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What Is Underweight?


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    Highlights

  • Underweight can refer to a portfolio with less exposure to a security than its benchmark or an analyst's view that a security will underperform peers
Table of Contents

What Is Underweight?

Let me explain underweight to you directly—it's one of two situations in trading and finance. If your portfolio holds a smaller percentage of a particular security compared to the benchmark portfolio, that's underweight. It can also mean an analyst like me believes the security will underperform its peers in the future.

Key Takeaways

You need to grasp that underweight covers two financial contexts: first, a portfolio with less of a security than the benchmark, and second, an analyst's opinion on a security's likely underperformance. Calculating an underweight portfolio is straightforward math using percentages, but labeling a stock underweight depends on the analyst's chosen metrics. Remember, an underweight portfolio isn't always negative—it might just reflect a manager's lack of optimism about the asset.

Understanding Underweight

While you can spot an underweight portfolio through simple percentage calculations to see how much is allocated to an asset, identifying an underweight stock is more flexible. It relies on the variables I or any analyst selects for the evaluation.

Underweight Portfolios

An underweight portfolio happens when the weight of a security in your managed portfolio is lower than in the benchmark. For instance, if the benchmark has 20% in a security and yours has only 10%, you're underweight there. As a portfolio manager, I might make a security underweight if I think it'll underperform others in the portfolio. Say a benchmark security is at 10%—if I expect poor performance over time, I'd drop it to 8% and shift that 2% to securities with better prospects to boost overall returns.

Underweight Stocks

When analysts call a security underweight, it means the expected return is below the average for its industry, sector, or chosen market comparison. This is like predicting poor performance, based on variables the analyst picks. There's no fixed timeframe or benchmark, so opinions vary—you might see a stock as underweight against one index but not another, leading to different recommendations.

Example of Underweight

Consider Fund ABC tracking Index DEF, where Apple stock is 10% of the index. If Fund ABC's research shows a weak outlook for Apple based on company analysis and economic factors, they might hold only 1.5% in Apple shares. That makes Fund ABC underweight in Apple compared to the benchmark.

Does Underweight Mean Sell?

When a stock analyst labels something underweight, it's typically a sell signal or advice not to buy. Either way, it indicates a weak outlook for the stock.

What Does an Underweight Portfolio Mean?

An underweight portfolio is one where your fund holds fewer shares of a stock relative to the benchmark. For example, if your portfolio has 2% in a stock but the benchmark has 10%, you're underweight in that stock.

What Is an Overvalued Stock?

An overvalued stock has a price that's out of sync with its earnings outlook, like an inflated P/E ratio. Analysts expecting this believe the price will drop.

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