After a very volatile trading week, investors on the JSE will be able to breathe a sigh of relief this Monday with US and UK markets closed.

This was some of the small and mid-cap market news we spotted on Friday:

The battle for Murray & Roberts is fierce

The construction group continues to have to fend off the advances of foreign shareholder ATON which continued to acquire shares last week. ATON now holds 194.3m shares representing 43.7% of the issued share capital.

NVEST might be worth watching

Small-cap financial services group NVEST Financial Holdings delivered a credible operating performance for the year ended 28 February 2018. Headline earnings rose by 6.6% to R59m, assets under management and administration climbed 14.2% to R29.7bn and investors got a full-year dividend of 11c offering a dividend yield of just over 5%.

RH Bophelo releases maiden results

The healthcare group released full year for the year ended 28 February 2018. These results are largely meaningless as the group had not secured viable assets at the time of reporting. The company is currently in the process of securing operating assets.

Mazor director sells

Allan Groll, non-executive director at Mazor sold 1.5m shares at R1.50. Shares in the company are down 28% year to date.

Cargo improves

Shares in Cargo Carriers were unchanged as the company indicated it would see a 100% increase in earnings per share (from continued operations) when it released results shortly.

Ivory Coast projects knocks Renergen

Energy group Renergen has warned that the headline loss per share is expected to be between 60-80% higher. This follows the write-down of a hydro-power project in the Ivory Coast and additional expenditure on its Virginia project.