FAST vs. PNR: Fastenal vs. Pentair Stock Comparison

November 11, 2026

How do Fastenal (FAST) and Pentair (PNR) 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

Fastenal (FAST) and Pentair (PNR) both fall under the Capital Goods industry group, but FAST is classified in Trading Companies & Distributors while PNR is classified in Machinery.

Company profile comparison for Fastenal (FAST) and Pentair (PNR)
Profile Item	FAST	PNR
Name	Fastenal Co.	Pentair plc
Country/Region	United States	United Kingdom
GICS Sector	Industrials	Industrials
GICS Industry Group	Capital Goods	Capital Goods
GICS Industry	Trading Companies & Distributors	Machinery
GICS Sub-Industry	Trading Companies & Distributors	Industrial Machinery & Supplies & Components
Market Capitalization	60.80 billion USD	10.88 billion USD
Currency	USD	USD
Exchange	Nasdaq	NYSE
Listing Date	August 20, 1987	May 3, 1973
Security Type	Common Stock	Common Stock

Price Performance

Cumulative Growth

FAST

PNR

GSPC

Fastenal (FAST) vs. Pentair (PNR), 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

Loading price history…

Trailing total returns for Fastenal (FAST) and Pentair (PNR). Returns over one year are annualized.

Calendar-Year Returns

Loading price history…

Calendar-year total returns for Fastenal (FAST) and Pentair (PNR). Each bar is that year's total return, measured year-end to year-end.

Performance Metrics

Price performance metrics for Fastenal (FAST) and Pentair (PNR)
Metric	FAST	PNR
Total Return (1Y)	36.82%	-33.74%
Total Return (3Y, Annualized)	25.71%	6.19%
Total Return (5Y, Annualized)	15.98%	0.13%

Risk Profile

Drawdown History

FAST

PNR

GSPC

Fastenal (FAST) vs. Pentair (PNR), 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

Loading price history…

Distribution of monthly total returns for Fastenal (FAST) and Pentair (PNR). Each bar is the share of months whose return fell in that 5% bucket.

Risk Metrics

Risk profile metrics for Fastenal (FAST) and Pentair (PNR)
Metric	FAST	PNR
Volatility (1Y, Annualized)	24.55%	36.79%
Beta (5Y)	0.64	0.99
Max Drawdown (5Y)	-30.71%	-53.15%
Avg. Volume (3M)	7.21M	3.26M

Risk-Adjusted Performance

Risk-Return Positioning

FAST and PNR 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 Fastenal (FAST) and Pentair (PNR)
Metric	FAST	PNR
Sharpe Ratio (1Y)	1.33	-1.03
Sortino Ratio (1Y)	2.00	-1.35

Profitability

ROE (TTM)

Fastenal (FAST) at 35.26% sits in the top ROE quartile, while Pentair (PNR) at 15.61% is closer to the peer norm — stronger capital efficiency for FAST.

FAST

Capital Goods industry group

35.26%

Max: 40.55%
FAST: 35.26%
Q3: 19.29%
Median: 12.12%
Q1: 4.08%
Min: -17.12%

PNR

Capital Goods industry group

15.61%

Max: 40.55%
Q3: 19.29%
PNR: 15.61%
Median: 12.12%
Q1: 4.08%
Min: -17.12%

Fastenal (FAST) vs. Pentair (PNR): A comparison of their ROE against the Capital Goods industry group benchmark.

Net Margin (TTM)

For every dollar of sales, both Fastenal (FAST) at 15.62% and Pentair (PNR) at 15.44% retain more as net profit than most peers, landing in the top net margin quartile of their industries.

FAST

Capital Goods industry group

15.62%

Max: 27.47%
FAST: 15.62%
Q3: 12.10%
Median: 6.30%
Q1: 1.40%
Min: -12.89%

PNR

Capital Goods industry group

15.44%

Max: 27.47%
PNR: 15.44%
Q3: 12.10%
Median: 6.30%
Q1: 1.40%
Min: -12.89%

Fastenal (FAST) vs. Pentair (PNR): A comparison of their net margin against the Capital Goods industry group benchmark.

Operating Margin (TTM)

Both Fastenal (FAST) at 21.55% and Pentair (PNR) at 21.90% convert sales into operating profit at a top-quartile rate, pointing to tighter cost discipline before financing and tax.

FAST

Capital Goods industry group

21.55%

Max: 36.60%
FAST: 21.55%
Q3: 18.33%
Median: 11.12%
Q1: 5.14%
Min: -12.63%

PNR

Capital Goods industry group

21.90%

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

Fastenal (FAST) vs. Pentair (PNR): A comparison of their operating margin against the Capital Goods industry group benchmark.

Profitability Metrics

Profitability metrics for Fastenal (FAST) and Pentair (PNR)
Metric	FAST	PNR
ROE (TTM)	35.26%	15.61%
ROA (TTM)	21.97%	7.91%
Net Margin (TTM)	15.62%	15.44%
Operating Margin (TTM)	21.55%	21.90%
Gross Margin (TTM)	44.61%	40.17%

Growth

Revenue Growth

Both Fastenal (FAST) at 8.67% and Pentair (PNR) at 2.28% land near their industries' usual revenue growth ranges, so top-line momentum looks broadly in line with peers on both sides.

Fastenal (FAST) vs. Pentair (PNR): A comparison of their Revenue Growth across different time periods.

EPS Growth

Both Fastenal (FAST) at 9.00% and Pentair (PNR) at 5.88% land near their industries' usual EPS growth ranges, so bottom-line momentum looks broadly in line with peers on both sides.

Fastenal (FAST) vs. Pentair (PNR): A comparison of their EPS Growth across different time periods.

Growth Metrics

Growth metrics for Fastenal (FAST) and Pentair (PNR)
Metric	FAST	PNR
Revenue Growth (YoY)	8.67%	2.28%
Revenue Growth (3Y CAGR)	5.52%	0.44%
EPS Growth (YoY)	9.00%	5.88%
EPS Growth (3Y CAGR)	4.87%	10.94%

Financial Strength

Current Ratio (MRQ)

Pentair (PNR) at 1.47 keeps current ratio within its industry’s typical mid-range, while Fastenal (FAST) at 3.93 sits above its industry’s typical mid-range — comfortable liquidity, though possibly with more idle current assets relative to peers.

FAST

Capital Goods industry group

3.93

Max: 5.22
FAST: 3.93
Q3: 2.95
Median: 2.08
Q1: 1.43
Min: 0.36

PNR

Capital Goods industry group

1.47

Max: 5.22
Q3: 2.95
Median: 2.08
PNR: 1.47
Q1: 1.43
Min: 0.36

Fastenal (FAST) vs. Pentair (PNR): A comparison of their current ratio against the Capital Goods industry group benchmark.

Debt / Equity (MRQ)

Fastenal (FAST) at 0.11 keeps leverage in the lower industry quartile, while Pentair (PNR) at 0.42 runs a more typical debt-to-equity mix.

FAST

Capital Goods industry group

0.11

Max: 2.33
Q3: 1.12
Median: 0.60
Q1: 0.29
FAST: 0.11
Min: 0.00

PNR

Capital Goods industry group

0.42

Max: 2.33
Q3: 1.12
Median: 0.60
PNR: 0.42
Q1: 0.29
Min: 0.00

Fastenal (FAST) vs. Pentair (PNR): A comparison of their debt-to-equity ratio against the Capital Goods industry group benchmark.

Financial Strength Metrics

Financial strength metrics for Fastenal (FAST) and Pentair (PNR)
Metric	FAST	PNR
Current Ratio (MRQ)	3.93	1.47
Debt / Equity (MRQ)	0.11	0.42
Net Debt / EBITDA	0.12	1.61

Dividends

Dividend Yield (TTM)

Both Fastenal (FAST) at 1.81% and Pentair (PNR) at 1.52% offer top-quartile dividend income relative to share price within their industries.

FAST

Capital Goods industry group

1.81%

Max: 2.66%
FAST: 1.81%
Q3: 1.14%
Median: 0.24%
Q1: 0.00%
Min: 0.00%

PNR

Capital Goods industry group

1.52%

Max: 2.66%
PNR: 1.52%
Q3: 1.14%
Median: 0.24%
Q1: 0.00%
Min: 0.00%

Fastenal (FAST) vs. Pentair (PNR): A comparison of their dividend yield against the Capital Goods industry group benchmark.

Dividend Payout Ratio (TTM)

Both pay out more than their industries’ typical bands, and FAST more so: Pentair (PNR) at 28.88% sits above the band, while Fastenal (FAST) at 78.05% exceeds every peer in its group.

FAST

Capital Goods industry group

78.05%

FAST: 78.05%
Max: 67.39%
Q3: 28.02%
Median: 6.86%
Q1: 0.00%
Min: 0.00%

PNR

Capital Goods industry group

28.88%

Max: 67.39%
PNR: 28.88%
Q3: 28.02%
Median: 6.86%
Q1: 0.00%
Min: 0.00%

Fastenal (FAST) vs. Pentair (PNR): A comparison of their payout ratio against the Capital Goods industry group benchmark.

Dividend Metrics

Dividend metrics for Fastenal (FAST) and Pentair (PNR)
Metric	FAST	PNR
Dividend Yield (TTM)	1.81%	1.52%
Dividend Payout Ratio (TTM)	78.05%	28.88%

Valuation

P/E Ratio (TTM)

Pentair (PNR) at 18.56 sits in the cheaper P/E ratio quartile, while Fastenal (FAST) at 43.08 sits in the richer quartile — a clear split in what investors pay for each dollar of trailing earnings.

FAST

Capital Goods industry group

43.08

Max: 59.38
FAST: 43.08
Q3: 35.92
Median: 25.41
Q1: 19.47
Min: 3.03

PNR

Capital Goods industry group

18.56

Max: 59.38
Q3: 35.92
Median: 25.41
Q1: 19.47
PNR: 18.56
Min: 3.03

Fastenal (FAST) vs. Pentair (PNR): A comparison of their P/E ratio against the Capital Goods industry group benchmark.

P/S Ratio (TTM)

Pentair (PNR) at 2.74 is priced about in line with its industry on P/S ratio, while Fastenal (FAST) at 6.70 sits in the pricier quartile — FAST costs more per dollar of sales.

FAST

Capital Goods industry group

6.70

Max: 7.54
FAST: 6.70
Q3: 3.76
Median: 2.15
Q1: 1.03
Min: 0.03

PNR

Capital Goods industry group

2.74

Max: 7.54
Q3: 3.76
PNR: 2.74
Median: 2.15
Q1: 1.03
Min: 0.03

Fastenal (FAST) vs. Pentair (PNR): A comparison of their P/S ratio against the Capital Goods industry group benchmark.

P/B Ratio (MRQ)

Pentair (PNR) at 2.82 sits near its industry’s typical P/B ratio, while Fastenal (FAST) at 14.65 prices above its benchmark range — FAST looks rich relative to book.

FAST

Capital Goods industry group

14.65

FAST: 14.65
Max: 9.66
Q3: 5.00
Median: 3.12
Q1: 1.81
Min: -1.08

PNR

Capital Goods industry group

2.82

Max: 9.66
Q3: 5.00
Median: 3.12
PNR: 2.82
Q1: 1.81
Min: -1.08

Fastenal (FAST) vs. Pentair (PNR): A comparison of their P/B ratio against the Capital Goods industry group benchmark.

Valuation Metrics

Valuation metrics for Fastenal (FAST) and Pentair (PNR)
Metric	FAST	PNR
P/E Ratio (TTM)	43.08	18.56
P/S Ratio (TTM)	6.70	2.74
P/B Ratio (MRQ)	14.65	2.82
Free Cash Flow Yield (TTM)	1.51%	4.77%