IOSP vs. SLGN
IOSP (Innospec Inc.) and SLGN (Silgan Holdings Inc.) are both stocks. IOSP operates in Specialty Chemicals (Basic Materials), while SLGN operates in Packaging & Containers (Consumer Cyclical). Over the past 10 years, IOSP returned 7.57%/yr vs 6.81%/yr for SLGN. At a 0.34 correlation, their price movements are largely independent.
Performance
IOSP vs. SLGN - Performance Comparison
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Returns By Period
In the year-to-date period, IOSP achieves a 9.02% return, which is significantly higher than SLGN's 3.82% return. Over the past 10 years, IOSP has outperformed SLGN with an annualized return of 7.57%, while SLGN has yielded a comparatively lower 6.81% annualized return.
IOSP
- 1D
- -0.31%
- 1M
- 3.63%
- YTD
- 9.02%
- 6M
- 7.14%
- 1Y
- 2.32%
- 3Y*
- -3.61%
- 5Y*
- -1.02%
- 10Y*
- 7.57%
SLGN
- 1D
- -0.43%
- 1M
- 10.01%
- YTD
- 3.82%
- 6M
- 2.30%
- 1Y
- -21.57%
- 3Y*
- -1.56%
- 5Y*
- 1.69%
- 10Y*
- 6.81%
IOSP vs. SLGN - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
IOSP Innospec Inc. | 9.02% | -28.94% | -9.57% | 21.46% | 15.25% | 0.77% | -11.00% | 69.43% | -11.48% | 4.30% |
SLGN Silgan Holdings Inc. | 3.82% | -21.11% | 16.80% | -11.33% | 22.68% | 17.06% | 21.06% | 33.55% | -18.44% | 16.08% |
Correlation
The correlation between IOSP and SLGN is 0.50, 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 | 0.50 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.51 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.48 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.44 |
Correlation (All Time) Calculated using the full available price history since May 13, 1998 | 0.34 |
The correlation between IOSP and SLGN shifts across timeframes, from 0.34 (all time) to 0.51 (3 years), reflecting how their relationship changes across market environments.
Fundamentals
IOSP:
$2.05B
SLGN:
$4.39B
IOSP:
$4.58
SLGN:
$2.66
IOSP:
17.99
SLGN:
15.57
IOSP:
1.15
SLGN:
0.67
IOSP:
$1.79B
SLGN:
$6.58B
IOSP:
$490.80M
SLGN:
$1.14B
IOSP:
$162.50M
SLGN:
$842.47M
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Return for Risk
IOSP vs. SLGN — Risk / Return Rank
IOSP
SLGN
IOSP vs. SLGN - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Innospec Inc. (IOSP) and Silgan Holdings Inc. (SLGN). 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.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| IOSP | SLGN | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.76 | ||
| Sortino ratioReturn per unit of downside risk | +1.05 | ||
| Omega ratioGain probability vs. loss probability | 1.04 | 0.89 | +0.15 |
| Calmar ratioReturn relative to maximum drawdown | 0.09 | -0.62 | +0.71 |
| Martin ratioReturn relative to average drawdown | 0.19 | -0.88 | +1.07 |
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Drawdowns
IOSP vs. SLGN - Drawdown Comparison
The maximum IOSP drawdown since its inception was -91.17%, which is greater than SLGN's maximum drawdown of -86.14%. Use the drawdown chart below to compare losses from any high point for IOSP and SLGN.
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Drawdown Indicators
| IOSP | SLGN | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -91.17% | -86.14% | -5.03% |
Max Drawdown (1Y)Largest decline over 1 year | -25.48% | -34.87% | +9.39% |
Max Drawdown (3Y)Largest decline over 3 years | -48.42% | -35.03% | -13.39% |
Max Drawdown (5Y)Largest decline over 5 years | -48.42% | -35.03% | -13.39% |
Max Drawdown (10Y)Largest decline over 10 years | -48.42% | -35.03% | -13.39% |
Current DrawdownCurrent decline from peak | -34.68% | -25.65% | -9.03% |
Average DrawdownAverage peak-to-trough decline | -28.68% | -16.64% | -12.04% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 12.13% | 24.47% | -12.34% |
Volatility
IOSP vs. SLGN - Volatility Comparison
The current volatility for Innospec Inc. (IOSP) is 5.90%, while Silgan Holdings Inc. (SLGN) has a volatility of 7.45%. This indicates that IOSP experiences smaller price fluctuations and is considered to be less risky than SLGN based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| IOSP | SLGN | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 5.90% | 7.45% | -1.55% |
Volatility (6M)Calculated over the trailing 6-month period | 17.31% | 20.89% | -3.58% |
Volatility (1Y)Calculated over the trailing 1-year period | 24.24% | 32.55% | -8.31% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 26.63% | 25.74% | +0.89% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 31.35% | 23.91% | +7.44% |
Dividends
IOSP vs. SLGN - Dividend Comparison
IOSP's dividend yield for the trailing twelve months is around 2.17%, more than SLGN's 1.98% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
IOSP Innospec Inc. | 2.17% | 2.23% | 1.41% | 1.14% | 1.24% | 1.28% | 1.15% | 0.99% | 1.44% | 1.09% | 0.98% | 1.12% |
SLGN Silgan Holdings Inc. | 1.98% | 1.98% | 1.46% | 1.59% | 1.23% | 1.31% | 1.29% | 1.42% | 1.69% | 1.22% | 1.33% | 1.19% |
Financials
IOSP vs. SLGN - Financials Comparison
This section allows you to compare key financial metrics between Innospec Inc. and Silgan Holdings Inc.. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.
Total Revenue: Total amount of money received from sales and other business activities
IOSP vs. SLGN - Profitability Comparison
IOSP - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Innospec Inc. reported a gross profit of 123.50M and revenue of 453.20M. Therefore, the gross margin over that period was 27.3%.
SLGN - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Silgan Holdings Inc. reported a gross profit of 265.80M and revenue of 1.56B. Therefore, the gross margin over that period was 17.0%.
IOSP - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Innospec Inc. reported an operating income of 36.50M and revenue of 453.20M, resulting in an operating margin of 8.1%.
SLGN - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Silgan Holdings Inc. reported an operating income of 134.60M and revenue of 1.56B, resulting in an operating margin of 8.6%.
IOSP - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Innospec Inc. reported a net income of 30.40M and revenue of 453.20M, resulting in a net margin of 6.7%.
SLGN - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Silgan Holdings Inc. reported a net income of 63.00M and revenue of 1.56B, resulting in a net margin of 4.0%.
Frequently Asked Questions
IOSP and SLGN have a correlation of 0.50, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
SLGN has higher volatility (7.45%) compared to IOSP (5.90%). In terms of maximum drawdown, IOSP dropped -91.17% vs SLGN's -86.14%.
IOSP currently has the higher Sharpe Ratio (0.10 vs -0.67), 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.
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