OSIS vs. APH

Last updated Jun 3, 2026

OSIS (OSI Systems, Inc.) and APH (Amphenol Corporation) are both stocks. Both operate in the Electronic Components industry within the Technology sector. Over the past 10 years, OSIS returned 15.02%/yr vs 27.16%/yr for APH. At a 0.34 correlation, their price movements are largely independent.

Performance

OSIS vs. APH - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in OSI Systems, Inc. (OSIS) and Amphenol Corporation (APH). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, OSIS achieves a -16.88% return, which is significantly lower than APH's 10.03% return. Over the past 10 years, OSIS has underperformed APH with an annualized return of 15.02%, while APH has yielded a comparatively higher 27.16% annualized return.

OSIS

• 1D: -0.64%
• 1M: -24.95%
• YTD: -16.88%
• 6M: -20.35%
• 1Y: -2.52%
• 3Y*: 20.39%
• 5Y*: 16.90%
• 10Y*: 15.02%

APH

• 1D: 1.41%
• 1M: 4.29%
• YTD: 10.03%
• 6M: 5.29%
• 1Y: 65.39%
• 3Y*: 57.73%
• 5Y*: 35.57%
• 10Y*: 27.16%

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

OSIS vs. APH - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
OSIS OSI Systems, Inc.	-16.88%	52.34%	29.74%	62.29%	-14.68%	-0.02%	-7.46%	37.44%	13.86%	-15.42%
APH Amphenol Corporation	10.03%	96.08%	41.30%	31.85%	-11.96%	35.25%	22.09%	34.91%	-6.82%	31.81%

Correlation

The correlation between OSIS and APH is 0.29, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.29
Correlation (3Y) Calculated over the trailing 3-year period	0.38
Correlation (5Y) Calculated over the trailing 5-year period	0.43
Correlation (10Y) Calculated over the trailing 10-year period	0.44
Correlation (All Time) Calculated using the full available price history since Oct 3, 1997	0.34

The correlation between OSIS and APH shifts across timeframes, from 0.29 (1 year) to 0.44 (10 years), reflecting how their relationship changes across market environments.

Fundamentals

Market Cap OSIS : $3.69B APH : $191.39B
EPS OSIS : $8.73 APH : $4.58
PE Ratio OSIS : 24.29 APH : 32.37
PEG Ratio OSIS : 0.98 APH : 1.08
PS Ratio OSIS : 2.05 APH : 7.35
PB Ratio OSIS : 4.13 APH : 13.69
Total Revenue (TTM) OSIS : $1.81B APH : $25.90B
Gross Profit (TTM) OSIS : $593.38M APH : $9.67B
EBITDA (TTM) OSIS : $184.81M APH : $7.45B

Return for Risk

OSIS vs. APH — Risk / Return Rank

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

OSIS

OSIS Risk / Return Rank: 36
OSIS Sharpe Ratio Rank: 37
OSIS Sortino Ratio Rank: 35
OSIS Omega Ratio Rank: 35
OSIS Calmar Ratio Rank: 37
OSIS Martin Ratio Rank: 34

APH

APH Risk / Return Rank: 78
APH Sharpe Ratio Rank: 83
APH Sortino Ratio Rank: 75
APH Omega Ratio Rank: 78
APH Calmar Ratio Rank: 77
APH Martin Ratio Rank: 78

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.

OSIS vs. APH - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for OSI Systems, Inc. (OSIS) and Amphenol Corporation (APH). 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.

	OSIS	APH	Difference
Sharpe ratio Return per unit of total volatility	-0.06	1.63	-1.69
Sortino ratio Return per unit of downside risk	0.22	2.05	-1.82
Omega ratio Gain probability vs. loss probability	1.03	1.29	-0.26
Calmar ratio Return relative to maximum drawdown	-0.10	2.35	-2.44
Martin ratio Return relative to average drawdown	-0.32	6.16	-6.48
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

OSIS vs. APH - Sharpe Ratio Comparison

The current OSIS Sharpe Ratio is -0.06, which is lower than the APH Sharpe Ratio of 1.63. The chart below compares the historical Sharpe Ratios of OSIS and APH, 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

	OSIS	APH	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.06	1.63	-1.69
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.51	1.18	-0.66
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.45	0.98	-0.53
Sharpe Ratio (All Time) Calculated using the full available price history	0.16	0.63	-0.47

Drawdowns

OSIS vs. APH - Drawdown Comparison

The maximum OSIS drawdown since its inception was -88.44%, which is greater than APH's maximum drawdown of -63.41%. Use the drawdown chart below to compare losses from any high point for OSIS and APH.

Drawdown Indicators

	OSIS	APH	Difference
Max Drawdown Largest peak-to-trough decline	-88.44%	-63.41%	-25.03%
Max Drawdown (1Y) Largest decline over 1 year	-33.67%	-28.19%	-5.48%
Max Drawdown (3Y) Largest decline over 3 years	-33.67%	-28.19%	-5.48%
Max Drawdown (5Y) Largest decline over 5 years	-33.67%	-28.73%	-4.94%
Max Drawdown (10Y) Largest decline over 10 years	-53.64%	-37.56%	-16.08%
Current Drawdown Current decline from peak	-31.54%	-10.56%	-20.98%
Average Drawdown Average peak-to-trough decline	-25.68%	-13.56%	-12.12%
Ulcer Index Depth and duration of drawdowns from previous peaks	10.19%	10.74%	-0.55%

Volatility

OSIS vs. APH - Volatility Comparison

OSI Systems, Inc. (OSIS) has a higher volatility of 21.53% compared to Amphenol Corporation (APH) at 15.93%. This indicates that OSIS's price experiences larger fluctuations and is considered to be riskier than APH based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	OSIS	APH	Difference
Volatility (1M) Calculated over the trailing 1-month period	21.53%	15.93%	+5.60%
Volatility (6M) Calculated over the trailing 6-month period	33.42%	36.05%	-2.63%
Volatility (1Y) Calculated over the trailing 1-year period	43.29%	40.38%	+2.91%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	33.18%	30.42%	+2.76%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	33.65%	27.75%	+5.90%

Dividends

OSIS vs. APH - Dividend Comparison

OSIS has not paid dividends to shareholders, while APH's dividend yield for the trailing twelve months is around 0.56%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
APH Amphenol Corporation	0.56%	0.55%	0.79%	1.07%	1.06%	0.89%	0.80%	0.89%	1.09%	0.80%	0.86%	1.01%
OSIS OSI Systems, Inc.	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

OSIS vs. APH - Profitability Comparison

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

OSIS - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, OSI Systems, Inc. reported a gross profit of 150.32M and revenue of 453.25M. Therefore, the gross margin over that period was 33.2%.

APH - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Amphenol Corporation reported a gross profit of 2.80B and revenue of 7.62B. Therefore, the gross margin over that period was 36.8%.

OSIS - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, OSI Systems, Inc. reported an operating income of 53.21M and revenue of 453.25M, resulting in an operating margin of 11.7%.

APH - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Amphenol Corporation reported an operating income of 1.83B and revenue of 7.62B, resulting in an operating margin of 24.0%.

OSIS - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, OSI Systems, Inc. reported a net income of 40.22M and revenue of 453.25M, resulting in a net margin of 8.9%.

APH - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Amphenol Corporation reported a net income of 2.35B and revenue of 7.62B, resulting in a net margin of 30.8%.

Frequently Asked Questions

Can I hold both OSIS and APH in my portfolio?

OSIS and APH have a correlation of 0.29, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, OSIS or APH?

OSIS has higher volatility (21.53%) compared to APH (15.93%). In terms of maximum drawdown, OSIS dropped -88.44% vs APH's -63.41%.

Which has better risk-adjusted returns?

APH currently has the higher Sharpe Ratio (1.63 vs -0.06), 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.