Share Price Spread Can Double on Request of Market Makers

The floor and ceiling of share prices can increase by up to ±12% for a particular ticker on the request of market makers, said the market operation head at the Securities and Exchange Organization.   
Citing new instructions from the SEO, Mehdi Zamani said not all market makers have such permission. 
“First they must be approved by the regulator. Eligible market making companies must meet specific requirements,” he told state TV, the IRIB news website reported.