PH vs. ROK: Parker-Hannifin vs. Rockwell Automation Stock Comparison

November 11, 2026

How do Parker-Hannifin (PH) and Rockwell Automation (ROK) stack up? This page sets them side by side across company profile, performance and risk, profitability, growth, financial strength, dividends, and valuation, with selected fundamentals also measured against each stock's industry-group peers.

Company Profile

Parker-Hannifin (PH) and Rockwell Automation (ROK) both fall under the Capital Goods industry group, but PH is classified in Machinery while ROK is classified in Electrical Equipment.

Company profile comparison for Parker-Hannifin (PH) and Rockwell Automation (ROK)
Profile Item	PH	ROK
Name	Parker-Hannifin Corporation	Rockwell Automation Inc.
Country/Region	United States	United States
GICS Sector	Industrials	Industrials
GICS Industry Group	Capital Goods	Capital Goods
GICS Industry	Machinery	Electrical Equipment
GICS Sub-Industry	Industrial Machinery & Supplies & Components	Electrical Components & Equipment
Market Capitalization	115.73 billion USD	41.82 billion USD
Currency	USD	USD
Exchange	NYSE	NYSE
Listing Date	March 17, 1980	December 31, 1981
Security Type	Common Stock	Common Stock

Price Performance

Cumulative Growth

ROK

GSPC

Parker-Hannifin (PH) vs. Rockwell Automation (ROK), with S&P 500 (GSPC) for reference: Growth of a $10,000 investment over the past five years. Adjusted for dividends and splits.

Trailing Returns

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Trailing total returns for Parker-Hannifin (PH) and Rockwell Automation (ROK). Returns over one year are annualized.

Calendar-Year Returns

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Calendar-year total returns for Parker-Hannifin (PH) and Rockwell Automation (ROK). Each bar is that year's total return, measured year-end to year-end.

Performance Metrics

Price performance metrics for Parker-Hannifin (PH) and Rockwell Automation (ROK)
Metric	PH	ROK
Total Return (1Y)	14.13%	6.19%
Total Return (3Y, Annualized)	33.71%	16.94%
Total Return (5Y, Annualized)	25.35%	4.86%

Risk Profile

Drawdown History

ROK

GSPC

Parker-Hannifin (PH) vs. Rockwell Automation (ROK), with S&P 500 (GSPC) for reference: Drawdown from the running peak over the past five years. Each line shows the decline from its prior peak; 0% marks a new high.

Return Distribution

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Distribution of monthly total returns for Parker-Hannifin (PH) and Rockwell Automation (ROK). Each bar is the share of months whose return fell in that 5% bucket.

Risk Metrics

Risk profile metrics for Parker-Hannifin (PH) and Rockwell Automation (ROK)
Metric	PH	ROK
Volatility (1Y, Annualized)	27.33%	34.28%
Beta (5Y)	1.12	1.54
Max Drawdown (5Y)	-28.64%	-45.09%
Avg. Volume (3M)	627.57K	799.28K

Risk-Adjusted Performance

Risk-Return Positioning

PH and ROK are plotted by 1-year volatility (risk) and 1-year return. The dashed Capital Allocation Line runs from the risk-free rate through the shared industry median.

Risk-Adjusted Metrics

Risk-adjusted metrics for Parker-Hannifin (PH) and Rockwell Automation (ROK)
Metric	PH	ROK
Sharpe Ratio (1Y)	0.36	0.06
Sortino Ratio (1Y)	0.53	0.07

Profitability

ROE (TTM)

Both Parker-Hannifin (PH) at 24.95% and Rockwell Automation (ROK) at 38.73% sit in the top peer quartile for ROE, suggesting each generates more profit from shareholders’ equity than typical industry peers.

PH

Capital Goods industry group

24.95%

Max: 40.55%
PH: 24.95%
Q3: 19.29%
Median: 12.12%
Q1: 4.08%
Min: -17.12%

ROK

Capital Goods industry group

38.73%

Max: 40.55%
ROK: 38.73%
Q3: 19.29%
Median: 12.12%
Q1: 4.08%
Min: -17.12%

Parker-Hannifin (PH) vs. Rockwell Automation (ROK): A comparison of their ROE against the Capital Goods industry group benchmark.

Net Margin (TTM)

For every dollar of sales, both Parker-Hannifin (PH) at 16.62% and Rockwell Automation (ROK) at 15.68% retain more as net profit than most peers, landing in the top net margin quartile of their industries.

PH

Capital Goods industry group

16.62%

Max: 27.47%
PH: 16.62%
Q3: 12.10%
Median: 6.30%
Q1: 1.40%
Min: -12.89%

ROK

Capital Goods industry group

15.68%

Max: 27.47%
ROK: 15.68%
Q3: 12.10%
Median: 6.30%
Q1: 1.40%
Min: -12.89%

Parker-Hannifin (PH) vs. Rockwell Automation (ROK): A comparison of their net margin against the Capital Goods industry group benchmark.

Operating Margin (TTM)

Parker-Hannifin (PH) at 21.90% operates in the top operating margin quartile, ahead of Rockwell Automation (ROK) at 14.75%, which runs around its industry’s norm.

PH

Capital Goods industry group

21.90%

Max: 36.60%
PH: 21.90%
Q3: 18.33%
Median: 11.12%
Q1: 5.14%
Min: -12.63%

ROK

Capital Goods industry group

14.75%

Max: 36.60%
Q3: 18.33%
ROK: 14.75%
Median: 11.12%
Q1: 5.14%
Min: -12.63%

Parker-Hannifin (PH) vs. Rockwell Automation (ROK): A comparison of their operating margin against the Capital Goods industry group benchmark.

Profitability Metrics

Profitability metrics for Parker-Hannifin (PH) and Rockwell Automation (ROK)
Metric	PH	ROK
ROE (TTM)	24.95%	38.73%
ROA (TTM)	8.56%	9.32%
Net Margin (TTM)	16.62%	15.68%
Operating Margin (TTM)	21.90%	14.75%
Gross Margin (TTM)	37.70%	48.95%

Growth

Revenue Growth

Only one side can be read here: Parker-Hannifin (PH) reports revenue growth of 8.31%, ranked against its industry; Rockwell Automation (ROK) has no revenue growth figure this period.

Parker-Hannifin (PH) vs. Rockwell Automation (ROK): A comparison of their Revenue Growth across different time periods.

EPS Growth

Rockwell Automation (ROK) at 63.49% sits in the top EPS growth quartile, while Parker-Hannifin (PH) at 5.01% is closer to the peer norm — faster per-share earnings growth for ROK.

Parker-Hannifin (PH) vs. Rockwell Automation (ROK): A comparison of their EPS Growth across different time periods.

Growth Metrics

Growth metrics for Parker-Hannifin (PH) and Rockwell Automation (ROK)
Metric	PH	ROK
Revenue Growth (YoY)	8.31%	--
Revenue Growth (3Y CAGR)	4.09%	--
EPS Growth (YoY)	5.01%	63.49%
EPS Growth (3Y CAGR)	21.09%	1.62%

Financial Strength

Current Ratio (MRQ)

Rockwell Automation (ROK) at 2.11 keeps current ratio within its industry’s typical mid-range, while Parker-Hannifin (PH) at 0.94 runs in the tighter-liquidity quartile — a thinner cushion against current liabilities for PH.

PH

Capital Goods industry group

0.94

Max: 5.22
Q3: 2.95
Median: 2.08
Q1: 1.43
PH: 0.94
Min: 0.36

ROK

Capital Goods industry group

2.11

Max: 5.22
Q3: 2.95
ROK: 2.11
Median: 2.08
Q1: 1.43
Min: 0.36

Parker-Hannifin (PH) vs. Rockwell Automation (ROK): A comparison of their current ratio against the Capital Goods industry group benchmark.

Debt / Equity (MRQ)

Both Parker-Hannifin (PH) at 1.09 and Rockwell Automation (ROK) at 1.00 fund their balance sheets with roughly industry-typical debt-to-equity mixes.

PH

Capital Goods industry group

1.09

Max: 2.33
Q3: 1.12
PH: 1.09
Median: 0.60
Q1: 0.29
Min: 0.00

ROK

Capital Goods industry group

1.00

Max: 2.33
Q3: 1.12
ROK: 1.00
Median: 0.60
Q1: 0.29
Min: 0.00

Parker-Hannifin (PH) vs. Rockwell Automation (ROK): A comparison of their debt-to-equity ratio against the Capital Goods industry group benchmark.

Financial Strength Metrics

Financial strength metrics for Parker-Hannifin (PH) and Rockwell Automation (ROK)
Metric	PH	ROK
Current Ratio (MRQ)	0.94	2.11
Debt / Equity (MRQ)	1.09	1.00
Net Debt / EBITDA	2.81	1.58

Dividends

Dividend Yield (TTM)

Rockwell Automation (ROK) pays no dividend (yield 0.00%) — it may be reinvesting, using buybacks, or simply not returning cash through dividends. Meanwhile Parker-Hannifin (PH) reports a yield of 0.85%, ranking against industry peers normally.

PH

Capital Goods industry group

0.85%

Max: 2.66%
Q3: 1.14%
PH: 0.85%
Median: 0.24%
Q1: 0.00%
Min: 0.00%

ROK

Capital Goods industry group

0.00%

Max: 2.66%
Q3: 1.14%
Median: 0.24%
ROK: 0.00%
Q1: 0.00%
Min: 0.00%

Parker-Hannifin (PH) vs. Rockwell Automation (ROK): A comparison of their dividend yield against the Capital Goods industry group benchmark.

Dividend Payout Ratio (TTM)

Parker-Hannifin (PH) at 26.11% pays out a band-typical share of earnings, while Rockwell Automation (ROK) at 51.03% distributes more than its industry norm — less retained, thinner cover.

PH

Capital Goods industry group

26.11%

Max: 67.39%
Q3: 28.02%
PH: 26.11%
Median: 6.86%
Q1: 0.00%
Min: 0.00%

ROK

Capital Goods industry group

51.03%

Max: 67.39%
ROK: 51.03%
Q3: 28.02%
Median: 6.86%
Q1: 0.00%
Min: 0.00%

Parker-Hannifin (PH) vs. Rockwell Automation (ROK): A comparison of their payout ratio against the Capital Goods industry group benchmark.

Dividend Metrics

Dividend metrics for Parker-Hannifin (PH) and Rockwell Automation (ROK)
Metric	PH	ROK
Dividend Yield (TTM)	0.85%	0.00%
Dividend Payout Ratio (TTM)	26.11%	51.03%

Valuation

P/E Ratio (TTM)

Both Parker-Hannifin (PH) at 31.53 and Rockwell Automation (ROK) at 29.97 land around their industries’ usual P/E ratio levels — neither is getting a clear earnings-multiple discount or premium versus peers.

PH

Capital Goods industry group

31.53

Max: 59.38
Q3: 35.92
PH: 31.53
Median: 25.41
Q1: 19.47
Min: 3.03

ROK

Capital Goods industry group

29.97

Max: 59.38
Q3: 35.92
ROK: 29.97
Median: 25.41
Q1: 19.47
Min: 3.03

Parker-Hannifin (PH) vs. Rockwell Automation (ROK): A comparison of their P/E ratio against the Capital Goods industry group benchmark.

P/S Ratio (TTM)

Both Parker-Hannifin (PH) at 5.16 and Rockwell Automation (ROK) at 4.65 command a richer price per dollar of sales than most peers, sitting in the upper P/S ratio quartile of their industries.

PH

Capital Goods industry group

5.16

Max: 7.54
PH: 5.16
Q3: 3.76
Median: 2.15
Q1: 1.03
Min: 0.03

ROK

Capital Goods industry group

4.65

Max: 7.54
ROK: 4.65
Q3: 3.76
Median: 2.15
Q1: 1.03
Min: 0.03

Parker-Hannifin (PH) vs. Rockwell Automation (ROK): A comparison of their P/S ratio against the Capital Goods industry group benchmark.

P/B Ratio (MRQ)

Both look rich against book: Parker-Hannifin (PH) at 7.25 sits in the upper P/B ratio quartile, and Rockwell Automation (ROK) at 11.76 prices even higher, above its industry range.

PH

Capital Goods industry group

7.25

Max: 9.66
PH: 7.25
Q3: 5.00
Median: 3.12
Q1: 1.81
Min: -1.08

ROK

Capital Goods industry group

11.76

ROK: 11.76
Max: 9.66
Q3: 5.00
Median: 3.12
Q1: 1.81
Min: -1.08

Parker-Hannifin (PH) vs. Rockwell Automation (ROK): A comparison of their P/B ratio against the Capital Goods industry group benchmark.

Valuation Metrics

Valuation metrics for Parker-Hannifin (PH) and Rockwell Automation (ROK)
Metric	PH	ROK
P/E Ratio (TTM)	31.53	29.97
P/S Ratio (TTM)	5.16	4.65
P/B Ratio (MRQ)	7.25	11.76
Free Cash Flow Yield (TTM)	2.45%	-1.13%