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 $81.87B, about 45.5x SMA ($1.80B).
- Over the past year, AMT is down 12.6% and SMA is down 9.3% - SMA leads by 3.3 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 15 for SMA).
PerformanceAMT-12.62%SMA-9.32%
2025-09-02+0.00%2026-09-01
- Company
- American Tower Corporation (REIT)
- SmartStop Self Storage REIT Inc.
- Price
- $175.12-0.45%
- $32.75+0.80%
- Market cap
- $81.87B
- $1.80B
- 1M return
- +1.18%
- -2.69%
- 1Y return
- -12.62%
- -9.32%
- Industry
- Real Estate Investment Trusts
- Real Estate Investment Trusts
- Exchange
- NYSE
- NYSE
- IPO
- 2025
- News (4w)
- 3
- 8
- Recent ratings
- 25
- 15
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
- CoreSite Announces Access to Oracle Cloud San Jose Region Through OCI FastConnect
- Director Kalathur Rajesh bought $500,733 worth of shares (2,829 units at $177.00), increasing direct ownership by 57% to 7,765 units (SEC Form 4)
- American Tower upgraded by Barclays with a new price target
- American Tower to Present at the TD Cowen 12th Annual Communications Infrastructure Summit
- SVP & Advisor to the CFO Meyer Robert Joseph sold $894,450 worth of shares (5,000 units at $178.89), decreasing direct ownership by 19% to 21,428 units (SEC Form 4)
- EVP, Chief Admin Ofr, GC & Sec Dowling Ruth T sold $309,641 worth of shares (1,791 units at $172.89) as part of a pre-agreed trading plan, decreasing direct ownership by 6% to 27,711 units (SEC Form 4)
- SEC Form 10-Q filed by American Tower Corporation (REIT)
- American Tower Corporation (REIT) filed SEC Form 8-K: Results of Operations and Financial Condition, Financial Statements and Exhibits
- American Tower Corporation Reports Second Quarter 2026 Financial Results
- Harbor Link Deploys Underground Fiber into CoreSite DC2 Data Center, Expanding Carrier Diversity in Washington, D.C. and Northern Virginia
Latest SMA
- SmartStop Self Storage REIT downgraded by BMO Capital Markets with a new price target
- Strategic Storage Trust VI, Inc. Reports Second Quarter 2026 Results
- Director Mueller David J sold $14,323 worth of shares (425 units at $33.70) as part of a pre-agreed trading plan, decreasing direct ownership by 8% to 4,640 units (SEC Form 4)
- General Counsel and Secretary Look Nicholas sold $35,219 worth of shares (1,025 units at $34.36), decreasing direct ownership by 64% to 588 units (SEC Form 4)
- SmartStop Self Storage REIT Inc. filed SEC Form 8-K: Regulation FD Disclosure, Financial Statements and Exhibits
- SmartStop Closes Canadian Maple Bond Offering for CAD $200 Million
- Amendment: SEC Form SCHEDULE 13G/A filed by SmartStop Self Storage REIT Inc.
- SmartStop Self Storage REIT Inc. filed SEC Form 8-K: Regulation FD Disclosure, Financial Statements and Exhibits
- SEC Form 10-Q filed by SmartStop Self Storage REIT Inc.
- SmartStop Self Storage REIT, Inc. Reports Second Quarter 2026 Results