OLN vs. WLK

Last updated Apr 2, 2026

Compare and contrast key facts about Olin Corporation (OLN) and Westlake Corporation (WLK).

Performance

OLN vs. WLK - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Olin Corporation (OLN) and Westlake Corporation (WLK). The values are adjusted to include any dividend payments, if applicable.

OLN vs. WLK - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
OLN Olin Corporation	41.49%	-36.15%	-36.29%	3.46%	-6.63%	138.55%	50.81%	-10.77%	-41.88%	42.51%
WLK Westlake Corporation	58.45%	-33.77%	-16.90%	38.23%	6.81%	20.53%	18.52%	7.72%	-37.27%	92.39%

Fundamentals

Market Cap OLN : $3.33B WLK : $15.03B
EPS OLN : -$0.37 WLK : -$11.74
PS Ratio OLN : 0.50 WLK : 1.34
PB Ratio OLN : 1.73 WLK : 1.71
Total Revenue (TTM) OLN : $6.78B WLK : $11.17B
Gross Profit (TTM) OLN : $470.20M WLK : $289.00M
EBITDA (TTM) OLN : $589.90M WLK : -$248.00M

Returns By Period

In the year-to-date period, OLN achieves a 41.49% return, which is significantly lower than WLK's 58.45% return. Over the past 10 years, OLN has underperformed WLK with an annualized return of 8.30%, while WLK has yielded a comparatively higher 11.04% annualized return.

OLN

• 1D: -1.65%
• 1M: 15.99%
• YTD: 41.49%
• 6M: 16.15%
• 1Y: 27.33%
• 3Y*: -17.28%
• 5Y*: -3.79%
• 10Y*: 8.30%

WLK

• 1D: -0.21%
• 1M: 9.71%
• YTD: 58.45%
• 6M: 53.98%
• 1Y: 19.76%
• 3Y*: 2.05%
• 5Y*: 6.64%
• 10Y*: 11.04%

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

Return for Risk

OLN vs. WLK — Risk / Return Rank

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

OLN

OLN Risk / Return Rank: 56
OLN Sharpe Ratio Rank: 56
OLN Sortino Ratio Rank: 56
OLN Omega Ratio Rank: 54
OLN Calmar Ratio Rank: 59
OLN Martin Ratio Rank: 57

WLK

WLK Risk / Return Rank: 52
WLK Sharpe Ratio Rank: 54
WLK Sortino Ratio Rank: 52
WLK Omega Ratio Rank: 49
WLK Calmar Ratio Rank: 52
WLK Martin Ratio Rank: 51

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.

OLN vs. WLK - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Olin Corporation (OLN) and Westlake Corporation (WLK). 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.

	OLN	WLK	Difference
Sharpe ratio Return per unit of total volatility	0.43	0.39	+0.05
Sortino ratio Return per unit of downside risk	1.07	0.95	+0.12
Omega ratio Gain probability vs. loss probability	1.13	1.11	+0.02
Calmar ratio Return relative to maximum drawdown	0.79	0.45	+0.35
Martin ratio Return relative to average drawdown	1.59	0.93	+0.66
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

OLN vs. WLK - Sharpe Ratio Comparison

The current OLN Sharpe Ratio is 0.43, which is comparable to the WLK Sharpe Ratio of 0.39. The chart below compares the historical Sharpe Ratios of OLN and WLK, 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

	OLN	WLK	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.43	0.39	+0.05
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.08	0.18	-0.27
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.18	0.28	-0.10
Sharpe Ratio (All Time) Calculated using the full available price history	0.15	0.36	-0.21

Correlation

The correlation between OLN and WLK is 0.63, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.

Dividends

OLN vs. WLK - Dividend Comparison

OLN's dividend yield for the trailing twelve months is around 2.74%, more than WLK's 1.81% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
OLN Olin Corporation	2.74%	3.84%	2.37%	1.48%	1.51%	1.39%	3.26%	4.64%	3.98%	2.25%	3.12%	4.63%
WLK Westlake Corporation	1.81%	2.85%	1.79%	1.12%	1.28%	1.17%	1.31%	1.46%	1.39%	0.75%	1.33%	1.28%

Drawdowns

OLN vs. WLK - Drawdown Comparison

The maximum OLN drawdown since its inception was -73.80%, roughly equal to the maximum WLK drawdown of -75.16%. Use the drawdown chart below to compare losses from any high point for OLN and WLK.

Drawdown Indicators

	OLN	WLK	Difference
Max Drawdown Largest peak-to-trough decline	-73.80%	-75.16%	+1.36%
Max Drawdown (1Y) Largest decline over 1 year	-31.45%	-44.01%	+12.56%
Max Drawdown (5Y) Largest decline over 5 years	-71.87%	-64.20%	-7.67%
Max Drawdown (10Y) Largest decline over 10 years	-73.80%	-75.16%	+1.36%
Current Drawdown Current decline from peak	-52.56%	-24.95%	-27.61%
Average Drawdown Average peak-to-trough decline	-24.81%	-26.14%	+1.33%
Ulcer Index Depth and duration of drawdowns from previous peaks	15.72%	21.13%	-5.41%

Volatility

OLN vs. WLK - Volatility Comparison

Olin Corporation (OLN) has a higher volatility of 19.57% compared to Westlake Corporation (WLK) at 11.70%. This indicates that OLN's price experiences larger fluctuations and is considered to be riskier than WLK based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	OLN	WLK	Difference
Volatility (1M) Calculated over the trailing 1-month period	19.57%	11.70%	+7.87%
Volatility (6M) Calculated over the trailing 6-month period	43.05%	33.79%	+9.26%
Volatility (1Y) Calculated over the trailing 1-year period	63.41%	51.27%	+12.14%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	44.89%	36.63%	+8.26%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	47.02%	39.28%	+7.74%

Financials

OLN vs. WLK - Profitability Comparison

The chart below illustrates the profitability comparison between Olin Corporation and Westlake Corporation over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

OLN - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Olin Corporation reported a gross profit of 0.00 and revenue of 1.67B. Therefore, the gross margin over that period was 0.0%.

WLK - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Westlake Corporation reported a gross profit of -437.00M and revenue of 2.53B. Therefore, the gross margin over that period was -17.3%.

OLN - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Olin Corporation reported an operating income of 300.00K and revenue of 1.67B, resulting in an operating margin of 0.0%.

WLK - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Westlake Corporation reported an operating income of -671.00M and revenue of 2.53B, resulting in an operating margin of -26.5%.

OLN - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Olin Corporation reported a net income of -85.70M and revenue of 1.67B, resulting in a net margin of -5.2%.

WLK - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Westlake Corporation reported a net income of -544.00M and revenue of 2.53B, resulting in a net margin of -21.5%.