American Century Mid Cap Growth Impact ETF (MID)

NYSE Arca: MIDExchange-traded fund from American Century Investments.

  • Expense ratio0.42%
  • Net assets$104.5M
  • Dividend yield0.10%
  • 1-year return+4.92%
  • Holdings150

MID ETF price chart

MID quote & trading statistics

MID performance

Total return · as of October 18, 2026
  • YTD+7.94%
  • 1 year+4.92%
  • 3 years+17.87%/yr
  • 5 years+3.70%/yr
  • 10 years0.00%/yr
1Y volatility
13.08%
3Y volatility
17.66%
3Y Sharpe ratio
0.66

Returns include reinvested distributions; 3-, 5- and 10-year figures are annualized.

MID top 10 holdings

American Century Mid Cap Growth Impact ETF largest holdings by weight
#SymbolNameWeight
1NETCloudflare Inc4.03%
2DDOGDatadog Inc3.68%
3VSTVistra Corp.2.72%
4ALABAstera Labs, Inc.2.46%
5DXCMDexCom Inc2.38%
6RCLRoyal Caribbean Cruises Ltd1.99%
7CRDOCredo Technology Group Holding Ltd1.77%
8FIXComfort Systems USA Inc1.70%
9CPAYCorpay Inc1.64%
10SNOWSnowflake Inc.1.56%

The top 10 holdings make up 23.9% of the fund (150 holdings in total). As of October 18, 2026.

MID sector weights

Technology
34.9%
Industrials
18.2%
Healthcare
12.3%
Consumer Cyclical
12.3%
Financial Services
7.1%
Communication Services
4.6%
Utilities
3.1%
Real Estate
2.6%
Energy
2.5%
Consumer Defensive
1.0%
Basic Materials
0.3%

MID region weights

North America
98.1%
Latin America
0.8%
Europe Developed
0.3%
Australasia
0.2%

MID asset allocation

U.S. stocks
93.8%
Non-U.S. stocks
1.5%
Cash
0.3%

MID market-cap breakdown

Mid cap
69.6%
Small cap
17.1%
Large cap
13.9%
Mega cap
0.8%
Micro cap
0.3%

About American Century Mid Cap Growth Impact ETF

The fund will invest principally in exchange-traded common stocks. Under normal market conditions, the portfolio managers will invest at least 80% of the fund's assets in securities of medium capitalization companies. The fund may purchase securities of small and large capitalization companies as well. It may engage in active and frequent trading of portfolio securities to achieve its principal investment strategies. The fund is non-diversified.

MID ETF FAQ

What is the MID expense ratio?

American Century Mid Cap Growth Impact ETF has a net expense ratio of 0.42%, or $42.00 a year for every $10,000 invested.

How much money is in MID?

American Century Mid Cap Growth Impact ETF has about $104.5M in net assets.

What are the top holdings of MID?

The largest positions in MID are Cloudflare Inc (4.03%), Datadog Inc (3.68%), Vistra Corp. (2.72%). The fund holds 150 securities in total.

How has MID performed?

MID returned +4.92% over the past year and +3.70% a year over the past five years, including reinvested distributions.

Does MID pay dividends?

MID has a dividend yield of 0.10%.

When was MID launched?

American Century Mid Cap Growth Impact ETF began trading on July 15, 2020.

ETFs similar to MID

Funds that track the same index or whose top-10 holdings overlap most with MID's. Overlap: shared top-10 weight as a share of the larger top-10 total of the two funds.

ETFs with holdings most similar to MID, compared by expense ratio, assets and 1-year return
SymbolFundOverlapExpense ratioNet assets1-year return
MIDAmerican Century Mid Cap Growth Impact ETF—0.42%$104.5M+4.92%
FEMGFidelity Enhanced Mid Cap Growth ETF57%———