IBGC vs. VTG

Last updated Jul 1, 2026

IBGC (iShares iBonds Dec 2046 Term Treasury ETF) and VTG (Vanguard Total Treasury ETF) are both Government Bonds funds - IBGC tracks the ICE 2046 Maturity US Treasury Index while VTG tracks the Bloomberg U.S. Treasury Total Return Unhedged USD Index. Both are passively managed. Their correlation of 0.92 suggests significant overlap in exposure. IBGC charges 0.07%/yr vs 0.03%/yr for VTG.

Performance

IBGC vs. VTG - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares iBonds Dec 2046 Term Treasury ETF (IBGC) and Vanguard Total Treasury ETF (VTG). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

IBGC

• 1D: -1.12%
• 1M: 1.15%
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

VTG

• 1D: -0.42%
• 1M: 0.30%
• YTD: 0.37%
• 6M: 0.18%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

IBGC vs. VTG - Yearly Performance Comparison

	2026 (YTD)
IBGC iShares iBonds Dec 2046 Term Treasury ETF	1.88%
VTG Vanguard Total Treasury ETF	0.47%

Correlation

The correlation between IBGC and VTG is 0.92, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (All Time) Calculated using the full available price history since Mar 26, 2026	0.92

Return for Risk

IBGC vs. VTG - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares iBonds Dec 2046 Term Treasury ETF (IBGC) and Vanguard Total Treasury ETF (VTG). 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.

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

Drawdowns

IBGC vs. VTG - Drawdown Comparison

The maximum IBGC drawdown since its inception was -4.29%, which is greater than VTG's maximum drawdown of -2.89%. Use the drawdown chart below to compare losses from any high point for IBGC and VTG.

Drawdown Indicators

	IBGC	VTG	Difference
Max Drawdown Largest peak-to-trough decline	-4.29%	-2.89%	-1.40%
Current Drawdown Current decline from peak	-1.12%	-1.43%	+0.31%
Average Drawdown Average peak-to-trough decline	-1.13%	-0.80%	-0.33%

Volatility

Volatility by Period

	IBGC	VTG	Difference
Volatility (1Y) Calculated over the trailing 1-year period	8.61%	3.54%	+5.07%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	8.61%	3.54%	+5.07%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	8.61%	3.54%	+5.07%

IBGC vs. VTG - Expense Ratio Comparison

IBGC has a 0.07% expense ratio, which is higher than VTG's 0.03% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

IBGC vs. VTG - Dividend Comparison

IBGC's dividend yield for the trailing twelve months is around 0.80%, less than VTG's 3.19% yield.

Position	TTM	2025
IBGC iShares iBonds Dec 2046 Term Treasury ETF	0.80%	0.00%
VTG Vanguard Total Treasury ETF	3.19%	1.65%

Frequently Asked Questions

Can I hold both IBGC and VTG in my portfolio?

With a correlation of 0.92, IBGC and VTG move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which ETF is better, IBGC or VTG?

On fees, VTG is cheaper at 0.03% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, IBGC or VTG?

VTG is cheaper with a 0.03% expense ratio, compared with 0.07% for IBGC.

Which ETF pays a higher dividend yield, IBGC or VTG?

VTG has the higher dividend yield at 3.19%, compared with 0.80% for IBGC.

What is the main difference between IBGC and VTG?

IBGC tracks ICE 2046 Maturity US Treasury Index, while VTG tracks Bloomberg U.S. Treasury Total Return Unhedged USD Index. They also come from different issuers: iShares and Vanguard. Their fees differ too: 0.07% for IBGC and 0.03% for VTG.