Scottish medical software group Craneware caught stock market traders on the hop last week when a string of buying orders sent its share price surging a remarkable 10 per cent to a fresh all-time peak.

The upsurge provided a bonus for our 2015 portfolio which saw its overall valuation rise 2 per cent after we added Craneware to its selections only a few days earlier.

Followers say the price movement was exaggerated by a lack of sellers and claim the group could be nearing the stage where it could consider a move away from its listing on the junior Alternative Investment Market to a full quotation.

Interest in the group follows recent robust trading results from its US operations and was heightened by last week's news of an extended partnership deal with the Amerinet group whose members control some 82,000 medical outlets.

Investors also believe that Craneware, with its overwhelming US earnings, could provide protection from any downturn in the value of the pound after Thursday's elections.

Most of our other tips showed little overall change when we carried out our review on Wednesday morning after the FTSE 100 share index had slipped back from its record highs at the start of the week.

The 2014 portfolio, however, managed to edge higher with Belhaven brewery group Greene King, engineer Ricardo and Rio Tinto all scoring small gains.

The performance encouraged us to make a further notional investment in Mears Group, Scotland's biggest provider of maintenance services to social housing, which has seen its shares slip back on election uncertainties.

We believe the fears have been overdone with some 90 per cent of this year's earnings already in the bag while the group's home nursing side should gain from a new focus on integrating health and social needs down south.

We have set our usual stop loss level at which followers should consider selling on any major reversal.

We sold our notional holding in publisher Pearson under this rule last week after further weakness in its price was the main factor behind a 1.7 per cent fall in the value of the 2013 portfolio.

The 2012 selections were virtually unchanged over the week.