Whether the funds obtained from selling stocks in your account on the same day can be used for the redemption of new shares on that day, I suggest you consult your broker.
The online IPO process and specific schedule are as follows:
(1)T- 1 day, the issuer and the lead underwriter publish the issuance announcement.
(2) On the T day, investors can inquire about their market value or purchasable quota through the securities companies designated for trading, and investors can subscribe for new shares according to the purchasable quota; Match the number on the same day and send the matching result data.
(3)T+ 1 day, the lead underwriter announces the winning rate and organizes the lottery to form the winning result; Shanghai Stock Exchange or China Clearing Shenzhen Branch will send the winning result to the securities company after the close of the day.
(4) On T+2, the lead underwriter announces the winning results, and investors can also inquire about the winning results from the securities companies designated by them.
Investors who win the lottery shall fulfill the obligation of fund delivery according to the result of the lottery, and ensure that their fund accounts have enough funds for the subscription of new shares at the end of T+2. Settlement participants may agree with investors on a specific time limit according to actual conditions.
(5) Before T+3 15:00, settlement participants shall report the data of their investors' abandonment of subscription to China Clearing; 16:00, China Clearing settled the subscription funds and transferred them to the fund settlement account of the lead underwriter.
(6) On T+4, the lead underwriter will allocate the subscription funds after deducting the underwriting fees to the issuer and announce the online issuance results.
References:
Detailed rules for the online issuance of initial public offerings in Shanghai market and detailed rules for the online issuance of initial public offerings in Shenzhen market.