EVF vs. TBIL

Last updated Jun 4, 2026

EVF (Eaton Vance Senior Income Trust) is a stock, while TBIL (US Treasury 3 Month Bill ETF) is Ultrashort Bond fund tracking the ICE BofA US Treasury Bill 3 Month Index. Over the past 3 years, EVF returned 8.04%/yr vs 4.64%/yr for TBIL. At a 0.01 correlation, their price movements are largely independent.

Performance

EVF vs. TBIL - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Eaton Vance Senior Income Trust (EVF) and US Treasury 3 Month Bill ETF (TBIL). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, EVF achieves a -2.18% return, which is significantly lower than TBIL's 1.49% return.

EVF

• 1D: -0.10%
• 1M: 0.75%
• YTD: -2.18%
• 6M: -2.75%
• 1Y: -3.96%
• 3Y*: 8.04%
• 5Y*: 3.14%
• 10Y*: 5.99%

TBIL

• 1D: 0.00%
• 1M: 0.30%
• YTD: 1.49%
• 6M: 1.78%
• 1Y: 3.93%
• 3Y*: 4.64%
• 5Y*: —
• 10Y*: —

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

EVF vs. TBIL - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
EVF Eaton Vance Senior Income Trust	-2.18%	-6.15%	7.31%	34.53%	-4.23%
TBIL US Treasury 3 Month Bill ETF	1.49%	4.19%	5.15%	5.12%	1.30%

Correlation

The correlation between EVF and TBIL is -0.11, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.11
Correlation (3Y) Calculated over the trailing 3-year period	0.01
Correlation (All Time) Calculated using the full available price history since Aug 10, 2022	0.01

The correlation between EVF and TBIL shifts across timeframes, from -0.11 (1 year) to 0.01 (3 years), reflecting how their relationship changes across market environments.

Return for Risk

EVF vs. TBIL — Risk / Return Rank

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

EVF

EVF Risk / Return Rank: 19
EVF Sharpe Ratio Rank: 18
EVF Sortino Ratio Rank: 16
EVF Omega Ratio Rank: 16
EVF Calmar Ratio Rank: 26
EVF Martin Ratio Rank: 20

TBIL

TBIL Risk / Return Rank: 100
TBIL Sharpe Ratio Rank: 100
TBIL Sortino Ratio Rank: 100
TBIL Omega Ratio Rank: 100
TBIL Calmar Ratio Rank: 100
TBIL Martin Ratio Rank: 100

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.

EVF vs. TBIL - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Eaton Vance Senior Income Trust (EVF) and US Treasury 3 Month Bill ETF (TBIL). 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.

	EVF	TBIL	Difference
Sharpe ratio: Return per unit of total volatility	-0.53	13.78	-14.31
Sortino ratio: Return per unit of downside risk	-0.71	58.40	-59.11
Omega ratio: Gain probability vs. loss probability	0.91	17.16	-16.25
Calmar ratio: Return relative to maximum drawdown	-0.42	196.84	-197.26
Martin ratio: Return relative to average drawdown	-1.00	934.41	-935.41
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

EVF vs. TBIL - Sharpe Ratio Comparison

The current EVF Sharpe Ratio is -0.53, which is lower than the TBIL Sharpe Ratio of 13.78. The chart below compares the historical Sharpe Ratios of EVF and TBIL, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	EVF	TBIL	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.53	13.78	-14.31
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.25	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.42	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.26	14.07	-13.81

Drawdowns

EVF vs. TBIL - Drawdown Comparison

The maximum EVF drawdown since its inception was -62.41%, which is greater than TBIL's maximum drawdown of -0.10%. Use the drawdown chart below to compare losses from any high point for EVF and TBIL.

Drawdown Indicators

	EVF	TBIL	Difference
Max Drawdown Largest peak-to-trough decline	-62.41%	-0.10%	-62.31%
Max Drawdown (1Y) Largest decline over 1 year	-9.41%	-0.02%	-9.39%
Max Drawdown (3Y) Largest decline over 3 years	-16.86%	-0.02%	-16.84%
Max Drawdown (5Y) Largest decline over 5 years	-23.76%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-41.01%	—	—
Current Drawdown Current decline from peak	-10.98%	0.00%	-10.98%
Average Drawdown Average peak-to-trough decline	-8.34%	-0.00%	-8.34%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.97%	0.00%	+3.97%

Volatility

EVF vs. TBIL - Volatility Comparison

Eaton Vance Senior Income Trust (EVF) has a higher volatility of 1.35% compared to US Treasury 3 Month Bill ETF (TBIL) at 0.08%. This indicates that EVF's price experiences larger fluctuations and is considered to be riskier than TBIL based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	EVF	TBIL	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.35%	0.08%	+1.27%
Volatility (6M) Calculated over the trailing 6-month period	6.30%	0.19%	+6.11%
Volatility (1Y) Calculated over the trailing 1-year period	7.44%	0.29%	+7.15%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	12.45%	0.32%	+12.13%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	14.19%	0.32%	+13.87%

Dividends

EVF vs. TBIL - Dividend Comparison

EVF's dividend yield for the trailing twelve months is around 9.33%, more than TBIL's 3.82% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
EVF Eaton Vance Senior Income Trust	9.33%	9.58%	10.13%	10.51%	9.45%	5.37%	6.16%	6.58%	6.27%	5.57%	6.06%	7.73%
TBIL US Treasury 3 Month Bill ETF	3.82%	4.07%	5.02%	5.00%	1.10%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both EVF and TBIL in my portfolio?

EVF and TBIL have a correlation of -0.11, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, EVF or TBIL?

EVF has higher volatility (1.35%) compared to TBIL (0.08%). In terms of maximum drawdown, EVF dropped -62.41% vs TBIL's -0.10%.

Which has better risk-adjusted returns?

TBIL currently has the higher Sharpe Ratio (13.78 vs -0.53), 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.