PNR vs. FFIV

Last updated Jun 13, 2026

PNR (Pentair plc) and FFIV (F5 Networks, Inc.) are both stocks. PNR operates in Specialty Industrial Machinery (Industrials), while FFIV operates in Software - Infrastructure (Technology). Over the past 10 years, PNR returned 8.09%/yr vs 12.87%/yr for FFIV. At a 0.37 correlation, their price movements are largely independent.

Performance

PNR vs. FFIV - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Pentair plc (PNR) and F5 Networks, Inc. (FFIV). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, PNR achieves a -28.74% return, which is significantly lower than FFIV's 55.20% return. Over the past 10 years, PNR has underperformed FFIV with an annualized return of 8.09%, while FFIV has yielded a comparatively higher 12.87% annualized return.

PNR

• 1D: 1.69%
• 1M: 0.23%
• YTD: -28.74%
• 6M: -30.00%
• 1Y: -24.63%
• 3Y*: 7.93%
• 5Y*: 3.13%
• 10Y*: 8.09%

FFIV

• 1D: 0.59%
• 1M: 10.84%
• YTD: 55.20%
• 6M: 50.82%
• 1Y: 35.83%
• 3Y*: 38.11%
• 5Y*: 15.50%
• 10Y*: 12.87%

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

PNR vs. FFIV - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
PNR Pentair plc	-28.74%	4.53%	40.00%	64.16%	-37.38%	39.24%	17.89%	23.68%	-18.87%	28.67%
FFIV F5 Networks, Inc.	55.20%	1.51%	40.50%	24.72%	-41.36%	39.09%	25.99%	-13.81%	23.48%	-9.33%

Correlation

The correlation between PNR and FFIV is 0.30, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.30
Correlation (3Y) Calculated over the trailing 3-year period	0.45
Correlation (5Y) Calculated over the trailing 5-year period	0.52
Correlation (10Y) Calculated over the trailing 10-year period	0.49
Correlation (All Time) Calculated using the full available price history since Jun 4, 1999	0.37

The correlation between PNR and FFIV shifts across timeframes, from 0.30 (1 year) to 0.52 (5 years), reflecting how their relationship changes across market environments.

Fundamentals

Market Cap PNR : $12.08B FFIV : $22.70B
EPS PNR : $4.07 FFIV : $12.19
PE Ratio PNR : 18.13 FFIV : 32.50
PEG Ratio PNR : 3.24 FFIV : 1.42
PS Ratio PNR : 2.90 FFIV : 9.54
PB Ratio PNR : 3.17 FFIV : 6.22
Total Revenue (TTM) PNR : $4.20B FFIV : $2.41B
Gross Profit (TTM) PNR : $1.72B FFIV : $2.63B
EBITDA (TTM) PNR : $922.00M FFIV : $889.95M

Return for Risk

PNR vs. FFIV — Risk / Return Rank

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

PNR

PNR Risk / Return Rank: 10
PNR Sharpe Ratio Rank: 8
PNR Sortino Ratio Rank: 11
PNR Omega Ratio Rank: 10
PNR Calmar Ratio Rank: 18
PNR Martin Ratio Rank: 4

FFIV

FFIV Risk / Return Rank: 69
FFIV Sharpe Ratio Rank: 75
FFIV Sortino Ratio Rank: 69
FFIV Omega Ratio Rank: 70
FFIV Calmar Ratio Rank: 65
FFIV Martin Ratio Rank: 64

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.

PNR vs. FFIV - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Pentair plc (PNR) and F5 Networks, Inc. (FFIV). 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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	PNR	FFIV	Difference
Sharpe ratio: Return per unit of total volatility	-0.89	1.08	-1.97
Sortino ratio: Return per unit of downside risk	-1.11	1.58	-2.69
Omega ratio: Gain probability vs. loss probability	0.85	1.21	-0.36
Calmar ratio: Return relative to maximum drawdown	-0.67	1.04	-1.71
Martin ratio: Return relative to average drawdown	-1.62	2.28	-3.90

PNR vs. FFIV - Sharpe Ratio Comparison

The current PNR Sharpe Ratio is -0.89, which is lower than the FFIV Sharpe Ratio of 1.08. The chart below compares the historical Sharpe Ratios of PNR and FFIV, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

PNR vs. FFIV - Drawdown Comparison

The maximum PNR drawdown since its inception was -77.65%, smaller than the maximum FFIV drawdown of -97.59%. Use the drawdown chart below to compare losses from any high point for PNR and FFIV.

Drawdown Indicators

	PNR	FFIV	Difference
Max Drawdown Largest peak-to-trough decline	-77.65%	-97.59%	+19.94%
Max Drawdown (1Y) Largest decline over 1 year	-36.62%	-34.73%	-1.89%
Max Drawdown (3Y) Largest decline over 3 years	-36.62%	-34.73%	-1.89%
Max Drawdown (5Y) Largest decline over 5 years	-50.47%	-47.42%	-3.05%
Max Drawdown (10Y) Largest decline over 10 years	-52.34%	-54.59%	+2.25%
Current Drawdown Current decline from peak	-33.94%	-3.17%	-30.77%
Average Drawdown Average peak-to-trough decline	-19.45%	-40.16%	+20.71%
Ulcer Index Depth and duration of drawdowns from previous peaks	15.19%	15.77%	-0.58%

Volatility

PNR vs. FFIV - Volatility Comparison

Pentair plc (PNR) and F5 Networks, Inc. (FFIV) have volatilities of 8.55% and 8.89%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PNR	FFIV	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.55%	8.89%	-0.34%
Volatility (6M) Calculated over the trailing 6-month period	23.72%	24.72%	-1.00%
Volatility (1Y) Calculated over the trailing 1-year period	27.77%	33.48%	-5.71%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	28.90%	29.97%	-1.07%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	29.33%	29.56%	-0.23%

Dividends

PNR vs. FFIV - Dividend Comparison

PNR's dividend yield for the trailing twelve months is around 1.41%, while FFIV has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FFIV F5 Networks, 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%
PNR Pentair plc	1.41%	0.96%	0.91%	1.21%	1.87%	1.10%	1.43%	1.57%	2.17%	1.95%	2.39%	2.58%

Financials

Frequently Asked Questions

Can I hold both PNR and FFIV in my portfolio?

PNR and FFIV have a correlation of 0.30, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, PNR or FFIV?

FFIV has higher volatility (8.89%) compared to PNR (8.55%). In terms of maximum drawdown, PNR dropped -77.65% vs FFIV's -97.59%.

Which has better risk-adjusted returns?

FFIV currently has the higher Sharpe Ratio (1.08 vs -0.89), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.