The Island Reversal is a powerful reversal pattern formed when price gaps in one direction, trades in a tight range for a few sessions, then gaps back in the opposite direction — leaving a cluster of candles "stranded" like an island, disconnected from the rest of the price history by gaps on both sides.

Island Reversal Diagram

Bearish Island Reversal Island Gap up → ← Gap dn Island stranded above both gaps
Gap up isolates island | Gap down abandons it | Both gaps = no support beneath

Why Island Reversals are So Powerful

When the second gap occurs in the opposite direction:

  • Everyone who bought during the "island" sessions is now trapped above the gap
  • There is no support between the island and lower prices — price falls through the gap area rapidly
  • The pattern forces all recent buyers to become sellers simultaneously — creating a cascade effect

Trading the Island Reversal

Bearish Island Reversal Entry:
Entry: Short on the close of the second gap-down candle (or open of next session)
Stop Loss: Above the top of the island (the high made during the island sessions)
Target: Prior support zones below the pattern — minimum equal to the island height

Confirmation: High volume on the gap-down candle dramatically increases reliability
Island Reversals on NSE are most common after quarterly results surprises. A stock gaps up on strong results, trades higher for 2–3 days, then receives a broker downgrade or sector selloff and gaps back down — trapping result-day buyers. These patterns often lead to corrections of 15–30% as trapped buyers panic-sell.
Island Reversals can occasionally be false — particularly during market-wide selloffs where everything reverses temporarily. Always verify the island reversal on an individual stock is NOT simply tracking a broader market selloff before taking the trade.