RIG vs. TDW

Last updated Jun 4, 2026

RIG (Transocean Ltd.) and TDW (Tidewater Inc.) are both stocks. Both are in the Energy sector — RIG in Oil & Gas Drilling, TDW in Oil & Gas Equipment & Services. Over the past 10 years, RIG returned -4.45%/yr vs -7.01%/yr for TDW. A 0.62 correlation means they provide meaningful diversification when combined.

Performance

RIG vs. TDW - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Transocean Ltd. (RIG) and Tidewater Inc. (TDW). 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 TDW's 46.51% return. Over the past 10 years, RIG has outperformed TDW with an annualized return of -4.45%, while TDW has yielded a comparatively lower -7.01% annualized 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%

TDW

• 1D: -1.21%
• 1M: -15.02%
• YTD: 46.51%
• 6M: 23.85%
• 1Y: 73.18%
• 3Y*: 14.01%
• 5Y*: 38.14%
• 10Y*: -7.01%

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

RIG vs. TDW - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
RIG Transocean Ltd.	49.64%	10.13%	-40.94%	39.25%	65.22%	19.48%	-66.42%	-0.86%	-35.02%	-27.54%
TDW Tidewater Inc.	46.51%	-7.68%	-24.13%	95.69%	244.07%	23.96%	-55.14%	0.78%	-21.60%	-77.81%

Correlation

The correlation between RIG and TDW is 0.55, 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	0.55
Correlation (3Y) Calculated over the trailing 3-year period	0.64
Correlation (5Y) Calculated over the trailing 5-year period	0.65
Correlation (10Y) Calculated over the trailing 10-year period	0.58
Correlation (All Time) Calculated using the full available price history since Jun 1, 1993	0.62

The correlation between RIG and TDW shifts across timeframes, from 0.55 (1 year) to 0.65 (5 years), reflecting how their relationship changes across market environments.

Fundamentals

Market Cap RIG : $6.95B TDW : $3.67B
EPS RIG : -$2.85 TDW : $6.00
PS Ratio RIG : 1.96 TDW : 2.73
PB Ratio RIG : 0.85 TDW : 2.68
Total Revenue (TTM) RIG : $3.06B TDW : $1.35B
Gross Profit (TTM) RIG : $1.97B TDW : $314.74M
EBITDA (TTM) RIG : -$2.10B TDW : $489.31M

Return for Risk

RIG vs. TDW — 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

TDW

TDW Risk / Return Rank: 79
TDW Sharpe Ratio Rank: 78
TDW Sortino Ratio Rank: 78
TDW Omega Ratio Rank: 75
TDW Calmar Ratio Rank: 82
TDW Martin Ratio Rank: 79

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. TDW - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Transocean Ltd. (RIG) and Tidewater Inc. (TDW). 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	TDW	Difference
Sharpe ratio Return per unit of total volatility	2.33	1.35	+0.98
Sortino ratio Return per unit of downside risk	2.78	2.25	+0.53
Omega ratio Gain probability vs. loss probability	1.35	1.27	+0.08
Calmar ratio Return relative to maximum drawdown	5.52	2.92	+2.59
Martin ratio Return relative to average drawdown	14.32	6.52	+7.81
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. TDW - Sharpe Ratio Comparison

The current RIG Sharpe Ratio is 2.33, which is higher than the TDW Sharpe Ratio of 1.35. The chart below compares the historical Sharpe Ratios of RIG and TDW, 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	TDW	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.33	1.35	+0.98
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.11	0.72	-0.61
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	-0.06	-0.11	+0.05
Sharpe Ratio (All Time) Calculated using the full available price history	-0.01	-0.01	0.00

Drawdowns

RIG vs. TDW - Drawdown Comparison

The maximum RIG drawdown since its inception was -99.47%, roughly equal to the maximum TDW drawdown of -99.80%. Use the drawdown chart below to compare losses from any high point for RIG and TDW.

Drawdown Indicators

	RIG	TDW	Difference
Max Drawdown Largest peak-to-trough decline	-99.47%	-99.80%	+0.33%
Max Drawdown (1Y) Largest decline over 1 year	-23.19%	-25.16%	+1.97%
Max Drawdown (3Y) Largest decline over 3 years	-75.80%	-70.35%	-5.45%
Max Drawdown (5Y) Largest decline over 5 years	-75.80%	-70.35%	-5.45%
Max Drawdown (10Y) Largest decline over 10 years	-95.77%	-97.72%	+1.95%
Current Drawdown Current decline from peak	-95.13%	-96.42%	+1.29%
Average Drawdown Average peak-to-trough decline	-57.14%	-48.96%	-8.18%
Ulcer Index Depth and duration of drawdowns from previous peaks	8.92%	11.27%	-2.35%

Volatility

RIG vs. TDW - Volatility Comparison

Transocean Ltd. (RIG) has a higher volatility of 17.56% compared to Tidewater Inc. (TDW) at 11.16%. This indicates that RIG's price experiences larger fluctuations and is considered to be riskier than TDW based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RIG	TDW	Difference
Volatility (1M) Calculated over the trailing 1-month period	17.56%	11.16%	+6.40%
Volatility (6M) Calculated over the trailing 6-month period	37.66%	32.15%	+5.51%
Volatility (1Y) Calculated over the trailing 1-year period	55.19%	54.71%	+0.48%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	62.73%	53.45%	+9.28%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	74.70%	66.77%	+7.93%

Dividends

RIG vs. TDW - Dividend Comparison

Neither RIG nor TDW 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%
TDW Tidewater Inc.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.12%	0.00%	0.00%	0.04%	0.00%	14.37%

Financials

Frequently Asked Questions

Can I hold both RIG and TDW in my portfolio?

RIG and TDW have a correlation of 0.55, 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 TDW?

RIG has higher volatility (17.56%) compared to TDW (11.16%). In terms of maximum drawdown, RIG dropped -99.47% vs TDW's -99.80%.

Which has better risk-adjusted returns?

RIG currently has the higher Sharpe Ratio (2.33 vs 1.35), 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.