Several of these top stocks are set to outperform amid a continued or accelerating economic recovery both at home and abroad. Others are more defensively positioned – built to grow should we enjoy smoother waters in 2022, but also able to withstand additional COVID-related disruptions.

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What does "enjoy smoother waters" mean in the second sentence?

there will be no unexpected fluctuations in the market conditions.

2021 Saw many troubled times, with stocks dropping and rising in large amounts.
Consider calm seas versus crashing waves and storms.

Is it similar to "a continued or accelerating economic recovery"?

not quite. "economic recovery" means that things are getting ever better, as opposed to just being calm and steady, and allowing investors to predict with confidence what is likely to happen.

The phrase "enjoy smoother waters" is an idiomatic expression used in this context to indicate a period of time or circumstances characterized by fewer challenges, difficulties, or disruptions. It implies a sense of calmness, stability, and ease, similar to sailing on calm and smooth waters. In the context of the sentence you provided, it means that if the economy experiences less turbulence or obstacles in 2022, the stocks mentioned will still be able to grow and perform well.