SECT vs. THRO

Last updated Jun 4, 2026

SECT (Main Sector Rotation ETF) and THRO (iShares U.S. Thematic Rotation Active ETF) are both exchange-traded funds - SECT is a Large Cap Blend Equities fund actively managed by Main Management, while THRO is a Tactical Allocation fund actively managed by iShares. Both are actively managed. Over the past 3 years, SECT returned 20.34%/yr vs 24.41%/yr for THRO. Their correlation of 0.94 suggests significant overlap in exposure. SECT charges 0.78%/yr vs 0.60%/yr for THRO.

Performance

SECT vs. THRO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Main Sector Rotation ETF (SECT) and iShares U.S. Thematic Rotation Active ETF (THRO). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SECT achieves a 11.86% return, which is significantly lower than THRO's 12.78% return.

SECT

• 1D: -0.53%
• 1M: 7.71%
• YTD: 11.86%
• 6M: 12.38%
• 1Y: 31.19%
• 3Y*: 20.34%
• 5Y*: 12.80%
• 10Y*: —

THRO

• 1D: -0.55%
• 1M: 6.78%
• YTD: 12.78%
• 6M: 12.56%
• 1Y: 26.45%
• 3Y*: 24.41%
• 5Y*: —
• 10Y*: —

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

SECT vs. THRO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
SECT Main Sector Rotation ETF	11.86%	17.80%	18.61%	21.10%	-12.80%	2.62%
THRO iShares U.S. Thematic Rotation Active ETF	12.78%	15.04%	32.03%	24.40%	-17.85%	2.14%

Correlation

The correlation between SECT and THRO is 0.93, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.93
Correlation (3Y) Calculated over the trailing 3-year period	0.92
Correlation (All Time) Calculated using the full available price history since Dec 17, 2021	0.94

The correlation between SECT and THRO has been stable across timeframes, ranging from 0.92 to 0.94 - a consistent structural relationship.

SECT vs. THRO - Sectors Allocation Comparison

Sectors	SECT	THRO
Technology	38.9%	40.7%
Financial Services	14.4%	12.1%
Consumer Cyclical	12.7%	8.6%
Communication Services	12.0%	11.6%
Industrials	10.7%	10.4%
Energy	4.3%	1.7%
Basic Materials	4.0%	0.9%
Healthcare	2.6%	6.6%
Consumer Defensive	0.5%	7.1%
Utilities	0.1%	0.1%
Real Estate	0.0%	-

Return for Risk

SECT vs. THRO — Risk / Return Rank

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

SECT

SECT Risk / Return Rank: 68
SECT Sharpe Ratio Rank: 73
SECT Sortino Ratio Rank: 71
SECT Omega Ratio Rank: 71
SECT Calmar Ratio Rank: 59
SECT Martin Ratio Rank: 66

THRO

THRO Risk / Return Rank: 57
THRO Sharpe Ratio Rank: 60
THRO Sortino Ratio Rank: 60
THRO Omega Ratio Rank: 57
THRO Calmar Ratio Rank: 49
THRO Martin Ratio Rank: 60

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.

SECT vs. THRO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Main Sector Rotation ETF (SECT) and iShares U.S. Thematic Rotation Active ETF (THRO). 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.

	SECT	THRO	Difference
Sharpe ratio: Return per unit of total volatility	2.41	2.05	+0.36
Sortino ratio: Return per unit of downside risk	3.26	2.86	+0.40
Omega ratio: Gain probability vs. loss probability	1.43	1.36	+0.07
Calmar ratio: Return relative to maximum drawdown	2.93	2.44	+0.48
Martin ratio: Return relative to average drawdown	12.13	10.84	+1.29
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SECT vs. THRO - Sharpe Ratio Comparison

The current SECT Sharpe Ratio is 2.41, which is comparable to the THRO Sharpe Ratio of 2.05. The chart below compares the historical Sharpe Ratios of SECT and THRO, 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

	SECT	THRO	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.41	2.05	+0.36
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.72	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.69	0.75	-0.06

Drawdowns

SECT vs. THRO - Drawdown Comparison

The maximum SECT drawdown since its inception was -38.09%, which is greater than THRO's maximum drawdown of -26.54%. Use the drawdown chart below to compare losses from any high point for SECT and THRO.

Drawdown Indicators

	SECT	THRO	Difference
Max Drawdown Largest peak-to-trough decline	-38.09%	-26.54%	-11.55%
Max Drawdown (1Y) Largest decline over 1 year	-10.71%	-10.87%	+0.16%
Max Drawdown (3Y) Largest decline over 3 years	-21.71%	-19.07%	-2.64%
Max Drawdown (5Y) Largest decline over 5 years	-21.71%	—	—
Current Drawdown Current decline from peak	-0.53%	-0.55%	+0.02%
Average Drawdown Average peak-to-trough decline	-4.65%	-6.69%	+2.04%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.58%	2.45%	+0.13%

Volatility

SECT vs. THRO - Volatility Comparison

Main Sector Rotation ETF (SECT) and iShares U.S. Thematic Rotation Active ETF (THRO) have volatilities of 3.46% and 3.47%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SECT	THRO	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.46%	3.47%	-0.01%
Volatility (6M) Calculated over the trailing 6-month period	9.62%	10.09%	-0.47%
Volatility (1Y) Calculated over the trailing 1-year period	13.01%	13.00%	+0.01%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.80%	18.72%	-0.92%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	20.13%	18.72%	+1.41%

SECT vs. THRO - Expense Ratio Comparison

SECT has a 0.78% expense ratio, which is higher than THRO's 0.60% expense ratio.

Dividends

SECT vs. THRO - Dividend Comparison

SECT's dividend yield for the trailing twelve months is around 0.60%, more than THRO's 0.16% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
SECT Main Sector Rotation ETF	0.60%	0.32%	0.45%	0.84%	0.86%	0.60%	1.37%	0.77%	1.67%	0.50%
THRO iShares U.S. Thematic Rotation Active ETF	0.16%	0.15%	0.73%	0.55%	0.90%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both SECT and THRO in my portfolio?

With a correlation of 0.93, SECT and THRO move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, SECT or THRO?

THRO has higher volatility (3.47%) compared to SECT (3.46%). In terms of maximum drawdown, SECT dropped -38.09% vs THRO's -26.54%.

Which ETF is better, SECT or THRO?

On 3-year performance, THRO leads with 24.41% vs 20.34% for SECT. On fees, THRO is cheaper at 0.60% per year. Their volatility is very similar. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, SECT or THRO?

Over the 3-year period, THRO has performed better with a 24.41% return vs 20.34%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, SECT or THRO?

THRO is cheaper with a 0.60% expense ratio, compared with 0.78% for SECT.

Which ETF pays a higher dividend yield, SECT or THRO?

SECT has the higher dividend yield at 0.60%, compared with 0.16% for THRO.

What is the main difference between SECT and THRO?

SECT is categorized as Large Cap Blend Equities, while THRO is Tactical Allocation. They also come from different issuers: Main Management and iShares. Their fees differ too: 0.78% for SECT and 0.60% for THRO.

Which has better risk-adjusted returns?

SECT currently has the higher Sharpe Ratio (2.41 vs 2.05), 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.