SIZE vs. TLT

Last updated Apr 2, 2026

Compare and contrast key facts about iShares MSCI USA Size Factor ETF (SIZE) and iShares 20+ Year Treasury Bond ETF (TLT).

SIZE and TLT are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. SIZE is a passively managed fund by iShares that tracks the performance of the MSCI USA Low Size Index. It was launched on Apr 16, 2013. TLT is a passively managed fund by iShares that tracks the performance of the ICE U.S. Treasury 20+ Year Bond Index. It was launched on Jul 22, 2002. Both SIZE and TLT are passive ETFs, meaning that they are not actively managed but aim to replicate the performance of the underlying index as closely as possible.

Performance

SIZE vs. TLT - Performance Comparison

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

SIZE vs. TLT - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SIZE iShares MSCI USA Size Factor ETF	-0.74%	10.51%	14.37%	17.78%	-15.86%	25.05%	16.26%	28.97%	-6.59%	18.76%
TLT iShares 20+ Year Treasury Bond ETF	0.07%	4.25%	-8.05%	2.77%	-31.23%	-4.60%	18.15%	14.12%	-1.61%	9.18%

Returns By Period

In the year-to-date period, SIZE achieves a -0.74% return, which is significantly lower than TLT's 0.07% return. Over the past 10 years, SIZE has outperformed TLT with an annualized return of 10.98%, while TLT has yielded a comparatively lower -1.39% annualized return.

SIZE

• 1D: 0.22%
• 1M: -5.19%
• YTD: -0.74%
• 6M: 0.04%
• 1Y: 11.52%
• 3Y*: 12.40%
• 5Y*: 7.26%
• 10Y*: 10.98%

TLT

• 1D: -0.10%
• 1M: -3.35%
• YTD: 0.07%
• 6M: -1.23%
• 1Y: -1.44%
• 3Y*: -2.81%
• 5Y*: -5.87%
• 10Y*: -1.39%

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

SIZE vs. TLT - Expense Ratio Comparison

Both SIZE and TLT have an expense ratio of 0.15%, making them cost-effective options compared to the broader market, where average expense ratios typically range from 0.3% to 0.9%.

SIZE

iShares MSCI USA Size Factor ETF

TLT

iShares 20+ Year Treasury Bond ETF

Return for Risk

SIZE vs. TLT — Risk / Return Rank

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

SIZE

SIZE Risk / Return Rank: 34
SIZE Sharpe Ratio Rank: 31
SIZE Sortino Ratio Rank: 32
SIZE Omega Ratio Rank: 33
SIZE Calmar Ratio Rank: 34
SIZE Martin Ratio Rank: 42

TLT

TLT Risk / Return Rank: 9
TLT Sharpe Ratio Rank: 9
TLT Sortino Ratio Rank: 8
TLT Omega Ratio Rank: 8
TLT Calmar Ratio Rank: 11
TLT Martin Ratio Rank: 11

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.

SIZE vs. TLT - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares MSCI USA Size Factor ETF (SIZE) 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.

	SIZE	TLT	Difference
Sharpe ratio Return per unit of total volatility	0.61	-0.13	+0.74
Sortino ratio Return per unit of downside risk	1.01	-0.10	+1.10
Omega ratio Gain probability vs. loss probability	1.14	0.99	+0.15
Calmar ratio Return relative to maximum drawdown	0.91	-0.06	+0.97
Martin ratio Return relative to average drawdown	4.16	-0.13	+4.29
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SIZE vs. TLT - Sharpe Ratio Comparison

The current SIZE Sharpe Ratio is 0.61, which is higher than the TLT Sharpe Ratio of -0.13. The chart below compares the historical Sharpe Ratios of SIZE and TLT, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	SIZE	TLT	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.61	-0.13	+0.74
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.42	-0.37	+0.79
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.59	-0.09	+0.68
Sharpe Ratio (All Time) Calculated using the full available price history	0.65	0.26	+0.39

Correlation

The correlation between SIZE and TLT is -0.11. This indicates that the assets' prices tend to move in opposite directions. Negative correlation can be particularly beneficial for diversification and risk management, as one asset may offset the losses of the other during market fluctuations.

Dividends

SIZE vs. TLT - Dividend Comparison

SIZE's dividend yield for the trailing twelve months is around 1.56%, less than TLT's 4.53% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
SIZE iShares MSCI USA Size Factor ETF	1.56%	1.50%	1.53%	1.42%	1.59%	1.19%	1.43%	1.35%	2.43%	1.58%	1.88%	1.95%
TLT iShares 20+ Year Treasury Bond ETF	4.53%	4.43%	4.30%	3.38%	2.67%	1.50%	1.50%	2.27%	2.63%	2.43%	2.60%	2.61%

Drawdowns

SIZE vs. TLT - Drawdown Comparison

The maximum SIZE drawdown since its inception was -39.15%, smaller than the maximum TLT drawdown of -48.35%. Use the drawdown chart below to compare losses from any high point for SIZE and TLT.

Drawdown Indicators

	SIZE	TLT	Difference
Max Drawdown Largest peak-to-trough decline	-39.15%	-48.35%	+9.20%
Max Drawdown (1Y) Largest decline over 1 year	-12.78%	-9.23%	-3.55%
Max Drawdown (5Y) Largest decline over 5 years	-24.03%	-43.70%	+19.67%
Max Drawdown (10Y) Largest decline over 10 years	-39.15%	-48.35%	+9.20%
Current Drawdown Current decline from peak	-5.38%	-40.23%	+34.85%
Average Drawdown Average peak-to-trough decline	-4.23%	-13.62%	+9.39%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.79%	4.39%	-1.60%

Volatility

SIZE vs. TLT - Volatility Comparison

iShares MSCI USA Size Factor ETF (SIZE) has a higher volatility of 5.05% compared to iShares 20+ Year Treasury Bond ETF (TLT) at 3.71%. This indicates that SIZE's price experiences larger fluctuations and is considered to be riskier than TLT based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SIZE	TLT	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.05%	3.71%	+1.34%
Volatility (6M) Calculated over the trailing 6-month period	9.89%	6.61%	+3.28%
Volatility (1Y) Calculated over the trailing 1-year period	18.90%	11.40%	+7.50%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.38%	15.88%	+1.50%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.66%	14.93%	+3.73%