IDGT vs. TCAI

Last updated Apr 1, 2026

Compare and contrast key facts about iShares U.S. Digital Infrastructure and Real Estate ETF (IDGT) and Tortoise AI Infrastructure ETF (TCAI).

IDGT and TCAI are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. IDGT is a passively managed fund by iShares that tracks the performance of the S&P Data Center, Tower REIT and Communications Equipment Index - Benchmark TR Gross. It was launched on Jul 10, 2001. TCAI is an actively managed fund by Tortoise. It was launched on Aug 4, 2025.

Performance

IDGT vs. TCAI - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares U.S. Digital Infrastructure and Real Estate ETF (IDGT) and Tortoise AI Infrastructure ETF (TCAI). The values are adjusted to include any dividend payments, if applicable.

IDGT vs. TCAI - Yearly Performance Comparison

	2026 (YTD)	2025
IDGT iShares U.S. Digital Infrastructure and Real Estate ETF	15.26%	3.40%
TCAI Tortoise AI Infrastructure ETF	16.67%	17.77%

Returns By Period

In the year-to-date period, IDGT achieves a 15.26% return, which is significantly lower than TCAI's 16.67% return.

IDGT

• 1D: 4.04%
• 1M: 0.65%
• YTD: 15.26%
• 6M: 13.47%
• 1Y: 33.94%
• 3Y*: 12.28%
• 5Y*: 8.33%
• 10Y*: 11.15%

TCAI

• 1D: 4.49%
• 1M: -6.61%
• YTD: 16.67%
• 6M: 16.89%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

IDGT vs. TCAI - Expense Ratio Comparison

IDGT has a 0.41% expense ratio, which is lower than TCAI's 0.65% expense ratio.

TCAI

Tortoise AI Infrastructure ETF

IDGT

iShares U.S. Digital Infrastructure and Real Estate ETF

Return for Risk

IDGT vs. TCAI — Risk / Return Rank

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

IDGT

IDGT Risk / Return Rank: 85
IDGT Sharpe Ratio Rank: 83
IDGT Sortino Ratio Rank: 84
IDGT Omega Ratio Rank: 79
IDGT Calmar Ratio Rank: 89
IDGT Martin Ratio Rank: 89

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.

IDGT vs. TCAI - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares U.S. Digital Infrastructure and Real Estate ETF (IDGT) and Tortoise AI Infrastructure ETF (TCAI). 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.

	IDGT	TCAI	Difference
Sharpe ratio Return per unit of total volatility	1.58	—	—
Sortino ratio Return per unit of downside risk	2.15	—	—
Omega ratio Gain probability vs. loss probability	1.30	—	—
Calmar ratio Return relative to maximum drawdown	2.83	—	—
Martin ratio Return relative to average drawdown	10.81	—	—
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

Sharpe Ratios by Period

	IDGT	TCAI	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.58	—	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.36	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.48	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.14	1.80	-1.66

Correlation

The correlation between IDGT and TCAI is 0.66, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.

Dividends

IDGT vs. TCAI - Dividend Comparison

IDGT's dividend yield for the trailing twelve months is around 0.97%, more than TCAI's 0.04% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IDGT iShares U.S. Digital Infrastructure and Real Estate ETF	0.97%	1.17%	1.64%	0.37%	0.30%	0.28%	0.60%	0.42%	0.65%	0.57%	0.75%	0.72%
TCAI Tortoise AI Infrastructure ETF	0.04%	0.05%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Drawdowns

IDGT vs. TCAI - Drawdown Comparison

The maximum IDGT drawdown since its inception was -77.95%, which is greater than TCAI's maximum drawdown of -15.80%. Use the drawdown chart below to compare losses from any high point for IDGT and TCAI.

Drawdown Indicators

	IDGT	TCAI	Difference
Max Drawdown Largest peak-to-trough decline	-77.95%	-15.80%	-62.15%
Max Drawdown (1Y) Largest decline over 1 year	-12.23%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-35.83%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-36.88%	—	—
Current Drawdown Current decline from peak	-2.55%	-8.07%	+5.52%
Average Drawdown Average peak-to-trough decline	-20.05%	-3.97%	-16.08%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.20%	—	—

Volatility

Volatility by Period

	IDGT	TCAI	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.20%	—	—
Volatility (6M) Calculated over the trailing 6-month period	15.09%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	21.55%	35.03%	-13.48%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	23.03%	35.03%	-12.00%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.14%	35.03%	-11.89%