The JSE all share opened sharply lower on Friday after British voters voted to exit the EU.The market was following weaker Asian markets as the Nikkei 225 plummeted 7.92% and the Hang Seng shed 4.19%. The FTSE was 6.94% lower as the British pound tumbled to 1985 levels.The Dow closed 1.29% higher on Thursday on optimism that the "remain" camp would win.Rand tumbles 8% to dollar as Brexit vote jolts world marketsAfter dropping 3.50% immediately at the opening‚ the all share was 4.40% lower at 51‚230.10 at 9.25am and the top 40 lost 4.78%.Losses were across the board‚ led by financials plummeting 7.10%. Banks shed 5.75% and general retailers dropped 5.37%. The listed property index was 4.82% weaker and industrials dropped 3.91%. Resources were off 2.92%.In contrast gold shares rocketed with the index‚ gaining 19.05% as investors fled to safe-haven investments‚ including the benchmark US 10-year treasury bond.British Prime Minister David Cameron will step down in October after Brexit voteThe spot gold price was 5.27% higher at $1‚321.56/oz but the oil price fell sharply by 4.14% to $48.85 a barrel. Global risk appetite was being obliterated in the wake of the largest risk-off event in recent times‚ Nedbank Corporate and Investment Bank (CIB) analysts said in an early morning note."It is difficult to assess the final outcome as the EU regulations stipulate a two-year time framework within which to renegotiate new trade terms and market access treaties‚" Nedbank said.Watch how the pound plunged after Britain voted to leave the EUNedbank said markets had judged the outcome as negative and supportive of safe-haven trades in the near term. "Markets are firmly in the grip of risk-off‚" Nedbank said.Among the global miners Anglo American shed 9.79% to R133.09. Glencore plummeted 13.27% to R28.35.Sasol was 4.24% lower at R389.29.Among gold stocks‚ Sibanye Gold rocketed 21.37% to R52.99. Gold Fields jumped 18.52% to R71.93.Barclays Africa led the losses among the big banks‚ dropping 6.63% to R143.01. Standard Bank shed 6.06% to R122.10 and FirstRand dropped 5.78% to R43.53.Old Mutual was 10.50% lower at R37.05. Sanlam dropped 5.55% to R59.23.Among retailers‚ Truworths shed 7% to R87.62 and Woolies dropped 5.23% to R80.74.Steinhoff was 6.81% off at R83.86.Among property stocks‚ Growthpoint dropped 5.30% to R23.41. Capital & Counties plummeted 18.20% to R63.50.Naspers was off 2.66% to R2‚170.71. - TMG Digital/BDlive..