Best- and Worst-Performing Stocks for the Month

The Morningstar US Large-Mid Index rose 3.6% in March, amid a rally in the energy sector. The index tracks the performance of the top 90% of the investable universe by market cap, and each month we screen it to find the best- and worst-performing companies.

Best-Performing Stocks of March 2024

• Williams-Sonoma WSM
• Southern Copper SCCO
• Coinbase Global COIN
• Micron Technology MU
• Vistra VST

Worst-Performing Stocks of March 2024

• Zscaler ZS
• MongoDB MDB
• Lululemon Athletica LULU
• Zoetis ZTS
• Southwest Airlines LUV

Metrics for the Best-Performing Stocks

Williams-Sonoma WSM

• Sector: Consumer Cyclical
• Industry: Specialty Retail
• Economic Moat: None

Williams-Sonoma surged 34.8% in March, leaving it up 164.0% for the year. The stock ended the month with a Morningstar Rating of 2 stars, trading at a 43% premium to its fair value estimate of $220.

Southern Copper SCCO

• Sector: Basic Materials
• Industry: Copper
• Economic Moat: Wide

Southern Copper jumped 31.7%, lifting shares 44.7% over the past year. The stock ended the month with a quantitative Morningstar Rating of 1 star.

Coinbase Global COIN

• Sector: Financial Services
• Industry: Financial Data & Stock Exchanges
• Economic Moat: None

Coinbase jumped 30.2%, bringing the stock up 292.4% over the past year. Shares are 11.1% below their last high on March 25, 2024. The stock ended the month with a Morningstar Rating of 1 star, trading at a 94% premium to its fair value estimate of $130.

Micron Technology MU

• Sector: Technology
• Industry: Semiconductors
• Economic Moat: None

Micron advanced 30.2%, having risen 96.3% from one year ago. The stock ended the month with a Morningstar Rating of 2 stars, trading at a 55% premium to its fair value estimate of $80.

Vistra VST

• Sector: Utilities
• Industry: Utilities - Independent Power Producers
• Economic Moat: None

Vistra advanced 28.1%, lifting shares 193.7% from one year ago. The stock ended the month with a Morningstar Rating of 1 star, trading at a 124% premium to its fair value estimate of $32.

Metrics for the Worst-Performing Stocks

Zscaler ZS

• Sector: Technology
• Industry: Software - Infrastructure
• Economic Moat: Narrow

Zscaler fell 20.4% in March, but its shares were still up 64.9% for the year. Shares are 26% below their last high on Feb. 9, 2024. The stock ended the month with a Morningstar Rating of 3 stars, trading at a 10% discount to its fair value estimate of $213.

MongoDB MDB

• Sector: Technology
• Industry: Software - Infrastructure
• Economic Moat: None

MongoDB slid 19.9%, but its shares were still up 53.8% for the year. Shares are 30.1% below their last high on Feb. 12, 2024. The stock ended the month with a Morningstar Rating of 3 stars, trading at a 4% discount to its fair value estimate of $370.

Lululemon Athletica LULU

• Sector: Consumer Cyclical
• Industry: Apparel Retail
• Economic Moat: Narrow

Lululemon slid 16.4%, but shares were still up 7.3% for the year. Shares are 25.4% below their last high on Dec. 29, 2023. The stock ended the month with a Morningstar Rating of 2 stars, trading at a 39% premium to its fair value estimate of $278.

Zoetis ZTS

• Sector: Healthcare
• Industry: Drug Manufacturers - Specialty & Generic
• Economic Moat: Wide

Zoetis slid 14.7%, but shares were still up 2.6% for the year. Shares are 17.3% below their last high on Dec. 14, 2023. The stock ended the month with a Morningstar Rating of 3 stars, trading at a 2% discount to its fair value estimate of $170.

Southwest Airlines LUV

• Sector: Industrials
• Industry: Airlines
• Economic Moat: None

Southwest Airlines fell 14.3% and was down 8.1% from one year ago. Shares are 26.2% below their last high on July 12, 2023. The stock ended the month with a Morningstar Rating of 2 stars, trading at a 54% premium to its fair value estimate of $19.

Companies that are not formally covered by a Morningstar analyst have quantitative ratings. These companies are statistically matched to analyst-rated companies, allowing our models to calculate a quantitative moat, fair value, and uncertainty rating.

As part of our mission to put more information into the hands of investors, this article was compiled from Morningstar’s data and independent research using automation technology. The original article was written by Morningstar reporters and editors. This updated version was reviewed by an editor.