American Tower Corp (AMT) — Defensive Interval Ratio
American Tower Corp (AMT) has a Defensive Interval Ratio of 34 days as of March 2026. Defensive assets of $650.30 Million (cash $-, short-term investments $-, receivables $650.30 Million) cover 34 days of daily cash needs of $18.94 Million/day. Check tangible equity quality of American Tower Corp to evaluate the tangible quality of the company's equity base.
Defensive Interval Ratio
Defensive Assets
Daily Cash Need
Current Liabilities
American Tower Corp Defensive Interval Ratio (1997–2025)
This chart shows how American Tower Corp's Defensive Interval Ratio has evolved across 29 annual periods from 1997 to 2025. As of March 2026, the ratio stands at 34 days, meaning defensive assets of $650.30 Million can fund 34 days of operations without new revenue. Also explore AMT net asset momentum to track the company's year-over-year net asset growth rate.
Annual Defensive Interval Ratio for American Tower Corp (1997–2025)
The table below presents the year-by-year Defensive Interval Ratio for American Tower Corp from 1997 to 2025, covering 29 annual filings. Each row shows defensive assets, daily cash need, the DIR in days, and the change in days compared to the prior year. For live market cap and the full company financial profile, see market cap of American Tower Corp.
| Year | DIR (days) | Defensive Assets (USD) | Daily Cash Need | Cash | ST Investments | Change (days) |
|---|---|---|---|---|---|---|
| 2025 | 195 days | $2.13 Billion | $10.88 Million/day | $1.47 Billion | $- | ▲ +52 days |
| 2024 | 144 days | $2.78 Billion | $19.39 Million/day | $2.00 Billion | $- | ▲ +3 days |
| 2023 | 140 days | $2.79 Billion | $19.86 Million/day | $1.97 Billion | $- | ▲ +2 days |
| 2022 | 139 days | $3.15 Billion | $22.77 Million/day | $2.03 Billion | $- | ▲ +16 days |
| 2021 | 122 days | $3.03 Billion | $24.84 Million/day | $1.95 Billion | $- | ▼ -128 days |
| 2020 | 250 days | $2.50 Billion | $10.02 Million/day | $1.75 Billion | $- | ▲ +105 days |
| 2019 | 145 days | $2.18 Billion | $15.03 Million/day | $1.50 Billion | $- | ▼ -2 days |
| 2018 | 146 days | $1.88 Billion | $12.85 Million/day | $1.21 Billion | $0.00 | ▼ -61 days |
| 2017 | 207 days | $1.42 Billion | $6.88 Million/day | $802.10 Million | $1.00 Million | ▼ -52 days |
| 2016 | 259 days | $1.16 Billion | $4.47 Million/day | $787.16 Million | $4.03 Million | ▲ +136 days |
| 2015 | 123 days | $403.72 Million | $3.29 Million/day | $- | $142.19 Million | ▲ +75 days |
| 2014 | 48 days | $253.96 Million | $5.29 Million/day | $- | $6.30 Million | ▼ -59 days |
| 2013 | 107 days | $272.20 Million | $2.53 Million/day | $- | $18.61 Million | ▼ -11 days |
| 2012 | 118 days | $204.61 Million | $1.73 Million/day | $- | $6.02 Million | ▲ +23 days |
| 2011 | 96 days | $204.16 Million | $2.14 Million/day | $- | $22.27 Million | ▲ +10 days |
| 2010 | 86 days | $127.39 Million | $1.49 Million/day | $- | $46.43 Million | ▲ +13 days |
| 2009 | 73 days | $77.72 Million | $1.07 Million/day | $- | $9.78 Million | ▲ +8 days |
| 2008 | 64 days | $53.34 Million | $829.16K/day | $- | $2.03 Million | ▲ +10 days |
| 2007 | 55 days | $47.54 Million | $869.53K/day | $- | $7.22 Million | ▲ +21 days |
| 2006 | 34 days | $52.35 Million | $1.56 Million/day | $- | $22.99 Million | ▲ +4 days |
| 2005 | 30 days | $36.99 Million | $1.24 Million/day | $- | $- | ▼ -13 days |
| 2004 | 42 days | $38.63 Million | $910.15K/day | $- | $- | ▼ -240 days |
| 2003 | 282 days | $227.77 Million | $807.61K/day | $- | $170.04 Million | ▲ +235 days |
| 2002 | 47 days | $86.84 Million | $1.84 Million/day | $- | $- | ▼ -297 days |
| 2001 | 344 days | $323.14 Million | $938.94K/day | $- | $94.07 Million | ▼ -4 days |
| 2000 | 348 days | $283.70 Million | $815.85K/day | $- | $46.04 Million | ▲ +138 days |
| 1999 | 210 days | $71.84 Million | $342.43K/day | $- | $- | ▲ +157 days |
| 1998 | 53 days | $16.85 Million | $316.81K/day | $- | $- | ▼ -54 days |
| 1997 | 107 days | $3.24 Million | $30.15K/day | $- | $- | — |