“Markets were very volatile last night, with the S&P 500 index of leading US companies plunging by 3.2% and the tech-heavy Nasdaq index losing 4.3%. Weakness carried over to Asia with the Hong Kong market losing just over 2% whilst the Japanese market held up relatively well, limiting its losses to just 0.6%. FTSE 100 Opens Slightly HigherNerves seem to have steadied this morning and the FTSE 100 has opened 0.6% higher, with a broad spread of sectors making progress, from Automotives to Specialist Financials. The largest loser amongst the top 350 UK companies was Renishaw group after a trading…