If the transaction price of the on-site fund is higher than the net value of the fund, investors will "buy with the net value and sell at a high price" to earn the difference. If the transaction price of the on-site fund is lower than the net value of the fund, some investors will "buy at a low price and redeem the net value" to earn the difference.

Cost of holding positions = buying cost (that is, the transaction price multiplied by the number of transactions)+tax cost (mainly brokerage commission and stamp duty, which are only collected when selling, and both commission and transaction are required, and there are also transfer fees stocks in Shanghai).

Extended data:

It is normal that the cost of holding a position will always be higher than the transaction price. The purchase price of shares should be added with commission, tax (now tax-free) and transfer fees (there is no transfer fees in Shenzhen shares) to get the total amount, which is equal to the cost price per share when divided by the number of shares.

Because selling stocks requires paying commissions, taxes and transfer fees, the selling cost should be added when actually calculating the profit and loss cost of stocks. Securities companies buy and sell a stock many times before clearance, and the cost is calculated on a rolling basis.

When a user buys a stock, there is no extension fee at this time. If the user does nothing, the position price at this time = cost price. But if some positions stop loss or take profit, the user's position price will be averaged.

For example, an investor bought 65,438+000 shares in 2 yuan and sold 500 shares when the shares rose to 4 yuan. At this time, the investor has actually cut off the capital, and the position price of the remaining shares is zero. Even if it falls to zero yuan, the whole will not lose money. But the cost price is still 2 yuan.