Compare · AMT vs SMA
AMT vs SMA
Side-by-side comparison of American Tower Corporation (REIT) (AMT) and SmartStop Self Storage REIT Inc. (SMA): market cap, price performance, sector, and recent activity on the wire.
Summary
- Both AMT and SMA operate in Real Estate Investment Trusts (Real Estate), so they compete in similar markets.
- AMT is the larger of the two at $84.51B, about 45.0x SMA ($1.88B).
- Over the past year, AMT is down 3.2% and SMA is down 6.9% - AMT leads by 3.7 points.
- SMA has been more active in the news (8 items in the past 4 weeks vs 3 for AMT).
- AMT has more recent analyst coverage (25 ratings vs 16 for SMA).
PerformanceAMT-3.17%SMA-6.92%
2025-10-17+0.00%2026-10-16
- Company
- American Tower Corporation (REIT)
- SmartStop Self Storage REIT Inc.
- Price
- $185.21+2.14%
- $34.16+0.62%
- Market cap
- $84.51B
- $1.88B
- 1M return
- +5.49%
- +4.46%
- 1Y return
- -3.17%
- -6.92%
- Industry
- Real Estate Investment Trusts
- Real Estate Investment Trusts
- Exchange
- NYSE
- NYSE
- IPO
- 2025
- News (4w)
- 3
- 8
- Recent ratings
- 25
- 16
AMT
American Tower Corporation (REIT)
American Tower, one of the largest global REITs, is a leading independent owner, operator and developer of multitenant communications real estate with a portfolio of approximately 181,000 communications sites.
Latest AMT
- SEC Form 4 filed by American Tower Corporation (REIT)
- American Tower Plans Third Quarter 2026 Earnings Release and Conference Call
- SEC Form 3 filed by new insider Ludgate Kristen M
- American Tower Corporation (REIT) filed SEC Form 8-K: Leadership Update, Other Events, Financial Statements and Exhibits
- American Tower Corporation Announces Election of Kristen M. Ludgate to Board of Directors and Declares Quarterly Distribution
- American Tower Corporation (REIT) filed SEC Form 8-K: Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation
- American Tower Corporation (REIT) filed SEC Form 8-K: Other Events, Financial Statements and Exhibits
- American Tower Corporation Prices Senior Notes Offering
- SEC Form FWP filed by American Tower Corporation (REIT)
- SEC Form 424B5 filed by American Tower Corporation (REIT)
Latest SMA
- SmartStop Self Storage REIT Announces the Date of Its Third Quarter 2026 Earnings Release, Conference Call and Webcast
- SmartStop Self Storage REIT downgraded by Truist with a new price target
- SmartStop Self Storage Continues Support for the Breast Cancer Research Foundation for Ninth Consecutive Year
- SmartStop Self Storage REIT Inc. filed SEC Form 8-K: Other Events
- ICM Bluebird Canadian Self Storage LP Announces Agreement for Strategic Joint Venture with SmartStop Self Storage REIT, Inc.
- SmartStop Expands North American Platform Through ~$140 Million of Strategic Investments Amongst Other Initiatives, Driving Accretive Growth on a Leverage-Neutral Basis; Raises 2026 Same-Store and FFO, as Adjusted Guidance
- SmartStop Self Storage REIT Inc. filed SEC Form 8-K: Regulation FD Disclosure, Financial Statements and Exhibits
- SmartStop Self Storage REIT, Inc. Chairman and CEO H. Michael Schwartz to Speak at the 12th Annual Evercore ISI Storage Symposium
- Director Mueller David J sold $13,621 worth of shares (425 units at $32.05) as part of a pre-agreed trading plan, decreasing direct ownership by 9% to 4,215 units (SEC Form 4)
- SmartStop Self Storage REIT Inc. filed SEC Form 8-K: Regulation FD Disclosure