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MIDvsTMATETF Comparison

ETF 1

MID

American Century Mid Cap Growth Impact ETF

This fund is part of

US Mid Cap Growth

+0.03%

Full MID fund page

VS

ETF 2

TMAT

Main Thematic Innovation ETF

This fund is part of

Multiple Trends

-0.04%

Full TMAT fund page

American Century Mid Cap Growth Impact ETF (MID) belongs to the US Mid Cap Growth segment. Main Thematic Innovation ETF (TMAT) is part of the Multiple Trends segment. MID's top 3 sector exposures are Industrials, Information Technology and Health Care. In contrast, TMAT's top sector exposures are Information Technology, Industrials and Health Care. MID is less expensive with a Total Expense Ratio (TER) of 0.45%, versus 0.85% for TMAT. MID is up 1.28% year-to-date (YTD) with -$1M in YTD flows. TMAT performs better with 6.93% YTD performance, and +$4M in YTD flows. Run a side-by-side ETF comparison of MID and TMAT below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.

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MID vs TMAT performance and flow charts

Performance

Cumulative Flows

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Daily, global ETF data for advanced analysis or integration into apps (API), from our partner Trackinsight.

Data Services

Historic performance and flows

Data as of 05/01/2026

		1M	3M	YTD	1Y	3Y	5Y
Perf.	MID TMAT	+6.45%+13.23%	-0.53%+8.62%	+1.28%+6.93%	+14.06%+42.26%	+49.10%+101.32%	+28.42%+13.45%
Flows	MID TMAT	+$4M+$1M	+$4M+$307K	-$1M+$4M	+$10M+$20M	+$35M+$32M	+$62M+$84M

Volatility and drawdown

		3M	1Y	3Y	5Y
Volatility	MID TMAT	+22.34%+25.50%	+17.77%+24.26%	+19.98%+27.82%	+24.01%+30.53%
Max drawdown	MID TMAT	-11.14%-10.64%	-14.34%-21.62%	-23.84%-33.46%	-40.04%-52.06%
Max drawdown duration	MID TMAT	50d43d	186d204d	154d129d	1060d1478d

Trading data

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	MID	TMAT
Last sale 5/5/2026 at 1:30 PM	$66.47	$27.12
Previous close 05/04/2026	$66.16	$26.79
Consolidated volume 05/04/2026
Average volume 30 days
Average discount or premium 30 days
Average Bid/Ask spread 30 days

Main metrics

Last update 5/5/2026 at 1:30 PM

Live

Closed

	MID	TMAT
Last price	$66.47	$27.12
1D performance	+0.47%	+1.23%
AuM	$96.25 M	$213.15 M
E/R	0.45%	0.85%

Characteristics

	MID	TMAT
Management strategy	Active	Active
Provider	American Century Investments	Main Management ETF Advisors
Benchmark	-	-
N° of holdings	34	82
Asset class	-	-
Trailing 12m distribution yield	Join	Join
Inception date	July 15, 2020	January 29, 2021
ESG	Yes	No

More MID data on Trackinsight

More TMAT data on Trackinsight

Exposure

Countries

MID

USA

79.4%

Other

20.6%

TMAT

USA

83.68%

Other

16.32%

Sectors

MID

Industrials

22.13%

Information Techn.

21.82%

Health Care

15.25%

Consumer Discreti.

11.99%

Energy

7.12%

Other

21.69%

TMAT

Information Techn.

41.15%

Industrials

21.82%

Health Care

8.44%

Other

28.59%

Diversification

MID

Total weight of top 15 holdings out of 15

60.89%

TMAT

Total weight of top 15 holdings out of 15

28.76%

Top 15 holdings

Data as of March 31, 2026

MID

CLOUDFLARE INC

6.85%

MONOLITHIC POWER SYSTEMS

6.34%

JOHNSON CONTROLS INTERNATIONAL

5.84%

TARGA RESOURCS

4.90%

TRACTOR SUPPLY

4.54%

VISTRA CORP

4.29%

CADENCE DESIGN SYSTEMS

3.96%

WESCO INTL

3.93%

VERTIV HOLDINGS

3.33%

MSCI

3.31%

HUBBELL

3.06%

REPUBLIC SVCS

2.89%

TOPBUILD CORP

2.64%

ALNYLAM PHARMACEUTICALS

2.60%

ZSCALER INC

2.41%

TMAT

PALO ALTO NETWORKS

2.57%

CLEAR SECURE

2.54%

LUMENTUM HOLDINGS

2.42%

CIENA

2.17%

MICRON TECHNOLOGY

2.07%

KEYSIGHT TECHNOLOGIES

1.93%

US36828A1016

1.88%

AUTODESK

1.85%

CROWDSTRIKE HOLDINGS INC

1.69%

UBER TECHNOLOGIES INC

1.67%

ARGAN

1.64%

INSULET

1.62%

CLOUDFLARE INC

1.59%

FORTINET

1.58%

WOODWARD

1.54%

Frequently asked questions about MID and TMAT

How have the MID and TMAT ETFs performed in 2026?

As of May 1, 2026, MID is up 1.28% year-to-date (YTD), while TMAT has returned 6.93%. That puts TMAT better performer ahead so far this year.

Which ETF is attracting more investor money: MID or TMAT?

Year-to-date, the MID ETF saw -$1M in flows, compared to +$4M for TMAT.

Which ETF is more volatile: MID or TMAT?

Over the past year, MID had a volatility of 17.77%, while TMAT experienced 24.26%.

Which ETF is bigger: MID or TMAT?

As of May 1, 2026, MID holds $96.25 M in assets under management (AUM), while TMAT manages $213.15 M.

What sectors do the MID and TMAT ETFs invest in?

MID leans toward sectors like Industrials, Information Technology and Health Care. Meanwhile, TMAT focuses on Information Technology, Industrials and Health Care.

What are the top holdings of the MID ETF and TMAT ETF?

MID top holdings include CLOUDFLARE INC, MONOLITHIC POWER SYSTEMS and JOHNSON CONTROLS INTERNATIONAL. TMAT holds in its top three: PALO ALTO NETWORKS, CLEAR SECURE and LUMENTUM HOLDINGS.

Which ETF is more diversified: MID or TMAT?

MID holds 34 securities with 60.89% of its assets in the top 15. TMAT has 84 securities and a top 15 weight of 28.76%.

Biggest potential ETF theme - Innovation

October 13, 2022

TMAT

MIDvsTMATETF Comparison

American Century Mid Cap Growth Impact ETF

Main Thematic Innovation ETF

MID vs TMAT performance and flow charts

Performance

Cumulative Flows

Get all the metrics on this page, and more, through a reliable ETF data feed

Countries

Sectors

Diversification

Top 15 holdings

How have the MID and TMAT ETFs performed in 2026?

As of May 1, 2026, MID is up 1.28% year-to-date (YTD), while TMAT has returned 6.93%. That puts TMAT better performer ahead so far this year.

Which ETF is attracting more investor money: MID or TMAT?

Year-to-date, the MID ETF saw -$1M in flows, compared to +$4M for TMAT.

Which ETF is more volatile: MID or TMAT?

Over the past year, MID had a volatility of 17.77%, while TMAT experienced 24.26%.

Which ETF is bigger: MID or TMAT?

As of May 1, 2026, MID holds $96.25 M in assets under management (AUM), while TMAT manages $213.15 M.

What sectors do the MID and TMAT ETFs invest in?

MID leans toward sectors like Industrials, Information Technology and Health Care. Meanwhile, TMAT focuses on Information Technology, Industrials and Health Care.

What are the top holdings of the MID ETF and TMAT ETF?

MID top holdings include CLOUDFLARE INC, MONOLITHIC POWER SYSTEMS and JOHNSON CONTROLS INTERNATIONAL. TMAT holds in its top three: PALO ALTO NETWORKS, CLEAR SECURE and LUMENTUM HOLDINGS.

Which ETF is more diversified: MID or TMAT?

MID holds 34 securities with 60.89% of its assets in the top 15. TMAT has 84 securities and a top 15 weight of 28.76%.

Biggest potential ETF theme - Innovation

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