CLFD vs. AMT

Last updated Apr 1, 2026

Compare and contrast key facts about Clearfield, Inc. (CLFD) and American Tower Corporation (AMT).

Performance

CLFD vs. AMT - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Clearfield, Inc. (CLFD) and American Tower Corporation (AMT). The values are adjusted to include any dividend payments, if applicable.

CLFD vs. AMT - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
CLFD Clearfield, Inc.	-9.19%	-5.97%	6.60%	-69.11%	11.51%	241.50%	77.33%	40.52%	-19.02%	-40.82%
AMT American Tower Corporation	-1.70%	-0.92%	-12.16%	5.37%	-25.67%	32.89%	-0.48%	47.87%	13.32%	37.71%

Fundamentals

Market Cap CLFD : $367.13M AMT : $80.96B
EPS CLFD : -$0.49 AMT : $5.40
PS Ratio CLFD : 2.46 AMT : 7.60
PB Ratio CLFD : 1.47 AMT : 22.17
Total Revenue (TTM) CLFD : $149.00M AMT : $10.65B
Gross Profit (TTM) CLFD : $53.74M AMT : $7.84B
EBITDA (TTM) CLFD : $13.63M AMT : $6.41B

Returns By Period

In the year-to-date period, CLFD achieves a -9.19% return, which is significantly lower than AMT's -1.70% return. Over the past 10 years, CLFD has underperformed AMT with an annualized return of 5.31%, while AMT has yielded a comparatively higher 7.75% annualized return.

CLFD

• 1D: -0.68%
• 1M: -15.81%
• YTD: -9.19%
• 6M: -23.01%
• 1Y: -10.94%
• 3Y*: -17.17%
• 5Y*: -3.20%
• 10Y*: 5.31%

AMT

• 1D: 1.30%
• 1M: -10.05%
• YTD: -1.70%
• 6M: -9.39%
• 1Y: -17.91%
• 3Y*: -2.23%
• 5Y*: -3.60%
• 10Y*: 7.75%

*Multi-year figures are annualized to reflect compound growth (CAGR)

Return for Risk

CLFD vs. AMT — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

CLFD

CLFD Risk / Return Rank: 32
CLFD Sharpe Ratio Rank: 31
CLFD Sortino Ratio Rank: 30
CLFD Omega Ratio Rank: 30
CLFD Calmar Ratio Rank: 33
CLFD Martin Ratio Rank: 34

AMT

AMT Risk / Return Rank: 17
AMT Sharpe Ratio Rank: 12
AMT Sortino Ratio Rank: 13
AMT Omega Ratio Rank: 14
AMT Calmar Ratio Rank: 20
AMT Martin Ratio Rank: 23

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

CLFD vs. AMT - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Clearfield, Inc. (CLFD) and American Tower Corporation (AMT). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

	CLFD	AMT	Difference
Sharpe ratio Return per unit of total volatility	-0.23	-0.72	+0.49
Sortino ratio Return per unit of downside risk	0.02	-0.88	+0.90
Omega ratio Gain probability vs. loss probability	1.00	0.89	+0.11
Calmar ratio Return relative to maximum drawdown	-0.28	-0.64	+0.36
Martin ratio Return relative to average drawdown	-0.47	-1.06	+0.59
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CLFD vs. AMT - Sharpe Ratio Comparison

The current CLFD Sharpe Ratio is -0.23, which is higher than the AMT Sharpe Ratio of -0.72. The chart below compares the historical Sharpe Ratios of CLFD and AMT, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	CLFD	AMT	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.23	-0.72	+0.49
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.06	-0.14	+0.08
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.10	0.30	-0.20
Sharpe Ratio (All Time) Calculated using the full available price history	0.10	0.20	-0.10

Correlation

The correlation between CLFD and AMT is 0.13, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

CLFD vs. AMT - Dividend Comparison

CLFD has not paid dividends to shareholders, while AMT's dividend yield for the trailing twelve months is around 3.94%.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
CLFD Clearfield, Inc.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
AMT American Tower Corporation	3.94%	3.87%	3.53%	2.99%	2.77%	1.78%	2.02%	1.64%	1.99%	1.84%	2.05%	1.87%

Drawdowns

CLFD vs. AMT - Drawdown Comparison

The maximum CLFD drawdown since its inception was -98.62%, roughly equal to the maximum AMT drawdown of -98.70%. Use the drawdown chart below to compare losses from any high point for CLFD and AMT.

Drawdown Indicators

	CLFD	AMT	Difference
Max Drawdown Largest peak-to-trough decline	-98.62%	-98.70%	+0.08%
Max Drawdown (1Y) Largest decline over 1 year	-41.62%	-26.67%	-14.95%
Max Drawdown (5Y) Largest decline over 5 years	-82.52%	-45.34%	-37.18%
Max Drawdown (10Y) Largest decline over 10 years	-82.52%	-45.34%	-37.18%
Current Drawdown Current decline from peak	-79.89%	-34.82%	-45.07%
Average Drawdown Average peak-to-trough decline	-62.96%	-26.99%	-35.97%
Ulcer Index Depth and duration of drawdowns from previous peaks	24.70%	16.20%	+8.50%

Volatility

CLFD vs. AMT - Volatility Comparison

Clearfield, Inc. (CLFD) has a higher volatility of 9.96% compared to American Tower Corporation (AMT) at 7.17%. This indicates that CLFD's price experiences larger fluctuations and is considered to be riskier than AMT based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CLFD	AMT	Difference
Volatility (1M) Calculated over the trailing 1-month period	9.96%	7.17%	+2.79%
Volatility (6M) Calculated over the trailing 6-month period	29.37%	17.58%	+11.79%
Volatility (1Y) Calculated over the trailing 1-year period	48.27%	25.02%	+23.25%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	56.40%	26.01%	+30.39%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	51.09%	25.98%	+25.11%

Financials

CLFD vs. AMT - Profitability Comparison

The chart below illustrates the profitability comparison between Clearfield, Inc. and American Tower Corporation over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

CLFD - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Clearfield, Inc. reported a gross profit of 11.39M and revenue of 34.34M. Therefore, the gross margin over that period was 33.2%.

AMT - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, American Tower Corporation reported a gross profit of 1.94B and revenue of 2.74B. Therefore, the gross margin over that period was 70.7%.

CLFD - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Clearfield, Inc. reported an operating income of -1.82M and revenue of 34.34M, resulting in an operating margin of -5.3%.

AMT - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, American Tower Corporation reported an operating income of 1.16B and revenue of 2.74B, resulting in an operating margin of 42.4%.

CLFD - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Clearfield, Inc. reported a net income of -614.00K and revenue of 34.34M, resulting in a net margin of -1.8%.

AMT - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, American Tower Corporation reported a net income of 821.00M and revenue of 2.74B, resulting in a net margin of 30.0%.