How to find ATM for NIFTY

tony_

How to find the ATM strike for Nifty based on the LTP

sujith

You can check out here or you may place an order and check the error message which shows the allowed range.

tony_

thanks @sujith for your response....Actually i wanted to know how to fetch ATM using kiteconnect api .....for python library

ALGO_Developer

@tony_ Hope you are looking for automating your trade, you can check this github page to get the ATM and all the option strike details for your trading instrument selection. https://github.com/TradeEasyWithMe/BANKNIFTY-OPTION-STRTEGY-BULL-CALL-SPREAD-ALGO-TRADING-with-LIVE-Execution

tony_

thanks @ALGO_Developer ....but your code works good for bank nifty.....i want to fetch for Nifty only....

ALGO_Developer

@tony_ dude it is real simple.. just change this from "tradingsymbol='NIFTY BANK' " to "tradingsymbol='NIFTY 50'"

tony_

okay @ALGO_Developer so here the code---
nifty_ltp =(kite.ltp('NSE:NIFTY 50')).get('NSE:NIFTY 50').get('last_price')
nifty_ltp
Out: 15740.1
val = nifty_ltp
val2 = math.fmod(val, 100)
#print('val2', val2)
x = val - val2
abs_val = "{:.0f}".format(x) # to remove .0 string.
print('\n Identified CE ATM:',"{:.0f}".format(x))
Out: Identified CE ATM: 15700
but the current ATM should be 15750
https://web.sensibull.com/option-chain?expiry=2021-06-10&tradingsymbol=NIFTY

ALGO_Developer

@tony_ you can add this additional below.
val = nifty_ltp
val2 = math.fmod(val, 50)
val3 = 0
if val2 >= 25:
val3 = 50
else:
val3 = 0
#print('val2', val2)
x = val - val2 + val3

tony_

yup now its correct....thanks for the logic.... @ALGO_Developer

ImAbhishekTomar

import math

def calculate_atm_strik(last_price, strik_def):
val1 = math.floor(last_price / strik_def) * strik_def
val2 = math.ceil(last_price / strik_def) * strik_def
return val1 if abs(last_price - val1) < abs(last_price - val2) else val2

current_atm_strik = calculate_atm_strik(45958.45, 100)
print("Current ATM Strik is:", current_atm_strik)

-----------
OUTPUT IS# Current ATM Strik is: 46000