Omega Diagnostics Group PLC (AIM:ODX) slipped 8% to 3.6p after reporting a first half pre-tax loss of £700,000.
Revenues in the six months to 30 September also slipped 18% to £3.4mln, the medical diagnostics company said.
"Whilst we expect a stronger second half, our full year sales will be marginally lower than previously anticipated to reflect the delayed US investment plans,” said chairman Simon Douglas.
“The performance expectations of the remainder of our business remain unchanged and the Group continues to target EBITDA break even this year."