A drab Friday performance saw blue-chip and junior market indices alike give up their gains for the week.
The top-shares measure, the FTSE 100, closed at 6,310, down 71 points on the day and 33 points on the week.
The FTSE Aim 100 ended the week at 3,423, down 22 points on the day and 27 points on the week.
The broader-based FTSE Aim All-Share fared little better, shedding three points on the day to close at 731, a point lower than it started the week.
It was a bad day for closely-followed fertiliser trader African Potash Ltd (LON:AFPO), which fell 41% to 0.85p as Mother Nature dealt it a bad hand.
The company suffered a setback as it revealed a lack of rain in southern Africa had led to delays in certain deals.
The company said it remained confident the fundamentals of the business remain attractive.
Patagonia Gold PLC (LON:PGD) got the usual reaction that a junior miner gets when it raises funds; the shares retreated 0.25p to 1.35p as it raised US$10mln.
Major shareholder and chairman Carlos Miguens is putting up half of the money through a subscription at 1.5p per share, while the rest will come from an open offer at the same price that Miguens will underwrite.
Asiamet Resources Limited (LON:ARS, CVE:ARS) suffered a similar fate, shedding 0.26p at 3.02p, as it raised £1.5mln via an oversubscribed private placing of shares at 3.1p each.
The money will help it advance its Beruang Kanan Main (BKM) copper project.
Going the other way was Midatech Pharma PLC (LON:MTPH, NASDAQ:MTP) after Jim Phillips, chief executive, talked about a study it is conducting on a treatment for an inflammatory eye disorder.
The video interview with Proactive Investors gave extra impetus to the shares, which had risen from 146p to 161.5p yesterday when the news first break; they rose a further 17.91p today to 179.41p.