Blind split is actually a split method of graded funds, that is to say, you can apply for split before you see the share of the parent fund at T+ 1. The purpose is to avoid price fluctuation during the whole arbitrage process.
Under normal circumstances, the parent fund of Shenzhen Stock Exchange Graded Fund subscribed by investors in the T-day market can only be split after the T+2-day share arrives. If the split is successful, the sub-fund share will arrive on T+3. After investors apply for opening the blind split function, they can submit the application for blind split on T+ 1 day for the parent fund shares purchased on T+2 day, and the results can be inquired and confirmed on T+2 day. If the blind split is successful, the split shares will be received and provided on T+2.