China just took action to reduce stock market speculation

The China financial futures exchange (CFFEX) just announced a swathe of measures designed to limit market speculation.

In a release today CFFEX stated that margin requirements for futures trading had been raised along with transaction fees. They will also restrict trading positions in some stock index futures.

Having seen stock futures fall by as much as 10% on both Monday and Tuesday - their maximum daily limit - it's likely any restrictions will involve short positions.

The rules will come into effect immediately.