There is no limit on the size of ETF funds.

ETF funds can be subscribed and redeemed. If more and more shares are subscribed, the net value of the fund will also continue to grow.

The size of ETF funds will also increase accordingly.

Moreover, generally ETF funds are index funds, so managers do not need to control the scale.

ETF-traded open-end index funds, often called Exchange Traded Funds ("ETF" for short), refer to an open-end fund that is listed and traded on an exchange and has variable fund shares.

Note: Since OTC transactions are for subscribing fund shares from a basket of stocks, the OTC funds that can subscribe are ETF feeder funds, not ETF funds.