ATEC vs. XMMO

Last updated Jun 3, 2026

ATEC (Alphatec Holdings, Inc.) is a stock, while XMMO (Invesco S&P MidCap Momentum ETF) is Momentum fund tracking the S&P MidCap 400 Momentum Index. Over the past 10 years, ATEC returned 11.74%/yr vs 19.66%/yr for XMMO. At a 0.31 correlation, their price movements are largely independent.

Performance

ATEC vs. XMMO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Alphatec Holdings, Inc. (ATEC) and Invesco S&P MidCap Momentum ETF (XMMO). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ATEC achieves a -64.45% return, which is significantly lower than XMMO's 22.96% return. Over the past 10 years, ATEC has underperformed XMMO with an annualized return of 11.74%, while XMMO has yielded a comparatively higher 19.66% annualized return.

ATEC

• 1D: 0.00%
• 1M: -28.28%
• YTD: -64.45%
• 6M: -64.67%
• 1Y: -39.19%
• 3Y*: -21.32%
• 5Y*: -11.81%
• 10Y*: 11.74%

XMMO

• 1D: 2.16%
• 1M: 6.07%
• YTD: 22.96%
• 6M: 24.84%
• 1Y: 37.37%
• 3Y*: 31.83%
• 5Y*: 16.81%
• 10Y*: 19.66%

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

ATEC vs. XMMO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
ATEC Alphatec Holdings, Inc.	-64.45%	129.19%	-39.25%	22.35%	8.05%	-21.28%	104.65%	209.83%	-13.91%	-17.13%
XMMO Invesco S&P MidCap Momentum ETF	22.96%	13.04%	38.03%	20.39%	-16.02%	16.69%	29.17%	36.78%	6.12%	37.18%

Correlation

The correlation between ATEC and XMMO is 0.27, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.27
Correlation (3Y) Calculated over the trailing 3-year period	0.34
Correlation (5Y) Calculated over the trailing 5-year period	0.40
Correlation (10Y) Calculated over the trailing 10-year period	0.32
Correlation (All Time) Calculated using the full available price history since Jun 5, 2006	0.31

The correlation between ATEC and XMMO shifts across timeframes, from 0.27 (1 year) to 0.40 (5 years), reflecting how their relationship changes across market environments.

Return for Risk

ATEC vs. XMMO — Risk / Return Rank

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

ATEC

ATEC Risk / Return Rank: 17
ATEC Sharpe Ratio Rank: 16
ATEC Sortino Ratio Rank: 19
ATEC Omega Ratio Rank: 18
ATEC Calmar Ratio Rank: 20
ATEC Martin Ratio Rank: 11

XMMO

XMMO Risk / Return Rank: 69
XMMO Sharpe Ratio Rank: 59
XMMO Sortino Ratio Rank: 59
XMMO Omega Ratio Rank: 56
XMMO Calmar Ratio Rank: 84
XMMO Martin Ratio Rank: 86

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.

ATEC vs. XMMO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Alphatec Holdings, Inc. (ATEC) and Invesco S&P MidCap Momentum ETF (XMMO). 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.

	ATEC	XMMO	Difference
Sharpe ratio Return per unit of total volatility	-0.56	2.01	-2.57
Sortino ratio Return per unit of downside risk	-0.49	2.80	-3.29
Omega ratio Gain probability vs. loss probability	0.93	1.35	-0.42
Calmar ratio Return relative to maximum drawdown	-0.58	4.53	-5.11
Martin ratio Return relative to average drawdown	-1.26	18.56	-19.82
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ATEC vs. XMMO - Sharpe Ratio Comparison

The current ATEC Sharpe Ratio is -0.56, which is lower than the XMMO Sharpe Ratio of 2.01. The chart below compares the historical Sharpe Ratios of ATEC and XMMO, 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

	ATEC	XMMO	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.56	2.01	-2.57
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.19	0.79	-0.98
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.17	0.89	-0.72
Sharpe Ratio (All Time) Calculated using the full available price history	-0.17	0.57	-0.75

Drawdowns

ATEC vs. XMMO - Drawdown Comparison

The maximum ATEC drawdown since its inception was -98.90%, which is greater than XMMO's maximum drawdown of -55.37%. Use the drawdown chart below to compare losses from any high point for ATEC and XMMO.

Drawdown Indicators

	ATEC	XMMO	Difference
Max Drawdown Largest peak-to-trough decline	-98.90%	-55.37%	-43.53%
Max Drawdown (1Y) Largest decline over 1 year	-69.18%	-8.34%	-60.84%
Max Drawdown (3Y) Largest decline over 3 years	-73.51%	-24.93%	-48.58%
Max Drawdown (5Y) Largest decline over 5 years	-73.51%	-27.91%	-45.60%
Max Drawdown (10Y) Largest decline over 10 years	-87.34%	-36.74%	-50.60%
Current Drawdown Current decline from peak	-93.06%	0.00%	-93.06%
Average Drawdown Average peak-to-trough decline	-80.44%	-9.45%	-70.99%
Ulcer Index Depth and duration of drawdowns from previous peaks	31.57%	2.04%	+29.53%

Volatility

ATEC vs. XMMO - Volatility Comparison

Alphatec Holdings, Inc. (ATEC) has a higher volatility of 42.80% compared to Invesco S&P MidCap Momentum ETF (XMMO) at 7.82%. This indicates that ATEC's price experiences larger fluctuations and is considered to be riskier than XMMO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ATEC	XMMO	Difference
Volatility (1M) Calculated over the trailing 1-month period	42.80%	7.82%	+34.98%
Volatility (6M) Calculated over the trailing 6-month period	59.18%	15.59%	+43.59%
Volatility (1Y) Calculated over the trailing 1-year period	69.82%	18.71%	+51.11%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	63.07%	21.45%	+41.62%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	69.18%	22.27%	+46.91%

Dividends

ATEC vs. XMMO - Dividend Comparison

ATEC has not paid dividends to shareholders, while XMMO's dividend yield for the trailing twelve months is around 0.61%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ATEC Alphatec Holdings, 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%
XMMO Invesco S&P MidCap Momentum ETF	0.61%	0.78%	0.34%	0.80%	1.43%	0.41%	0.61%	0.60%	0.19%	0.21%	0.22%	0.64%

Frequently Asked Questions

Can I hold both ATEC and XMMO in my portfolio?

ATEC and XMMO have a correlation of 0.27, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ATEC or XMMO?

ATEC has higher volatility (42.80%) compared to XMMO (7.82%). In terms of maximum drawdown, ATEC dropped -98.90% vs XMMO's -55.37%.

Which has better risk-adjusted returns?

XMMO currently has the higher Sharpe Ratio (2.01 vs -0.56), 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.