I don't think so. The fixed investment of the fund is the minimum investment stipulated by the fund company, some are 100 yuan, some are 200 yuan, and my fixed investment is Rongtong 100, which is operated by ICBC online banking. My fixed investment is 500 yuan. If the deduction index is higher than the specified range, the amount of fixed investment will be reduced, and it is possible to buy only 450 yuan. If the index falls sharply, it will be possible to buy more.

Over-the-counter subscription and subscription are entrusted according to the amount, and converted into shares after deducting the handling fee. Some funds can choose front-end and back-end fees. Redemption, according to the share of redemption.

On-site subscription is entered in the "Entrusted Quantity", and the subscription fee will be automatically deducted from the fund account after the entrustment is successful. For example, Shenzhen Stock Exchange refers to the ETF buying 10000 shares in the stock channel. After the entrustment is successful, deduct 1, 0 1, 000 yuan from the fund account.