As we can glance over the sensitivity table of this pair, for every shift towards OTM areas we can spot out the increase in gamma correspondingly and this is not comparatively happening in ITM zones.

More importantly, we can observe higher vols in OTM strikes as well which is favorable for option holders.

As we know gamma is always a positive value, therefore you add gamma to the value of the current delta to estimate the new delta in a rising market and you subtract gamma from the current delta to estimate the new delta in a falling market.

From the last couple of days, since the underlying spot FX is rising, we can currently add these numbers to the existing delta to arrive new delta while choosing and formulating the right strikes in the option strategies.

No doubt today’s upswings have continued the last couple of days gains but in a broader perspective we also consider the major downswings while hedging, so any continued downswings may also turn adversely as we think the current downtrend holds stronger, so we've tailored our formulation of strategies as the risk appetite varies from different investors to different traders.

The naked at the money put option with 7 days expiry was highly sensitive to moves in the underlying exchange rate of GBP/CHF when gamma was at around 0.1237.

1W ATM volatility is perceived at 17.11% and it is likely to increase in the long run (for next 6 months to 1-year span).

Because in the sensitivity table gamma shows how much the delta would shift for a corresponding underlying rate move by 1%.