IEX vs. CMI

Last updated Apr 2, 2026

Compare and contrast key facts about IDEX Corporation (IEX) and Cummins Inc. (CMI).

Performance

IEX vs. CMI - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in IDEX Corporation (IEX) and Cummins Inc. (CMI). The values are adjusted to include any dividend payments, if applicable.

IEX vs. CMI - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
IEX IDEX Corporation	8.28%	-13.69%	-2.35%	-3.80%	-2.22%	19.82%	17.22%	37.94%	-3.16%	48.53%
CMI Cummins Inc.	8.13%	49.36%	48.92%	1.72%	14.09%	-1.68%	30.50%	38.04%	-22.06%	32.74%

Fundamentals

Market Cap IEX : $14.36B CMI : $76.46B
EPS IEX : $6.42 CMI : $20.50
PE Ratio IEX : 29.89 CMI : 26.83
PEG Ratio IEX : 8.82 CMI : 0.30
PS Ratio IEX : 4.18 CMI : 2.27
PB Ratio IEX : 3.57 CMI : 6.19
Total Revenue (TTM) IEX : $3.46B CMI : $33.67B
Gross Profit (TTM) IEX : $1.54B CMI : $8.52B
EBITDA (TTM) IEX : $849.70M CMI : $5.06B

Returns By Period

The year-to-date returns for both stocks are quite close, with IEX having a 8.28% return and CMI slightly lower at 8.13%. Over the past 10 years, IEX has underperformed CMI with an annualized return of 10.01%, while CMI has yielded a comparatively higher 20.59% annualized return.

IEX

• 1D: 1.28%
• 1M: -9.25%
• YTD: 8.28%
• 6M: 17.92%
• 1Y: 7.63%
• 3Y*: -4.70%
• 5Y*: -0.75%
• 10Y*: 10.01%

CMI

• 1D: 2.24%
• 1M: -5.22%
• YTD: 8.13%
• 6M: 30.54%
• 1Y: 77.68%
• 3Y*: 35.10%
• 5Y*: 19.18%
• 10Y*: 20.59%

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

Return for Risk

IEX vs. CMI — Risk / Return Rank

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

IEX

IEX Risk / Return Rank: 48
IEX Sharpe Ratio Rank: 50
IEX Sortino Ratio Rank: 43
IEX Omega Ratio Rank: 44
IEX Calmar Ratio Rank: 52
IEX Martin Ratio Rank: 50

CMI

CMI Risk / Return Rank: 92
CMI Sharpe Ratio Rank: 92
CMI Sortino Ratio Rank: 90
CMI Omega Ratio Rank: 90
CMI Calmar Ratio Rank: 93
CMI Martin Ratio Rank: 95

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.

IEX vs. CMI - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for IDEX Corporation (IEX) and Cummins Inc. (CMI). 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.

	IEX	CMI	Difference
Sharpe ratio Return per unit of total volatility	0.27	2.29	-2.02
Sortino ratio Return per unit of downside risk	0.57	2.89	-2.32
Omega ratio Gain probability vs. loss probability	1.08	1.40	-0.33
Calmar ratio Return relative to maximum drawdown	0.45	4.77	-4.31
Martin ratio Return relative to average drawdown	0.84	15.91	-15.07
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

IEX vs. CMI - Sharpe Ratio Comparison

The current IEX Sharpe Ratio is 0.27, which is lower than the CMI Sharpe Ratio of 2.29. The chart below compares the historical Sharpe Ratios of IEX and CMI, 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

	IEX	CMI	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.27	2.29	-2.02
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.03	0.71	-0.74
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.42	0.74	-0.32
Sharpe Ratio (All Time) Calculated using the full available price history	0.14	0.37	-0.23

Correlation

The correlation between IEX and CMI is 0.45, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.

Dividends

IEX vs. CMI - Dividend Comparison

IEX's dividend yield for the trailing twelve months is around 1.48%, more than CMI's 1.42% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IEX IDEX Corporation	1.48%	1.58%	1.29%	1.16%	1.02%	0.90%	1.00%	1.12%	1.31%	1.10%	1.49%	1.62%
CMI Cummins Inc.	1.42%	1.50%	2.01%	2.71%	2.49%	2.57%	2.33%	2.74%	3.32%	2.38%	2.93%	3.99%

Drawdowns

IEX vs. CMI - Drawdown Comparison

The maximum IEX drawdown since its inception was -81.60%, which is greater than CMI's maximum drawdown of -75.66%. Use the drawdown chart below to compare losses from any high point for IEX and CMI.

Drawdown Indicators

	IEX	CMI	Difference
Max Drawdown Largest peak-to-trough decline	-81.60%	-75.66%	-5.94%
Max Drawdown (1Y) Largest decline over 1 year	-17.02%	-16.52%	-0.50%
Max Drawdown (5Y) Largest decline over 5 years	-34.60%	-30.48%	-4.12%
Max Drawdown (10Y) Largest decline over 10 years	-35.52%	-44.05%	+8.53%
Current Drawdown Current decline from peak	-19.66%	-8.87%	-10.79%
Average Drawdown Average peak-to-trough decline	-11.43%	-22.31%	+10.88%
Ulcer Index Depth and duration of drawdowns from previous peaks	9.20%	4.95%	+4.25%

Volatility

IEX vs. CMI - Volatility Comparison

The current volatility for IDEX Corporation (IEX) is 7.88%, while Cummins Inc. (CMI) has a volatility of 10.83%. This indicates that IEX experiences smaller price fluctuations and is considered to be less risky than CMI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IEX	CMI	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.88%	10.83%	-2.95%
Volatility (6M) Calculated over the trailing 6-month period	16.25%	25.18%	-8.93%
Volatility (1Y) Calculated over the trailing 1-year period	28.60%	34.07%	-5.47%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	23.75%	27.10%	-3.35%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	24.10%	27.88%	-3.78%

Financials

IEX vs. CMI - Profitability Comparison

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

IEX - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, IDEX Corporation reported a gross profit of 387.10M and revenue of 899.10M. Therefore, the gross margin over that period was 43.1%.

CMI - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Cummins Inc. reported a gross profit of 1.95B and revenue of 8.54B. Therefore, the gross margin over that period was 22.9%.

IEX - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, IDEX Corporation reported an operating income of 163.10M and revenue of 899.10M, resulting in an operating margin of 18.1%.

CMI - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Cummins Inc. reported an operating income of 670.00M and revenue of 8.54B, resulting in an operating margin of 7.9%.

IEX - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, IDEX Corporation reported a net income of 128.30M and revenue of 899.10M, resulting in a net margin of 14.3%.

CMI - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Cummins Inc. reported a net income of 593.00M and revenue of 8.54B, resulting in a net margin of 7.0%.