The summertime blues gripped global markets this week. Falls in US and other tech stocks on Monday sent a cold shiver through investors.

Although a midweek turnaround brought sighs of relief, by yesterday the selling had resumed. Such volatility is a signal that there is certain to be more nerve-jangling periods in the weeks to come.

This is not the moment to run scared. But in this changed climate of rollercoaster share prices and sizzling heatwave temperatures, it makes sense to look for shelters.

The threats could lurk closer to home, with would-be Prime Minister Andy Burnham rumoured to be planning measures that could endanger savings.

Here's your guide to what's happening and how to stay safe - but also make the most of opportunities.