Сumulative delta is a reliable source of traders' tactics and actions. It reflects the desire to buy or sell asset at favorable prices, in order not to miss the upcoming movement - greed and fear, and quickly exit the position by market prices - not to lose the accumulated profit.
Very often, an imbalance that occurs on one side leads to price reversal, and the accumulation of this imbalance can be seen with the help of a delta only.
The delta itself does not mean anything, it must be considered in combination with the price dynamics, and for greater accuracy - changes in open interest.
The cumulative delta demonstrate us efforts on the part of buyers / sellers, then we see what result they lead to (on the price chart), and based on this information we can make the following conclusions: