Why delta is crucial in option strategy

Delta signifies the equivalent FX spot outrights of a given position. This is the sensitivity of a position's value with respect to the spot rate.

This is useful to monitor directional risks so you may know how much your option's value will increase or diminish as the underlying market moves.

A higher delta value is desirable for an option holder, whilst a delta close to zero is desirable for the option writer; a buyer wants their option to become more valuable whilst a seller wants the option to become less valuable.

For an instance, as we can see in the chart that overall position in GBPUSD behaves as if it was long 50,032.94 GBPUSD spot.

But in real terms, if at all GBPUSD spot were to move up by one pip then the relative sensitivity in option premium would be USD 0.5003. To hedge a call, one would invest the option price proceeds into Δt∗St+Bt=ct (where Δ=delta).

These terms may seem quite strange to you but nothing rocket science hidden in it, we would run you through these blackscholes in upcoming articles.