of an upper band, lower band, and midpoint―the parameters by which price is contextualized.
So how is a Bollinger Bands strategy traded in the live market? It’s used in three distinct market states: trend, breakout, and rotation. Let’s take a look at one BB strategy for each of these situations.
A trend is a periodic, directional movement in price action. Trends occur on all time frames, including intraday, day, week, month, and yearly horizons. Bollinger Bands help traders spot trending markets in two ways:
If you’re using a Bollinger Bands strategy to trade trends, then it is important to observe the distance between bands and where pricing bars are closing. To illustrate, let’s say that springtime Midwest flooding has triggered a daily uptrend in CME December corn futures. To get in on the bullish trend, a trader could use BBs as follows:
One of the best things about BBs is that they can help traders with market entry. As it pertains to spotting breakouts, or unexpected moves in price, they’re especially useful in getting in on a sudden directional move ahead of time.
In contrast to the wide-open appearance of trending markets, BBs signal a pending breakout by exhibiting a reduced bandwidth. Essentially, when the upper and lower bands are “tight,” a market is becoming compressed. When price breaks outside the BBs, a substantial directional move is possible.
Any trades are educational examples only. They do not include commissions and fees.
Assume that June WTI crude oil futures are trading in an extremely tight fashion ahead of the weekly EIA inventories report. In reference to the 30-minute chart, WTI’s price has an upper BB of $50.00 and a lower BB of $49.25. You could trade a breakout by using the following Bollinger Bands strategy:
A rotational market is one that has no direction and is “range bound.” BBs are ideal tools for identifying range-bound products. Reduced or “tight” width between the upper and lower bands signals market consolidation.
Trading rotational markets with BBs is essentially viewing the outer bands as support or resistance levels. In practice, a trader simply takes a position opposite of price action from these levels in anticipation of reversion to the BB midpoint. Assuming our WTI scenario from above (upper band at $50.00 and lower band at $49.25), this may be accomplished via the following Bollinger Bands strategy:
Any trades are educational examples only. They do not include commissions and fees.
One of the benefits of Bollinger Bands is that traders can apply them to any product, time frame, or strategy. However, before jumping into the market with BBs, building a rock-solid technical knowledge base is a must.