IRTC vs. FIX
IRTC (iRhythm Technologies, Inc.) and FIX (Comfort Systems USA, Inc.) are both stocks. IRTC operates in Medical Devices (Healthcare), while FIX operates in Engineering & Construction (Industrials). Over the past 5 years, IRTC returned 11.29%/yr vs 86.55%/yr for FIX. At a 0.25 correlation, their price movements are largely independent.
Performance
IRTC vs. FIX - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, IRTC achieves a -40.54% return, which is significantly lower than FIX's 101.97% return.
IRTC
- 1D
- -3.36%
- 1M
- -12.67%
- YTD
- -40.54%
- 6M
- -41.99%
- 1Y
- -24.99%
- 3Y*
- -0.05%
- 5Y*
- 11.29%
- 10Y*
- —
FIX
- 1D
- 5.33%
- 1M
- 0.91%
- YTD
- 101.97%
- 6M
- 101.43%
- 1Y
- 295.63%
- 3Y*
- 130.76%
- 5Y*
- 86.55%
- 10Y*
- 51.15%
IRTC vs. FIX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
IRTC iRhythm Technologies, Inc. | -40.54% | 96.78% | -15.76% | 14.27% | -20.41% | -50.39% | 248.38% | -2.00% | 23.96% | 86.83% |
FIX Comfort Systems USA, Inc. | 101.97% | 120.86% | 106.89% | 79.62% | 16.98% | 88.98% | 6.73% | 15.07% | 0.73% | 32.13% |
Correlation
The correlation between IRTC and FIX is 0.20, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.20 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.26 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.29 |
Correlation (All Time) Calculated using the full available price history since Oct 21, 2016 | 0.25 |
Fundamentals
IRTC:
$3.43B
FIX:
$66.39B
IRTC:
-$0.85
FIX:
$34.64
IRTC:
4.35
FIX:
6.56
IRTC:
21.27
FIX:
23.58
IRTC:
$787.85M
FIX:
$10.14B
IRTC:
$559.39M
FIX:
$2.55B
IRTC:
-$3.10M
FIX:
$1.70B
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
IRTC vs. FIX — Risk / Return Rank
IRTC
FIX
IRTC vs. FIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iRhythm Technologies, Inc. (IRTC) and Comfort Systems USA, Inc. (FIX). 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.
| IRTC | FIX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | -0.59 | 5.60 | -6.19 |
Sortino ratioReturn per unit of downside risk | -0.69 | 5.23 | -5.92 |
Omega ratioGain probability vs. loss probability | 0.92 | 1.71 | -0.78 |
Calmar ratioReturn relative to maximum drawdown | -0.56 | 21.40 | -21.96 |
Martin ratioReturn relative to average drawdown | -1.20 | 68.16 | -69.36 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
Loading charts...
Sharpe Ratios by Period
| IRTC | FIX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | -0.59 | 5.60 | -6.19 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.18 | 1.96 | -1.78 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | — | 1.21 | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.25 | 0.40 | -0.15 |
Drawdowns
IRTC vs. FIX - Drawdown Comparison
The maximum IRTC drawdown since its inception was -84.39%, smaller than the maximum FIX drawdown of -93.36%. Use the drawdown chart below to compare losses from any high point for IRTC and FIX.
Loading charts...
Drawdown Indicators
| IRTC | FIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -84.39% | -93.36% | +8.97% |
Max Drawdown (1Y)Largest decline over 1 year | -44.25% | -13.77% | -30.48% |
Max Drawdown (3Y)Largest decline over 3 years | -53.83% | -46.05% | -7.78% |
Max Drawdown (5Y)Largest decline over 5 years | -66.03% | -46.05% | -19.98% |
Max Drawdown (10Y)Largest decline over 10 years | — | -49.68% | — |
Current DrawdownCurrent decline from peak | -60.70% | -7.75% | -52.95% |
Average DrawdownAverage peak-to-trough decline | -37.04% | -38.10% | +1.06% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 20.80% | 4.32% | +16.48% |
Volatility
IRTC vs. FIX - Volatility Comparison
iRhythm Technologies, Inc. (IRTC) and Comfort Systems USA, Inc. (FIX) have volatilities of 12.23% and 12.85%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| IRTC | FIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 12.23% | 12.85% | -0.62% |
Volatility (6M)Calculated over the trailing 6-month period | 31.50% | 37.41% | -5.91% |
Volatility (1Y)Calculated over the trailing 1-year period | 42.42% | 53.20% | -10.78% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 63.40% | 44.44% | +18.96% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 61.79% | 42.33% | +19.46% |
Dividends
IRTC vs. FIX - Dividend Comparison
IRTC has not paid dividends to shareholders, while FIX's dividend yield for the trailing twelve months is around 0.14%.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
FIX Comfort Systems USA, Inc. | 0.14% | 0.21% | 0.28% | 0.41% | 0.49% | 0.49% | 0.81% | 0.79% | 0.76% | 0.68% | 0.83% | 0.88% |
IRTC iRhythm Technologies, 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
IRTC vs. FIX - Financials Comparison
This section allows you to compare key financial metrics between iRhythm Technologies, Inc. and Comfort Systems USA, 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
IRTC vs. FIX - Profitability Comparison
IRTC - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, iRhythm Technologies, Inc. reported a gross profit of 141.35M and revenue of 199.39M. Therefore, the gross margin over that period was 70.9%.
FIX - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Comfort Systems USA, Inc. reported a gross profit of 754.41M and revenue of 2.87B. Therefore, the gross margin over that period was 26.3%.
IRTC - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, iRhythm Technologies, Inc. reported an operating income of -16.19M and revenue of 199.39M, resulting in an operating margin of -8.1%.
FIX - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Comfort Systems USA, Inc. reported an operating income of 485.72M and revenue of 2.87B, resulting in an operating margin of 17.0%.
IRTC - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, iRhythm Technologies, Inc. reported a net income of -13.93M and revenue of 199.39M, resulting in a net margin of -7.0%.
FIX - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Comfort Systems USA, Inc. reported a net income of 370.38M and revenue of 2.87B, resulting in a net margin of 12.9%.
Frequently Asked Questions
IRTC and FIX have a correlation of 0.20, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
FIX has higher volatility (12.85%) compared to IRTC (12.23%). In terms of maximum drawdown, IRTC dropped -84.39% vs FIX's -93.36%.
FIX currently has the higher Sharpe Ratio (5.60 vs -0.59), 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.
Find the right allocation for IRTC and FIX
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer