An inverse fair value gap indicates that the current market structure (e.g., bullish) is weakening or failing, predicting a shift or reversal in market direction, similar to a break of structure.
"It's when a fair value Gap gets disrespected or closed underneath... what does that tell me about price action? It tells me that bullish Market structure... is no longer holding up similar to how a break of structure is a break of Market structure... so when I see an inverse for Value Gap I treat it like a break of structure like I'm now trying to look for things things in the opposite direction"