Stock lending and borrowing happens in a separate segment.
Nowadays, some stocks are trading at a premium to their futures.
Big traders borrow shares from the SLB market (stock lending and borrowing market) and sell these shares in the cash market. Simultaneously, they buy futures in the same quantity.
On expiry, as spot and futures prices converge, the short sellers reverse their positions.
The borrowed shares are then returned to the lenders.
The lenders get a small premium for lending their stocks.
See this screenshot. It is a quote for Bank of India in the SLB market.
01 indicates that it is the quote (of lending fee) for borrowing Bank of India shares for reverse settlement in
January. The reverse settlement will happen on first Thursday of January.
Rs 2.31 is the lending fee that the borrower will pay to the lender.
If a lender is willing to lend for Rs 2.31, he will place an order at Rs 2.31. The "trade" will happen at Rs 2.31.
The settlement will be done on T+1 day. The lender will get his Rs 2.31 per share on T+1 day.
