LII vs. RKLB: A Head-to-Head Stock Comparison

Updated on October 15, 2025

Here’s a clear look at LII and RKLB, comparing key factors like historical performance, profitability, financial strength, growth, dividend, and valuation.

Company Profile

Symbol	LII	RKLB
Company Name	Lennox International Inc.	Rocket Lab Corporation
Country	United States	United States
GICS Sector	Industrials	Industrials
GICS Industry	Building Products	Aerospace & Defense
Market Capitalization	19.48 billion USD	31.61 billion USD
Exchange	NYSE	NasdaqCM
Listing Date	July 29, 1999	November 24, 2020
Security Type	Common Stock	Common Stock

Historical Performance

This chart compares the performance of LII and RKLB by tracking the growth of an initial $10,000 investment in each. Use the tabs to select the desired time period. Data is adjusted for dividends and splits.

LII vs. RKLB: Growth of a $10,000 investment over the past one year.

Historical Performance at a Glance

Symbol	LII	RKLB
5-Day Price Return	1.46%	24.47%
13-Week Price Return	-7.94%	66.86%
26-Week Price Return	1.42%	265.06%
52-Week Price Return	-6.63%	574.69%
Month-to-Date Return	4.76%	36.32%
Year-to-Date Return	-8.98%	156.42%
10-Day Avg. Volume	0.45M	27.06M
3-Month Avg. Volume	0.38M	23.87M
3-Month Volatility	32.68%	75.76%
Beta	1.18	2.17

Profitability

Return on Equity (TTM)

LII

99.44%

Building Products Industry

Max: 46.90%
Q3: 27.60%
Median: 15.43%
Q1: 8.94%
Min: 0.77%

LII’s Return on Equity of 99.44% is exceptionally high, placing it well beyond the typical range for the Building Products industry. This demonstrates a superior ability to generate profit from shareholder investments, though it could also be inflated by high financial leverage.

RKLB

-48.14%

Aerospace & Defense Industry

Max: 37.11%
Q3: 20.14%
Median: 11.72%
Q1: 6.30%
Min: -6.24%

RKLB has a negative Return on Equity of -48.14%. This indicates the company is generating a loss for its shareholders, which can be a result of unprofitability or negative shareholder equity and is often a sign of financial distress.

LII vs. RKLB: A comparison of their Return on Equity (TTM) against their respective Building Products and Aerospace & Defense industry benchmarks.

Net Profit Margin (TTM)

LII

15.41%

Building Products Industry

Max: 19.42%
Q3: 13.74%
Median: 8.72%
Q1: 4.81%
Min: 0.46%

A Net Profit Margin of 15.41% places LII in the upper quartile for the Building Products industry, signifying strong profitability and more effective cost management than most of its peers.

RKLB

-45.87%

Aerospace & Defense Industry

Max: 13.66%
Q3: 8.61%
Median: 6.59%
Q1: 4.92%
Min: 1.01%

RKLB has a negative Net Profit Margin of -45.87%, indicating the company is operating at a net loss as its expenses exceeded its revenues.

LII vs. RKLB: A comparison of their Net Profit Margin (TTM) against their respective Building Products and Aerospace & Defense industry benchmarks.

Operating Profit Margin (TTM)

LII

19.52%

Building Products Industry

Max: 26.72%
Q3: 17.70%
Median: 12.14%
Q1: 9.54%
Min: 1.65%

An Operating Profit Margin of 19.52% places LII in the upper quartile for the Building Products industry. This signals a strong ability to translate revenue into operating profit, outperforming most of its competitors in core business efficiency.

RKLB

-44.08%

Aerospace & Defense Industry

Max: 22.35%
Q3: 12.83%
Median: 9.29%
Q1: 6.38%
Min: -2.15%

RKLB has a negative Operating Profit Margin of -44.08%. This signifies the company is unprofitable at the operational level, as its core business expenses exceed its revenue.

LII vs. RKLB: A comparison of their Operating Profit Margin (TTM) against their respective Building Products and Aerospace & Defense industry benchmarks.

Profitability at a Glance

Symbol	LII	RKLB
Return on Equity (TTM)	99.44%	-48.14%
Return on Assets (TTM)	24.03%	-17.98%
Net Profit Margin (TTM)	15.41%	-45.87%
Operating Profit Margin (TTM)	19.52%	-44.08%
Gross Profit Margin (TTM)	33.13%	29.04%

Financial Strength

Current Ratio (MRQ)

LII

1.41

Building Products Industry

Max: 3.10
Q3: 2.06
Median: 1.60
Q1: 1.30
Min: 0.88

LII’s Current Ratio of 1.41 aligns with the median group of the Building Products industry, indicating that its short-term liquidity is in line with its sector peers.

RKLB

2.67

Aerospace & Defense Industry

Max: 3.35
Q3: 2.03
Median: 1.24
Q1: 1.04
Min: 0.77

RKLB’s Current Ratio of 2.67 is in the upper quartile for the Aerospace & Defense industry. This signifies a strong liquidity position, suggesting the company is well-equipped to cover its immediate liabilities compared to its peers.

LII vs. RKLB: A comparison of their Current Ratio (MRQ) against their respective Building Products and Aerospace & Defense industry benchmarks.

Debt-to-Equity Ratio (MRQ)

LII

1.31

Building Products Industry

Max: 1.64
Q3: 1.02
Median: 0.62
Q1: 0.20
Min: 0.00

LII’s leverage is in the upper quartile of the Building Products industry, with a Debt-to-Equity Ratio of 1.31. While this approach can boost equity growth, it also exposes the company to greater financial vulnerability.

RKLB

0.63

Aerospace & Defense Industry

Max: 1.72
Q3: 0.96
Median: 0.63
Q1: 0.37
Min: 0.03

RKLB’s Debt-to-Equity Ratio of 0.63 is typical for the Aerospace & Defense industry, indicating its use of leverage is in line with the sector norm. This suggests a balanced approach to its capital structure.

LII vs. RKLB: A comparison of their Debt-to-Equity Ratio (MRQ) against their respective Building Products and Aerospace & Defense industry benchmarks.

Interest Coverage Ratio (TTM)

LII

26.81

Building Products Industry

Max: 72.12
Q3: 34.39
Median: 23.97
Q1: 7.29
Min: 2.97

LII’s Interest Coverage Ratio of 26.81 is positioned comfortably within the norm for the Building Products industry, indicating a standard and healthy capacity to cover its interest payments.

RKLB

-45.87

Aerospace & Defense Industry

Max: 36.57
Q3: 19.08
Median: 7.25
Q1: 2.65
Min: -7.63

RKLB has a negative Interest Coverage Ratio of -45.87. This indicates that its earnings were insufficient to cover even its operational costs, let alone its interest payments, signaling significant financial distress.

LII vs. RKLB: A comparison of their Interest Coverage Ratio (TTM) against their respective Building Products and Aerospace & Defense industry benchmarks.

Financial Strength at a Glance

Symbol	LII	RKLB
Current Ratio (MRQ)	1.41	2.67
Quick Ratio (MRQ)	0.71	2.21
Debt-to-Equity Ratio (MRQ)	1.31	0.63
Interest Coverage Ratio (TTM)	26.81	-45.87

Growth

Revenue Growth

LII vs. RKLB: A side-by-side comparison of their Revenue Growth for the MRQ (YoY), TTM (YoY), 3-Year CAGR, and 5-Year CAGR periods.

EPS Growth

LII vs. RKLB: A side-by-side comparison of their EPS Growth for the MRQ (YoY), TTM (YoY), 3-Year CAGR, and 5-Year CAGR periods.

Dividend

Dividend Yield (TTM)

LII

0.84%

Building Products Industry

Max: 2.51%
Q3: 1.92%
Median: 1.30%
Q1: 0.78%
Min: 0.00%

LII’s Dividend Yield of 0.84% is consistent with its peers in the Building Products industry, providing a dividend return that is standard for its sector.

RKLB

0.00%

Aerospace & Defense Industry

Max: 2.72%
Q3: 1.45%
Median: 0.48%
Q1: 0.08%
Min: 0.00%

RKLB currently does not pay a dividend, resulting in a yield of 0%. This is a common strategy for growth-focused companies that prioritize reinvesting earnings, though it may be less typical in mature, income-oriented sectors.

LII vs. RKLB: A comparison of their Dividend Yield (TTM) against their respective Building Products and Aerospace & Defense industry benchmarks.

Dividend Payout Ratio (TTM)

LII

19.61%

Building Products Industry

Max: 157.36%
Q3: 76.90%
Median: 30.70%
Q1: 17.97%
Min: 0.00%

LII’s Dividend Payout Ratio of 19.61% is within the typical range for the Building Products industry, suggesting a balanced approach between shareholder payouts and company reinvestment.

RKLB

0.00%

Aerospace & Defense Industry

Max: 110.40%
Q3: 50.43%
Median: 17.11%
Q1: 0.46%
Min: 0.00%

RKLB has a Dividend Payout Ratio of 0%, indicating it does not currently pay a dividend. This is a common strategy for growth-oriented companies that reinvest all profits back into the business.

LII vs. RKLB: A comparison of their Dividend Payout Ratio (TTM) against their respective Building Products and Aerospace & Defense industry benchmarks.

Dividend at a Glance

Symbol	LII	RKLB
Dividend Yield (TTM)	0.84%	0.00%
Dividend Payout Ratio (TTM)	19.61%	0.00%

Valuation

Price-to-Earnings Ratio (TTM)

LII

23.35

Building Products Industry

Max: 45.60
Q3: 30.36
Median: 21.97
Q1: 17.37
Min: 12.44

LII’s P/E Ratio of 23.35 is within the middle range for the Building Products industry. This suggests its valuation is in line with the sector average, representing neither a significant premium nor a discount compared to its peers.

RKLB

Aerospace & Defense Industry

Max: 67.20
Q3: 55.74
Median: 33.28
Q1: 27.49
Min: 15.02

P/E Ratio data for RKLB is currently unavailable.

LII vs. RKLB: A comparison of their Price-to-Earnings Ratio (TTM) against their respective Building Products and Aerospace & Defense industry benchmarks.

Price-to-Sales Ratio (TTM)

LII

3.60

Building Products Industry

Max: 5.90
Q3: 3.09
Median: 1.72
Q1: 1.07
Min: 0.37

LII’s P/S Ratio of 3.60 is in the upper echelon for the Building Products industry. This means the company is valued richly on its revenue stream compared to its peers, suggesting the stock is priced for a high level of future performance.

RKLB

62.68

Aerospace & Defense Industry

Max: 9.06
Q3: 4.87
Median: 2.47
Q1: 1.61
Min: 0.33

With a P/S Ratio of 62.68, RKLB trades at a valuation that eclipses even the highest in the Aerospace & Defense industry. This implies the market has priced in exceptionally optimistic scenarios for future revenue growth, posing considerable valuation risk.

LII vs. RKLB: A comparison of their Price-to-Sales Ratio (TTM) against their respective Building Products and Aerospace & Defense industry benchmarks.

Price-to-Book Ratio (MRQ)

LII

22.59

Building Products Industry

Max: 10.99
Q3: 5.69
Median: 2.98
Q1: 1.80
Min: 0.66

At 22.59, LII’s P/B Ratio is at an extreme premium to the Building Products industry. This signifies that the market’s valuation is heavily reliant on future potential rather than its current net asset value, which can be a high-risk proposition.

RKLB

23.97

Aerospace & Defense Industry

Max: 14.90
Q3: 8.93
Median: 4.70
Q1: 3.03
Min: 0.83

At 23.97, RKLB’s P/B Ratio is at an extreme premium to the Aerospace & Defense industry. This signifies that the market’s valuation is heavily reliant on future potential rather than its current net asset value, which can be a high-risk proposition.

LII vs. RKLB: A comparison of their Price-to-Book Ratio (MRQ) against their respective Building Products and Aerospace & Defense industry benchmarks.

Valuation at a Glance

Symbol	LII	RKLB
Price-to-Earnings Ratio (TTM)	23.35	--
Price-to-Sales Ratio (TTM)	3.60	62.68
Price-to-Book Ratio (MRQ)	22.59	23.97
Price-to-Free Cash Flow Ratio (TTM)	26.28	--