Why Tata Chemical qualifies as runaway gap.
1. Increased volumes post breakout
2. Breakout happened and it was not retested, showing momentum.
3. Post gap-up the momentum increased and we closed near day's high.
Based on the gap measure, (runaway gaps happen in middle of trend). Target based on that is 532 or 590.
Stoploss would be gap itself (ie close below 437).
Buyers are taking a pause but there is no momentum in selling so far. Stock should resume uptrend