ZG vs. RKLB

Last updated Apr 1, 2026

Compare and contrast key facts about Zillow Group, Inc. (ZG) and Rocket Lab USA, Inc. (RKLB).

Performance

ZG vs. RKLB - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Zillow Group, Inc. (ZG) and Rocket Lab USA, Inc. (RKLB). The values are adjusted to include any dividend payments, if applicable.

ZG vs. RKLB - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
ZG Zillow Group, Inc.	-39.34%	-3.70%	24.91%	81.74%	-49.84%	-36.39%
RKLB Rocket Lab USA, Inc.	-7.94%	173.89%	360.58%	46.68%	-69.30%	6.14%

Fundamentals

Market Cap ZG : $10.45B RKLB : $36.77B
EPS ZG : $0.09 RKLB : -$0.37
PS Ratio ZG : 4.06 RKLB : 57.49
PB Ratio ZG : 2.14 RKLB : 21.35
Total Revenue (TTM) ZG : $2.58B RKLB : $601.80M
Gross Profit (TTM) ZG : $1.92B RKLB : $207.18M
EBITDA (TTM) ZG : $235.00M RKLB : -$200.68M

Returns By Period

In the year-to-date period, ZG achieves a -39.34% return, which is significantly lower than RKLB's -7.94% return.

ZG

• 1D: 1.87%
• 1M: -7.61%
• YTD: -39.34%
• 6M: -44.40%
• 1Y: -38.09%
• 3Y*: -1.79%
• 5Y*: -21.11%
• 10Y*: 5.26%

RKLB

• 1D: 11.92%
• 1M: -7.06%
• YTD: -7.94%
• 6M: 34.04%
• 1Y: 259.17%
• 3Y*: 151.44%
• 5Y*: —
• 10Y*: —

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

Return for Risk

ZG vs. RKLB — Risk / Return Rank

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

ZG

ZG Risk / Return Rank: 10
ZG Sharpe Ratio Rank: 7
ZG Sortino Ratio Rank: 10
ZG Omega Ratio Rank: 10
ZG Calmar Ratio Rank: 16
ZG Martin Ratio Rank: 5

RKLB

RKLB Risk / Return Rank: 94
RKLB Sharpe Ratio Rank: 97
RKLB Sortino Ratio Rank: 92
RKLB Omega Ratio Rank: 89
RKLB Calmar Ratio Rank: 95
RKLB Martin Ratio Rank: 94

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.

ZG vs. RKLB - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Zillow Group, Inc. (ZG) and Rocket Lab USA, Inc. (RKLB). 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.

	ZG	RKLB	Difference
Sharpe ratio Return per unit of total volatility	-0.87	3.02	-3.89
Sortino ratio Return per unit of downside risk	-1.12	3.04	-4.16
Omega ratio Gain probability vs. loss probability	0.86	1.37	-0.51
Calmar ratio Return relative to maximum drawdown	-0.72	5.69	-6.41
Martin ratio Return relative to average drawdown	-1.69	14.42	-16.11
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ZG vs. RKLB - Sharpe Ratio Comparison

The current ZG Sharpe Ratio is -0.87, which is lower than the RKLB Sharpe Ratio of 3.02. The chart below compares the historical Sharpe Ratios of ZG and RKLB, 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

	ZG	RKLB	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.87	3.02	-3.89
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.40	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.10	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.02	0.57	-0.55

Correlation

The correlation between ZG and RKLB is 0.38, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

ZG vs. RKLB - Dividend Comparison

Neither ZG nor RKLB has paid dividends to shareholders.

Tickers have no history of dividend payments

Drawdowns

ZG vs. RKLB - Drawdown Comparison

The maximum ZG drawdown since its inception was -89.36%, which is greater than RKLB's maximum drawdown of -82.96%. Use the drawdown chart below to compare losses from any high point for ZG and RKLB.

Drawdown Indicators

	ZG	RKLB	Difference
Max Drawdown Largest peak-to-trough decline	-89.36%	-82.96%	-6.40%
Max Drawdown (1Y) Largest decline over 1 year	-53.42%	-43.01%	-10.41%
Max Drawdown (5Y) Largest decline over 5 years	-81.90%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-86.74%	—	—
Current Drawdown Current decline from peak	-79.69%	-33.31%	-46.38%
Average Drawdown Average peak-to-trough decline	-56.37%	-52.92%	-3.45%
Ulcer Index Depth and duration of drawdowns from previous peaks	22.68%	16.98%	+5.70%

Volatility

ZG vs. RKLB - Volatility Comparison

The current volatility for Zillow Group, Inc. (ZG) is 15.50%, while Rocket Lab USA, Inc. (RKLB) has a volatility of 29.42%. This indicates that ZG experiences smaller price fluctuations and is considered to be less risky than RKLB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ZG	RKLB	Difference
Volatility (1M) Calculated over the trailing 1-month period	15.50%	29.42%	-13.92%
Volatility (6M) Calculated over the trailing 6-month period	35.09%	64.09%	-29.00%
Volatility (1Y) Calculated over the trailing 1-year period	43.95%	86.56%	-42.61%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	52.72%	79.67%	-26.95%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	53.17%	79.67%	-26.50%

Financials

ZG vs. RKLB - Profitability Comparison

The chart below illustrates the profitability comparison between Zillow Group, Inc. and Rocket Lab USA, Inc. over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

ZG - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Zillow Group, Inc. reported a gross profit of 476.00M and revenue of 654.00M. Therefore, the gross margin over that period was 72.8%.

RKLB - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Rocket Lab USA, Inc. reported a gross profit of 68.23M and revenue of 179.65M. Therefore, the gross margin over that period was 38.0%.

ZG - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Zillow Group, Inc. reported an operating income of -11.00M and revenue of 654.00M, resulting in an operating margin of -1.7%.

RKLB - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Rocket Lab USA, Inc. reported an operating income of -51.04M and revenue of 179.65M, resulting in an operating margin of -28.4%.

ZG - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Zillow Group, Inc. reported a net income of 3.00M and revenue of 654.00M, resulting in a net margin of 0.5%.

RKLB - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Rocket Lab USA, Inc. reported a net income of -52.92M and revenue of 179.65M, resulting in a net margin of -29.5%.