ARM ADRs
another thought.
looking at ARM's ADRs u may want to argue that the real sup is USD 6.50ish which is 7% off yesteday's US close, so roughly given 2.5% current UK decline wud mean that we need to go another 4.5% = 6 pence, so down to 116 pp to find support.
HOWEVER, USD 6.50 back in October is actually more in Sterling than same amount today, due to FX. As much as 6-8% really. SO it is 120ish, IF NOT higher.