PHGE vs. VEXAX

Last updated Jul 14, 2026

PHGE (BiomX Inc.) is a stock, while VEXAX (Vanguard Extended Market Index Fund Admiral Shares) is Mid Cap Blend Equities fund tracking the S&P Completion Index. Over the past 5 years, PHGE returned -81.38%/yr vs 6.38%/yr for VEXAX. At a 0.14 correlation, their price movements are largely independent.

Performance

PHGE vs. VEXAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in BiomX Inc. (PHGE) and Vanguard Extended Market Index Fund Admiral Shares (VEXAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, PHGE achieves a -87.59% return, which is significantly lower than VEXAX's 16.04% return.

PHGE

• 1D: 0.00%
• 1M: -56.73%
• 6M: -89.69%
• YTD: -87.59%
• 1Y: -97.06%
• 3Y*: -85.44%
• 5Y*: -81.38%
• 10Y*: —

VEXAX

• 1D: -0.56%
• 1M: 1.41%
• 6M: 10.64%
• YTD: 16.04%
• 1Y: 24.54%
• 3Y*: 18.15%
• 5Y*: 6.38%
• 10Y*: 11.98%

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

PHGE vs. VEXAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
PHGE BiomX Inc.	-87.59%	-86.52%	-73.93%	49.97%	-88.33%	-74.92%	-34.12%	1.41%
VEXAX Vanguard Extended Market Index Fund Admiral Shares	16.04%	11.42%	15.47%	26.95%	-26.46%	12.45%	32.22%	10.60%

Correlation

The correlation between PHGE and VEXAX is 0.19, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.19
Correlation (3Y) Calculated over the trailing 3-year period	0.14
Correlation (5Y) Calculated over the trailing 5-year period	0.16
Correlation (All Time) Calculated using the full available price history since Mar 13, 2019	0.14

Return for Risk

PHGE vs. VEXAX — Risk / Return Rank

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

PHGE

PHGE Risk / Return Rank: 10
PHGE Sharpe Ratio Rank: 24
PHGE Sortino Ratio Rank: 8
PHGE Omega Ratio Rank: 11
PHGE Calmar Ratio Rank: 2
PHGE Martin Ratio Rank: 6

VEXAX

VEXAX Risk / Return Rank: 41
VEXAX Sharpe Ratio Rank: 35
VEXAX Sortino Ratio Rank: 35
VEXAX Omega Ratio Rank: 32
VEXAX Calmar Ratio Rank: 54
VEXAX Martin Ratio Rank: 48

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.

PHGE vs. VEXAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for BiomX Inc. (PHGE) and Vanguard Extended Market Index Fund Admiral Shares (VEXAX). 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.

	PHGE	VEXAX	Difference
Sharpe ratio: Return per unit of total volatility	-0.46	1.31	-1.77
Sortino ratio: Return per unit of downside risk	-1.37	1.90	-3.27
Omega ratio: Gain probability vs. loss probability	0.85	1.23	-0.38
Calmar ratio: Return relative to maximum drawdown	-0.99	2.27	-3.26
Martin ratio: Return relative to average drawdown	-1.51	7.96	-9.47

PHGE vs. VEXAX - Sharpe Ratio Comparison

The current PHGE Sharpe Ratio is -0.46, which is lower than the VEXAX Sharpe Ratio of 1.31. The chart below compares the historical Sharpe Ratios of PHGE and VEXAX, 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

PHGE vs. VEXAX - Drawdown Comparison

The maximum PHGE drawdown since its inception was -99.99%, which is greater than VEXAX's maximum drawdown of -58.08%. Use the drawdown chart below to compare losses from any high point for PHGE and VEXAX.

Drawdown Indicators

	PHGE	VEXAX	Difference
Max Drawdown Largest peak-to-trough decline	-99.99%	-58.08%	-41.91%
Max Drawdown (1Y) Largest decline over 1 year	-98.12%	-10.25%	-87.87%
Max Drawdown (3Y) Largest decline over 3 years	-99.82%	-26.84%	-72.98%
Max Drawdown (5Y) Largest decline over 5 years	-99.98%	-36.33%	-63.65%
Max Drawdown (10Y) Largest decline over 10 years	—	-41.62%	—
Current Drawdown Current decline from peak	-99.99%	-1.99%	-98.00%
Average Drawdown Average peak-to-trough decline	-73.15%	-12.14%	-61.01%
Ulcer Index Depth and duration of drawdowns from previous peaks	64.02%	2.93%	+61.09%

Volatility

PHGE vs. VEXAX - Volatility Comparison

BiomX Inc. (PHGE) has a higher volatility of 38.55% compared to Vanguard Extended Market Index Fund Admiral Shares (VEXAX) at 5.16%. This indicates that PHGE's price experiences larger fluctuations and is considered to be riskier than VEXAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PHGE	VEXAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	38.55%	5.16%	+33.39%
Volatility (6M) Calculated over the trailing 6-month period	158.99%	13.26%	+145.73%
Volatility (1Y) Calculated over the trailing 1-year period	210.23%	17.80%	+192.43%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	162.00%	22.45%	+139.55%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	139.21%	22.33%	+116.88%

Dividends

PHGE vs. VEXAX - Dividend Comparison

PHGE has not paid dividends to shareholders, while VEXAX's dividend yield for the trailing twelve months is around 1.01%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
PHGE BiomX 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%
VEXAX Vanguard Extended Market Index Fund Admiral Shares	1.01%	1.14%	1.09%	1.25%	1.15%	1.13%	1.07%	1.30%	1.66%	1.25%	1.43%	1.35%

Frequently Asked Questions

Can I hold both PHGE and VEXAX in my portfolio?

PHGE and VEXAX have a correlation of 0.19, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, PHGE or VEXAX?

PHGE has higher volatility (38.55%) compared to VEXAX (5.16%). In terms of maximum drawdown, PHGE dropped -99.99% vs VEXAX's -58.08%.

Which has better risk-adjusted returns?

VEXAX currently has the higher Sharpe Ratio (1.31 vs -0.46), 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.