BUG vs. PSI

Last updated Jul 15, 2026

BUG (Global X Cybersecurity ETF) and PSI (Invesco Semiconductors ETF) are both exchange-traded funds - BUG is a Technology Equities fund tracking the Indxx Cybersecurity Index, while PSI is a Semiconductors fund tracking the Dynamic Semiconductors Intellidex Index. Both are passively managed. Over the past 5 years, BUG returned 8.31%/yr vs 31.77%/yr for PSI. A 0.57 correlation means they provide meaningful diversification when combined. BUG charges 0.50%/yr vs 0.56%/yr for PSI.

Performance

BUG vs. PSI - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Global X Cybersecurity ETF (BUG) and Invesco Semiconductors ETF (PSI). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BUG achieves a 37.85% return, which is significantly lower than PSI's 100.25% return.

BUG

• 1D: 5.93%
• 1M: 23.10%
• 6M: 37.67%
• YTD: 37.85%
• 1Y: 19.40%
• 3Y*: 20.63%
• 5Y*: 8.31%
• 10Y*: —

PSI

• 1D: 4.10%
• 1M: -5.94%
• 6M: 76.13%
• YTD: 100.25%
• 1Y: 157.81%
• 3Y*: 50.80%
• 5Y*: 31.77%
• 10Y*: 33.22%

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

BUG vs. PSI - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
BUG Global X Cybersecurity ETF	37.85%	-5.04%	9.59%	41.40%	-33.63%	13.24%	70.83%	6.21%
PSI Invesco Semiconductors ETF	100.25%	36.32%	17.17%	49.06%	-34.43%	46.55%	56.75%	9.08%

Correlation

The correlation between BUG and PSI is 0.25, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.25
Correlation (3Y) Calculated over the trailing 3-year period	0.45
Correlation (5Y) Calculated over the trailing 5-year period	0.55
Correlation (All Time) Calculated using the full available price history since Oct 31, 2019	0.57

Over the past year, the correlation between BUG and PSI has dropped to 0.25 - well below their long-term average of 0.57, suggesting their price drivers have been diverging.

BUG vs. PSI - Sectors Allocation Comparison

Sectors	BUG	PSI
Technology	100.0%	98.4%
Communication Services	0.0%	-
Consumer Cyclical	0.0%	-
Consumer Defensive	0.0%	-
Healthcare	0.0%	-
Basic Materials	-	-
Energy	-	-
Financial Services	-	-
Industrials	-	1.6%
Real Estate	-	-
Utilities	-	-

Return for Risk

BUG vs. PSI — Risk / Return Rank

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

BUG

BUG Risk / Return Rank: 20
BUG Sharpe Ratio Rank: 21
BUG Sortino Ratio Rank: 22
BUG Omega Ratio Rank: 22
BUG Calmar Ratio Rank: 17
BUG Martin Ratio Rank: 16

PSI

PSI Risk / Return Rank: 94
PSI Sharpe Ratio Rank: 97
PSI Sortino Ratio Rank: 91
PSI Omega Ratio Rank: 91
PSI Calmar Ratio Rank: 96
PSI Martin Ratio Rank: 96

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.

BUG vs. PSI - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Global X Cybersecurity ETF (BUG) and Invesco Semiconductors ETF (PSI). 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.

	BUG	PSI	Difference
Sharpe ratio: Return per unit of total volatility	0.60	3.43	-2.83
Sortino ratio: Return per unit of downside risk	1.02	3.39	-2.37
Omega ratio: Gain probability vs. loss probability	1.13	1.47	-0.34
Calmar ratio: Return relative to maximum drawdown	0.55	7.55	-7.00
Martin ratio: Return relative to average drawdown	1.21	28.90	-27.69

BUG vs. PSI - Sharpe Ratio Comparison

The current BUG Sharpe Ratio is 0.60, which is lower than the PSI Sharpe Ratio of 3.43. The chart below compares the historical Sharpe Ratios of BUG and PSI, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

BUG vs. PSI - Drawdown Comparison

The maximum BUG drawdown since its inception was -41.66%, smaller than the maximum PSI drawdown of -62.96%. Use the drawdown chart below to compare losses from any high point for BUG and PSI.

Drawdown Indicators

	BUG	PSI	Difference
Max Drawdown Largest peak-to-trough decline	-41.66%	-62.96%	+21.30%
Max Drawdown (1Y) Largest decline over 1 year	-35.16%	-21.02%	-14.14%
Max Drawdown (3Y) Largest decline over 3 years	-37.69%	-41.07%	+3.38%
Max Drawdown (5Y) Largest decline over 5 years	-41.66%	-44.85%	+3.19%
Max Drawdown (10Y) Largest decline over 10 years	—	-44.85%	—
Current Drawdown Current decline from peak	0.00%	-15.93%	+15.93%
Average Drawdown Average peak-to-trough decline	-14.29%	-15.89%	+1.60%
Ulcer Index Depth and duration of drawdowns from previous peaks	16.11%	5.48%	+10.63%

Volatility

BUG vs. PSI - Volatility Comparison

The current volatility for Global X Cybersecurity ETF (BUG) is 10.69%, while Invesco Semiconductors ETF (PSI) has a volatility of 24.29%. This indicates that BUG experiences smaller price fluctuations and is considered to be less risky than PSI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BUG	PSI	Difference
Volatility (1M) Calculated over the trailing 1-month period	10.69%	24.29%	-13.60%
Volatility (6M) Calculated over the trailing 6-month period	27.91%	39.79%	-11.88%
Volatility (1Y) Calculated over the trailing 1-year period	32.36%	46.24%	-13.88%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	28.92%	39.75%	-10.83%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	29.48%	36.07%	-6.59%

BUG vs. PSI - Expense Ratio Comparison

BUG has a 0.50% expense ratio, which is lower than PSI's 0.56% expense ratio.

Dividends

BUG vs. PSI - Dividend Comparison

BUG's dividend yield for the trailing twelve months is around 0.03%, which matches PSI's 0.03% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BUG Global X Cybersecurity ETF	0.03%	0.04%	0.09%	0.10%	1.56%	0.66%	0.46%	0.24%	0.00%	0.00%	0.00%	0.00%
PSI Invesco Semiconductors ETF	0.03%	0.10%	0.15%	0.40%	0.61%	0.14%	0.21%	0.52%	0.83%	0.21%	0.68%	0.16%

Frequently Asked Questions

Can I hold both BUG and PSI in my portfolio?

BUG and PSI have a correlation of 0.25, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BUG or PSI?

PSI has higher volatility (24.29%) compared to BUG (10.69%). In terms of maximum drawdown, BUG dropped -41.66% vs PSI's -62.96%.

Which ETF is better, BUG or PSI?

On 5-year performance, PSI leads with 31.77% vs 8.31% for BUG. On fees, BUG is cheaper at 0.50% per year. On volatility, BUG has been the lower-risk option at 10.69%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, BUG or PSI?

Over the 5-year period, PSI has performed better with a 31.77% return vs 8.31%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, BUG or PSI?

BUG is cheaper with a 0.50% expense ratio, compared with 0.56% for PSI.

Which ETF pays a higher dividend yield, BUG or PSI?

BUG and PSI have nearly identical dividend yields, around 0.03%.

What is the main difference between BUG and PSI?

BUG is categorized as Technology Equities, while PSI is Semiconductors. BUG tracks Indxx Cybersecurity Index, while PSI tracks Dynamic Semiconductors Intellidex Index. They also come from different issuers: Global X and Invesco. Their fees differ too: 0.50% for BUG and 0.56% for PSI.

Which has better risk-adjusted returns?

PSI currently has the higher Sharpe Ratio (3.43 vs 0.60), 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.