RIG vs. SDRL

Last updated Jun 4, 2026

RIG (Transocean Ltd.) and SDRL (Seadrill Limited) are both stocks. Both operate in the Oil & Gas Drilling industry within the Energy sector. Over the past 3 years, RIG returned -2.07%/yr vs 6.60%/yr for SDRL. A 0.69 correlation means they provide meaningful diversification when combined.

Performance

RIG vs. SDRL - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Transocean Ltd. (RIG) and Seadrill Limited (SDRL). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, RIG achieves a 49.64% return, which is significantly higher than SDRL's 32.46% return.

RIG

• 1D: -1.12%
• 1M: -10.17%
• YTD: 49.64%
• 6M: 38.88%
• 1Y: 127.21%
• 3Y*: -2.07%
• 5Y*: 6.93%
• 10Y*: -4.45%

SDRL

• 1D: -3.33%
• 1M: -7.15%
• YTD: 32.46%
• 6M: 39.85%
• 1Y: 83.91%
• 3Y*: 6.60%
• 5Y*: —
• 10Y*: —

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

RIG vs. SDRL - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
RIG Transocean Ltd.	49.64%	10.13%	-40.94%	39.25%	56.70%
SDRL Seadrill Limited	32.46%	-11.12%	-17.66%	44.85%	23.17%

Correlation

The correlation between RIG and SDRL is 0.70, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.70
Correlation (3Y) Calculated over the trailing 3-year period	0.71
Correlation (All Time) Calculated using the full available price history since Oct 17, 2022	0.69

The correlation between RIG and SDRL has been stable across timeframes, ranging from 0.69 to 0.71 - a consistent structural relationship.

Fundamentals

Market Cap RIG : $6.95B SDRL : $2.85B
EPS RIG : -$2.85 SDRL : -$0.38
PS Ratio RIG : 1.96 SDRL : 2.01
PB Ratio RIG : 0.85 SDRL : 1.00
Total Revenue (TTM) RIG : $3.06B SDRL : $1.45B
Gross Profit (TTM) RIG : $1.97B SDRL : $240.00M
EBITDA (TTM) RIG : -$2.10B SDRL : $285.00M

Return for Risk

RIG vs. SDRL — Risk / Return Rank

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

RIG

RIG Risk / Return Rank: 89
RIG Sharpe Ratio Rank: 90
RIG Sortino Ratio Rank: 85
RIG Omega Ratio Rank: 84
RIG Calmar Ratio Rank: 92
RIG Martin Ratio Rank: 92

SDRL

SDRL Risk / Return Rank: 87
SDRL Sharpe Ratio Rank: 88
SDRL Sortino Ratio Rank: 84
SDRL Omega Ratio Rank: 81
SDRL Calmar Ratio Rank: 91
SDRL Martin Ratio Rank: 91

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.

RIG vs. SDRL - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Transocean Ltd. (RIG) and Seadrill Limited (SDRL). 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.

	RIG	SDRL	Difference
Sharpe ratio Return per unit of total volatility	2.33	2.03	+0.31
Sortino ratio Return per unit of downside risk	2.78	2.68	+0.10
Omega ratio Gain probability vs. loss probability	1.35	1.32	+0.03
Calmar ratio Return relative to maximum drawdown	5.52	5.10	+0.42
Martin ratio Return relative to average drawdown	14.32	13.27	+1.05
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

RIG vs. SDRL - Sharpe Ratio Comparison

The current RIG Sharpe Ratio is 2.33, which is comparable to the SDRL Sharpe Ratio of 2.03. The chart below compares the historical Sharpe Ratios of RIG and SDRL, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	RIG	SDRL	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.33	2.03	+0.31
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.11	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	-0.06	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	-0.01	0.39	-0.40

Drawdowns

RIG vs. SDRL - Drawdown Comparison

The maximum RIG drawdown since its inception was -99.47%, which is greater than SDRL's maximum drawdown of -66.14%. Use the drawdown chart below to compare losses from any high point for RIG and SDRL.

Drawdown Indicators

	RIG	SDRL	Difference
Max Drawdown Largest peak-to-trough decline	-99.47%	-66.14%	-33.33%
Max Drawdown (1Y) Largest decline over 1 year	-23.19%	-16.54%	-6.65%
Max Drawdown (3Y) Largest decline over 3 years	-75.80%	-66.14%	-9.66%
Max Drawdown (5Y) Largest decline over 5 years	-75.80%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-95.77%	—	—
Current Drawdown Current decline from peak	-95.13%	-17.18%	-77.95%
Average Drawdown Average peak-to-trough decline	-57.14%	-22.97%	-34.17%
Ulcer Index Depth and duration of drawdowns from previous peaks	8.92%	6.34%	+2.58%

Volatility

RIG vs. SDRL - Volatility Comparison

Transocean Ltd. (RIG) has a higher volatility of 17.56% compared to Seadrill Limited (SDRL) at 10.55%. This indicates that RIG's price experiences larger fluctuations and is considered to be riskier than SDRL based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RIG	SDRL	Difference
Volatility (1M) Calculated over the trailing 1-month period	17.56%	10.55%	+7.01%
Volatility (6M) Calculated over the trailing 6-month period	37.66%	28.15%	+9.51%
Volatility (1Y) Calculated over the trailing 1-year period	55.19%	41.90%	+13.29%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	62.73%	42.21%	+20.52%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	74.70%	42.21%	+32.49%

Dividends

RIG vs. SDRL - Dividend Comparison

Neither RIG nor SDRL has paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
RIG Transocean Ltd.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	8.48%
SDRL Seadrill Limited	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Financials

Frequently Asked Questions

Can I hold both RIG and SDRL in my portfolio?

RIG and SDRL have a correlation of 0.70, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, RIG or SDRL?

RIG has higher volatility (17.56%) compared to SDRL (10.55%). In terms of maximum drawdown, RIG dropped -99.47% vs SDRL's -66.14%.

Which has better risk-adjusted returns?

RIG currently has the higher Sharpe Ratio (2.33 vs 2.03), 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.