DRA0.09 - ATM_LabelDraw Indicator

This is a code to draw a label which displays the At The Money Strike as per the first 5 minute candle on an Index chart.

// This Pine Script™ code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © rahuld0890
 
//@version=6
indicator("DRA0.09 - ATM_LabelDraw Indicator", overlay=true, precision=0)
 
// Get 5-minute timeframe values
var float dailyFirstClose = na
var int firstCloseBarIndex = na
 
// Check for new day in 5-minute timeframe
isNewDay = ta.change(time("D")) != 0
 
// Capture first 5-minute open/close on new day
if isNewDay
    dailyFirstClose := close
    firstCloseBarIndex := bar_index
else
    // Carry forward previous values
    dailyFirstClose := dailyFirstClose[1]
 
// Calculate ATM Strike Price
atm_strike = math.round(dailyFirstClose / 100) * 100
 
// Plot hidden series to display in Data Window
plot(atm_strike, title="ATM Strike Price", display=display.none)
 
// Optional: Display as text on chart
var label atmLabel = label.new(na, na, "", style=label.style_label_left, size=size.small)
label.set_xy(atmLabel, firstCloseBarIndex, dailyFirstClose)
label.set_text(atmLabel, "ATM: " + str.tostring(atm_strike))