The rand slumped overnight, moving above the R10-a-dollar level, and was early on Thursday morning trading at its worst levels since August 2002.
South African stocks were weaker at midday on Tuesday, weighed by falls in resources and miners amid lower commodities prices.
South African stocks were firmer at midday on Thursday as mining shares moved higher on improved precious metals prices due to the weaker US dollar.
SA stocks remained weaker at midday on Thursday, following the trend on global markets as banks and financials once again took centre stage.
South African stocks remained in the black at midday on Wednesday, buoyed by resources and mining stocks.
South African stocks remained in the red at midday on Tuesday as commodities stocks continued to weigh.
The JSE remained firm on Monday as platinum mining and resources stocks posted good gains. Sentiment was positive, in line with global markets.
The rand weakened further on Friday morning as the dollar posted further gains against the euro.
The JSE remained on the back foot at midday on Monday as the overall market was weighed by weaker mining stocks.
The JSE extended its losses on Friday morning and was over 2% weaker at midday, led by falls in resources and mining stocks.
The JSE was off its lows at midday on Tuesday, thanks to firmer resources. However, players remained cautious as overseas markets are weaker.
The JSE remained firmer on Wednesday, as banks, financials and industrials found favour following a strong performance on Wall Street overnight.
The JSE remained in the black at midday on Monday despite fairly flat global markets. Resources staged a recovery after being hard hit last week.
The JSE remained in the red at midday on Friday, weighed down by weaker resources. However, banks and financial stocks continued their gains.
The JSE remained in the black at midday on Thursday, but was off its earlier highs as resources reversed gains and moved into negative territory.
The technical problems that have delayed the opening of the JSE on Monday had still not been resolved by noon on Monday.
South African stocks remained in the black at noon on Friday as resources recovered after recent losses.
After following Asian markets weaker at the opening on Wednesday, the JSE turned around during the course of the morning and moved into the black.
After opening flat on Tuesday morning, the JSE followed world markets into the red during the course of the morning.
South African stocks remained in the black at midday on Monday, thanks to firm resources stocks, which are benefiting from soaring metals prices.