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Compare · CMP vs MLM

CMP vs MLM

Side-by-side comparison of Compass Minerals Intl Inc (CMP) and Martin Marietta Materials Inc. (MLM): market cap, price performance, sector, and recent activity on the wire.

Summary

  • Both CMP and MLM operate in Mining & Quarrying of Nonmetallic Minerals (No Fuels) (Industrials), so they compete in similar markets.
  • MLM is the larger of the two at $34.70B, about 27.9x CMP ($1.24B).
  • Over the past year, CMP is up 47.1% and MLM is up 0.7% - CMP leads by 46.4 points.
  • MLM has been more active in the news (16 items in the past 4 weeks vs 2 for CMP).
  • MLM has more recent analyst coverage (25 ratings vs 17 for CMP).
PerformanceCMP+47.11%MLM+0.67%
2025-06-09+0.00%2026-06-08
MetricCMPMLM
Company
Compass Minerals Intl Inc
Martin Marietta Materials Inc.
Price
$29.82+0.40%
$558.83-2.98%
Market cap
$1.24B
$34.70B
1M return
+5.63%
-6.98%
1Y return
+47.11%
+0.67%
Industry
Mining & Quarrying of Nonmetallic Minerals (No Fuels)
Mining & Quarrying of Nonmetallic Minerals (No Fuels)
Exchange
NYSE
NYSE
IPO
2003
1994
News (4w)
2
16
Recent ratings
17
25
CMP

Compass Minerals Intl Inc

Compass Minerals International, Inc., produces and sells essential minerals primarily in the United States, Canada, Brazil, the United Kingdom, and internationally. It operates through three segments: Salt, Plant Nutrition North America, and Plant Nutrition South America. The Salt segment offers sodium chloride and magnesium chloride, including rock salt, mechanically and solar evaporated salt, and brine and flake magnesium chloride products; and purchases potassium chloride and calcium chloride to sell as finished products or to blend with salt to produce specialty products. This segment provides products for use as a deicer for roadways, consumer, and professional use; as an ingredient in chemical production; for water treatment, human, and animal nutrition; and for various other consumer and industrial uses, as well as records management services. The Plant Nutrition North America segment offers sulfate of potash specialty fertilizers in various grades, including agricultural products that are used in broadcast spreaders, direct application, and liquid fertilizer solutions; turf products used by the turf and ornamental markets, as well as for blends used on golf course greens; organic products under the Protassium+ brand; and micronutrient products under the Wolf Trax and other brands. This segment provides its products to distributors and retailers of crop inputs, as well as growers. The Plant Nutrition South America segment offers various specialty plant nutrients and supplements; water and wastewater treatment chemicals for cleaning, decontaminating, and purifying water; and process chemicals for industrial use. The company was formerly known as Salt Holdings Corporation and changed its name to Compass Minerals International, Inc. in December 2003. Compass Minerals International, Inc. was founded in 1993 and is headquartered in Overland Park, Kansas.

MLM

Martin Marietta Materials Inc.

Martin Marietta Materials, Inc., a natural resource-based building materials company, supplies aggregates and heavy-side building materials to the construction industry in the United States and internationally. It offers crushed stone, sand, and gravel products; ready mixed concrete and asphalt; paving products and services; and Portland and specialty cement used in the infrastructure projects, and nonresidential and residential construction markets, as well as in the railroad, agricultural, utility, and environmental industries. The company also manufactures and markets magnesia-based chemical products for the industrial, agricultural, and environmental applications; and dolomitic lime primarily for customers in the steel and mining industries. Its chemical products are used in flame retardants, wastewater treatment, pulp and paper production, and other environmental applications. The company was founded in 1939 and is headquartered in Raleigh, North Carolina.

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