IBTM.L vs. GSPX.L

Last updated Jun 4, 2026

IBTM.L (iShares USD Treasury Bond 7-10yr UCITS ETF (Dist)) and GSPX.L (iShares Core S&P 500 UCITS ETF) are both exchange-traded funds - IBTM.L is a Government Bonds fund tracking the ICE U.S. Treasury 7-10 Year Bond Index, while GSPX.L is a S&P 500 fund tracking the S&P 500 Index. Both are passively managed. Over the past 5 years, IBTM.L returned 0.99%/yr vs 12.57%/yr for GSPX.L. At a correlation of -0.34, they often move in opposite directions. IBTM.L charges 0.07%/yr vs 0.10%/yr for GSPX.L.

Performance

IBTM.L vs. GSPX.L - Performance Comparison

The chart below illustrates the hypothetical performance of a £10,000 investment in iShares USD Treasury Bond 7-10yr UCITS ETF (Dist) (IBTM.L) and iShares Core S&P 500 UCITS ETF (GSPX.L). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, IBTM.L achieves a -0.03% return, which is significantly lower than GSPX.L's 10.08% return.

IBTM.L

• 1D: 0.15%
• 1M: 1.68%
• YTD: -0.03%
• 6M: -0.91%
• 1Y: 6.38%
• 3Y*: 1.26%
• 5Y*: 0.99%
• 10Y*: 2.30%

GSPX.L

• 1D: -0.49%
• 1M: 4.59%
• YTD: 10.08%
• 6M: 10.89%
• 1Y: 27.77%
• 3Y*: 21.56%
• 5Y*: 12.57%
• 10Y*: —

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

IBTM.L vs. GSPX.L - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
IBTM.L iShares USD Treasury Bond 7-10yr UCITS ETF (Dist)	-0.03%	2.28%	2.56%	-1.50%	-4.38%	-1.34%	6.45%	6.25%	6.14%
GSPX.L iShares Core S&P 500 UCITS ETF	10.08%	17.15%	24.63%	24.88%	-20.60%	28.94%	15.10%	27.75%	-8.17%

Correlation

The correlation between IBTM.L and GSPX.L is -0.26, 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	-0.26
Correlation (3Y) Calculated over the trailing 3-year period	-0.19
Correlation (5Y) Calculated over the trailing 5-year period	-0.31
Correlation (All Time) Calculated using the full available price history since Jul 4, 2018	-0.34

The correlation between IBTM.L and GSPX.L shifts across timeframes, from -0.34 (all time) to -0.19 (3 years), reflecting how their relationship changes across market environments.

Return for Risk

IBTM.L vs. GSPX.L — Risk / Return Rank

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

IBTM.L

IBTM.L Risk / Return Rank: 26
IBTM.L Sharpe Ratio Rank: 28
IBTM.L Sortino Ratio Rank: 29
IBTM.L Omega Ratio Rank: 26
IBTM.L Calmar Ratio Rank: 25
IBTM.L Martin Ratio Rank: 22

GSPX.L

GSPX.L Risk / Return Rank: 72
GSPX.L Sharpe Ratio Rank: 72
GSPX.L Sortino Ratio Rank: 76
GSPX.L Omega Ratio Rank: 72
GSPX.L Calmar Ratio Rank: 65
GSPX.L Martin Ratio Rank: 75

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.

IBTM.L vs. GSPX.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares USD Treasury Bond 7-10yr UCITS ETF (Dist) (IBTM.L) and iShares Core S&P 500 UCITS ETF (GSPX.L). 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.

	IBTM.L	GSPX.L	Difference
Sharpe ratio: Return per unit of total volatility	1.03	2.39	-1.36
Sortino ratio: Return per unit of downside risk	1.60	3.45	-1.85
Omega ratio: Gain probability vs. loss probability	1.18	1.44	-0.26
Calmar ratio: Return relative to maximum drawdown	1.17	3.28	-2.11
Martin ratio: Return relative to average drawdown	2.86	14.37	-11.51
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

IBTM.L vs. GSPX.L - Sharpe Ratio Comparison

The current IBTM.L Sharpe Ratio is 1.03, which is lower than the GSPX.L Sharpe Ratio of 2.39. The chart below compares the historical Sharpe Ratios of IBTM.L and GSPX.L, 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

	IBTM.L	GSPX.L	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.03	2.39	-1.36
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.10	0.78	-0.68
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.22	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.57	0.78	-0.21

Drawdowns

IBTM.L vs. GSPX.L - Drawdown Comparison

The maximum IBTM.L drawdown since its inception was -25.39%, smaller than the maximum GSPX.L drawdown of -34.88%. Use the drawdown chart below to compare losses from any high point for IBTM.L and GSPX.L.

Drawdown Indicators

	IBTM.L	GSPX.L	Difference
Max Drawdown Largest peak-to-trough decline	-25.39%	-34.88%	+9.49%
Max Drawdown (1Y) Largest decline over 1 year	-5.58%	-8.43%	+2.85%
Max Drawdown (3Y) Largest decline over 3 years	-6.93%	-18.91%	+11.98%
Max Drawdown (5Y) Largest decline over 5 years	-15.83%	-25.77%	+9.94%
Max Drawdown (10Y) Largest decline over 10 years	-25.39%	—	—
Current Drawdown Current decline from peak	-17.49%	-0.49%	-17.00%
Average Drawdown Average peak-to-trough decline	-10.52%	-5.61%	-4.91%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.28%	1.93%	+0.35%

Volatility

IBTM.L vs. GSPX.L - Volatility Comparison

The current volatility for iShares USD Treasury Bond 7-10yr UCITS ETF (Dist) (IBTM.L) is 1.86%, while iShares Core S&P 500 UCITS ETF (GSPX.L) has a volatility of 3.17%. This indicates that IBTM.L experiences smaller price fluctuations and is considered to be less risky than GSPX.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IBTM.L	GSPX.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.86%	3.17%	-1.31%
Volatility (6M) Calculated over the trailing 6-month period	4.69%	8.49%	-3.80%
Volatility (1Y) Calculated over the trailing 1-year period	6.35%	11.61%	-5.26%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	9.51%	16.05%	-6.54%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	10.63%	17.64%	-7.01%

IBTM.L vs. GSPX.L - Expense Ratio Comparison

IBTM.L has a 0.07% expense ratio, which is lower than GSPX.L's 0.10% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

IBTM.L vs. GSPX.L - Dividend Comparison

IBTM.L's dividend yield for the trailing twelve months is around 5.82%, more than GSPX.L's 0.80% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
GSPX.L iShares Core S&P 500 UCITS ETF	0.80%	0.89%	0.99%	1.15%	1.40%	0.96%	1.31%	1.50%	0.11%	0.00%	0.00%	0.00%
IBTM.L iShares USD Treasury Bond 7-10yr UCITS ETF (Dist)	5.82%	5.55%	5.00%	3.93%	2.34%	1.57%	2.13%	3.25%	3.07%	2.64%	2.40%	3.01%

Frequently Asked Questions

Can I hold both IBTM.L and GSPX.L in my portfolio?

IBTM.L and GSPX.L have a correlation of -0.26, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, IBTM.L or GSPX.L?

On fees, IBTM.L is cheaper at 0.07% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, IBTM.L or GSPX.L?

IBTM.L is cheaper with a 0.07% expense ratio, compared with 0.10% for GSPX.L.

What is the main difference between IBTM.L and GSPX.L?

IBTM.L is categorized as Government Bonds, while GSPX.L is S&P 500. IBTM.L tracks ICE U.S. Treasury 7-10 Year Bond Index, while GSPX.L tracks S&P 500 Index. Their fees differ too: 0.07% for IBTM.L and 0.10% for GSPX.L.