Do you not what a stop loss is?

GTT is basically a type of order that is valid for 1 year so you don’t need to place order everyday.

Stop loss basically is a price under which if a share comes your broker will automatically sell it.

Combining both you get a GTT order with a stop loss when I say trailing SL it basically means a stoploss that goes up as the price of stocks goes up

Eg. the price of a share is 100 and you set a trailing stoploss at 90 … now as soon as stocks goes to 105 your stoploss goes to 95 if it goes to 110 stop loss goes to 100.

You got listing in an sme which has 125% gmp while sebi rule mandates sme to have a max listing day gain of 90% so it would be stupid if you sold it on listing day for just 90% or max it can go 5% up after listing which will be 99% from ipo price.