In addition to the stock price, when CBBCs are in different ranges, their minimum spreads will be different and the sensitivities of the relevant CBBCs will also be different. The influence is most noticeable impact can be seen in an HSI CBBC. Let's review the formula for calculating its sensitivity:
Say a bull has a delta of 1, an entitlement ratio of 10,000:1 and the price below $0.25; when the futures index moves by 10 points, the bull price will theoretically move by 1 tick ($0.001).
However, when the product becomes further from its call level, and the bull price rises above $0.25, its sensitivity will become 10000 x 0.005 = 50; that is, when the futures index moves by 50 points, the bull price will theoretically only move by 1 tick ($0.005)! No wonder CBBCs with further call levels have always been rather unpopular!
As for a stock CBBC, again say the delta is 1, the spot price of Xiaomi is $10.2, and the spot price of a 10:1 Xiaomi bull is $0.240. When the minimum spreads of the underlying asset and bull are $0.02 and $0.001 respectively, its sensitivity is =
That is, when Xiaomi's stock price moves by 1 tick ($0.02), assuming all other factors remain unchanged, the bull price will move by 2 ticks ($0.002).
However, when the bull price rises to $0.26, the minimum spread of the bull will be changed to $0.005, its sensitivity is =
That is, when the stock price of Xiaomi moves by 3 ticks ($0.06), the bull price will only move by 1 tick ($0.005). The bull's sensitivity has dropped significantly with the increase in the minimum spread of the bull price. It also explains why CBBCs priced below $0.25 are generally more popular with investors.