ISZE vs. TLT

Last updated Jun 4, 2026

ISZE (iShares Edge MSCI Intl Size Factor ETF) and TLT (iShares 20+ Year Treasury Bond ETF) are both exchange-traded funds - ISZE is a Foreign Large Cap Equities fund tracking the MSCI World ex USA Risk Weighted Index, while TLT is a Government Bonds fund tracking the ICE U.S. Treasury 20+ Year Bond Index. Both are passively managed. At a correlation of -0.06, they often move in opposite directions. ISZE charges 0.30%/yr vs 0.15%/yr for TLT.

Performance

ISZE vs. TLT - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Edge MSCI Intl Size Factor ETF (ISZE) and iShares 20+ Year Treasury Bond ETF (TLT). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

ISZE

• 1D: —
• 1M: —
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

TLT

• 1D: -0.40%
• 1M: 0.81%
• YTD: -0.27%
• 6M: -2.02%
• 1Y: 4.93%
• 3Y*: -1.80%
• 5Y*: -6.31%
• 10Y*: -1.66%

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

ISZE vs. TLT - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
ISZE iShares Edge MSCI Intl Size Factor ETF	0.00%	0.00%	-0.11%	15.54%	-15.70%	8.17%	6.07%	21.17%	-13.91%	25.13%
TLT iShares 20+ Year Treasury Bond ETF	-0.27%	4.25%	-8.05%	2.77%	-31.23%	-4.60%	18.15%	14.12%	-1.61%	9.18%

Correlation

The correlation between ISZE and TLT is -0.06, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (3Y) Calculated over the trailing 3-year period	0.20
Correlation (5Y) Calculated over the trailing 5-year period	0.09
Correlation (10Y) Calculated over the trailing 10-year period	-0.06
Correlation (All Time) Calculated using the full available price history since Jul 8, 2015	-0.06

The correlation between ISZE and TLT shifts across timeframes, from -0.06 (10 years) to 0.20 (3 years), reflecting how their relationship changes across market environments.

Return for Risk

ISZE vs. TLT — Risk / Return Rank

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

TLT

TLT Risk / Return Rank: 16
TLT Sharpe Ratio Rank: 16
TLT Sortino Ratio Rank: 15
TLT Omega Ratio Rank: 15
TLT Calmar Ratio Rank: 17
TLT Martin Ratio Rank: 16

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.

ISZE vs. TLT - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Edge MSCI Intl Size Factor ETF (ISZE) and iShares 20+ Year Treasury Bond ETF (TLT). 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.

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

Sharpe Ratios by Period

	ISZE	TLT	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	0.51	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	-0.40	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	-0.11	—
Sharpe Ratio (All Time) Calculated using the full available price history	—	0.26	—

Drawdowns

Drawdown Indicators

	ISZE	TLT	Difference
Max Drawdown Largest peak-to-trough decline	—	-48.35%	—
Max Drawdown (1Y) Largest decline over 1 year	—	-7.58%	—
Max Drawdown (3Y) Largest decline over 3 years	—	-19.18%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-43.70%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-48.35%	—
Current Drawdown Current decline from peak	—	-40.44%	—
Average Drawdown Average peak-to-trough decline	—	-13.82%	—
Ulcer Index Depth and duration of drawdowns from previous peaks	—	3.04%	—

Volatility

Volatility by Period

	ISZE	TLT	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	2.76%	—
Volatility (6M) Calculated over the trailing 6-month period	—	6.50%	—
Volatility (1Y) Calculated over the trailing 1-year period	—	9.77%	—
Volatility (5Y) Calculated over the trailing 5-year period, annualized	—	15.87%	—
Volatility (10Y) Calculated over the trailing 10-year period, annualized	—	14.91%	—

ISZE vs. TLT - Expense Ratio Comparison

ISZE has a 0.30% expense ratio, which is higher than TLT's 0.15% expense ratio.

Dividends

ISZE vs. TLT - Dividend Comparison

ISZE has not paid dividends to shareholders, while TLT's dividend yield for the trailing twelve months is around 4.59%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ISZE iShares Edge MSCI Intl Size Factor ETF	0.00%	0.00%	1.89%	6.63%	2.72%	8.47%	1.39%	2.24%	3.04%	3.33%	3.18%	1.09%
TLT iShares 20+ Year Treasury Bond ETF	4.59%	4.43%	4.30%	3.38%	2.67%	1.50%	1.50%	2.27%	2.63%	2.43%	2.60%	2.61%

Frequently Asked Questions

Can I hold both ISZE and TLT in my portfolio?

ISZE and TLT have a correlation of -0.06, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, ISZE or TLT?

On fees, TLT is cheaper at 0.15% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, ISZE or TLT?

TLT is cheaper with a 0.15% expense ratio, compared with 0.30% for ISZE.

Which ETF pays a higher dividend yield, ISZE or TLT?

TLT has the higher dividend yield at 4.59%, compared with 0.00% for ISZE.

What is the main difference between ISZE and TLT?

ISZE is categorized as Foreign Large Cap Equities, while TLT is Government Bonds. ISZE tracks MSCI World ex USA Risk Weighted Index, while TLT tracks ICE U.S. Treasury 20+ Year Bond Index. Their fees differ too: 0.30% for ISZE and 0.15% for TLT.