Time To Put SL on Positional Longs

NSE:NIFTY   Nifty 50 Index
After good upside most likely Nifty prices are supposed to halt at 8940. In case you are positionally long its time to either exit your positions in profit or protect your profit with SL.
161 Level of Fibonacci have 50/50 expectancy to keep prices down for some time


Nice....wat should n trail sl for long positions.?