CMT Level I common mistakes
CMT Level I · Understand the traps and how to avoid them.
Treating the Dow Theory as a signal system and buying the moment a single index breaks a prior high, without waiting for the second index to confirm.
Dow Theory's confirmation principle is stated in the reading material but candidates memorise the three phases and three trend types and skip the confirmation requirement, so they answer 'buy' whenever one average makes a new high.
What to do instead
Rehearse the full checklist in order: primary trend defined by successive higher highs and higher lows in both averages, confirmation required from the companion average, volume expanding on the breakout, and a trend reversal only after a failure swing. Practise on a chart of two correlated indices and write out which condition is missing before answering.
Applying a moving average crossover as a standalone entry rule and ignoring that the same crossover produces repeated whipsaws in a range-bound market.
Candidates learn the mechanical rule (price above the average is bullish) and forget the trend-regime condition that makes the rule valid, so they pick the crossover answer for a chart that is clearly sideways.
What to do instead
Before answering any moving-average question, classify the market state first: trending or ranging. In a range, expect false crossovers and prefer oscillator or range-breakout logic. Know the trade-off between shorter averages (more signals, more noise) and longer averages (fewer signals, more lag), and be able to state which average length a question's data implies.
Reading an oscillator as a reversal trigger: selling simply because the relative strength index is above 70, or buying because it is below 30.
The overbought and oversold labels sound like instructions, and candidates do not connect them to the underlying idea that momentum extremes can persist for a long time in a strong trend.
What to do instead
State the correct interpretation explicitly: an extreme reading flags that momentum is stretched, not that price must turn. In an uptrend, overbought readings often mark continuation, and the actionable signal is a bearish divergence or a failure to make a new price high alongside a lower oscillator high. Practise classifying every oscillator question as trend context first, signal second.
Drawing a trendline through the extremes of the bars rather than through the closing prices, or forcing a line through two points that do not define a valid boundary.
Candidates treat trendline drawing as arbitrary art and use whichever two points look convenient, so they misjudge whether a break has actually occurred and answer the follow-up question incorrectly.
What to do instead
Use a consistent convention: connect successive reaction lows in an uptrend and successive reaction highs in a downtrend, requiring at least three touches before calling the line valid. A break is judged on a close beyond the line, not an intrabar penetration. When a question describes touches, count them and check whether the third touch held.
Confusing classic chart patterns with their bullish and bearish variants, for example calling a head-and-shoulders continuation pattern or reading an ascending triangle as bearish.
Pattern names are memorised as a list without the geometry that defines them, and the measuring implication (target projection) is learned separately from the shape, so the two get mismatched under time pressure.
What to do instead
For each pattern, write a one-line definition covering shape, volume behaviour, confirmation point, and measured target. Head and shoulders is a reversal with a neckline break and a target equal to the head-to-neckline distance projected from the break. An ascending triangle has a flat resistance and rising support and resolves upward more often. Test yourself by describing the pattern from a verbal description only.
Treating volume as confirmation only in the direction of the price move, so a price rise on falling volume is still read as bullish.
Candidates remember 'volume confirms the trend' as a slogan and never learn the divergence case, where price advances on shrinking volume and the move is suspect.
What to do instead
Learn volume behaviour per pattern and per phase: expansion on breakouts, contraction during consolidation, and divergence when price makes a new high but volume does not. Be able to say what a low-volume rally implies (weak conviction, vulnerable to reversal) and what a high-volume reversal bar at the end of a decline implies (possible capitulation and accumulation).
Mixing up the candlestick reversal signals and their required context, for example treating a doji as a sell signal on its own.
Candlestick patterns are visually memorable and easy to memorise by name, so candidates skip the location requirement (after an extended advance or decline) and the confirmation requirement (the next candle).
What to do instead
Attach each candle pattern to a location and a confirmation rule. A doji signals indecision and matters only after a sustained move and when the following candle confirms. A hammer requires a long lower shadow, little or no upper shadow, and a prior decline. A bearish engulfing requires an established uptrend and a body that fully covers the prior body.
Assuming technical analysis stands alone and ignoring how sentiment, positioning, and market structure interact with the chart.
Candidates compartmentalise the curriculum, treating sentiment surveys, breadth, and flow as separate topics rather than as inputs that change how a price pattern should be read.
What to do instead
Build a single reading order for any market: trend and structure first, then momentum, then volume and breadth, then sentiment and positioning as a contrarian or confirming overlay. Practise stating, for a given setup, whether sentiment data would strengthen or weaken the technical case, and be able to explain why extreme bullish sentiment plus a failed breakout is a stronger bearish case than either alone.
Confusing risk management arithmetic under time pressure: sizing a position from the stop distance but using account value rather than the amount risked per trade.
The formula is simple but candidates practise it rarely and default to a fixed fraction of the account, or forget to convert the stop distance into a per-share loss before dividing.
What to do instead
Drill the sequence: risk per trade equals account equity times the chosen risk fraction; per-unit risk equals entry minus stop; position size equals risk per trade divided by per-unit risk. Work three examples with different stop distances and check that a wider stop always produces a smaller position. Also be able to compute the reward-to-risk ratio before accepting a setup.
Answering behavioural-finance questions with the rational-actor assumption, for example predicting that investors will sell a losing position to avoid further loss.
Candidates reason from how they think they would act rather than from the documented biases, and the disposition effect, anchoring, and confirmation bias all predict the opposite of the rational response.
What to do instead
Memorise each bias with its signature behaviour: disposition effect means selling winners too early and holding losers too long; anchoring means fixating on a prior price or forecast; confirmation bias means seeking supporting evidence only; recency means overweighting the latest move. For each question, identify which bias the described behaviour matches before choosing an answer.