A single trade, valued at £58 million pounds, has cornered the European market for cocoa beans. It amounts to 241,000 tons and will be stored in a warehouse.
The aim is to cause a shortage and push up prices
Personally I didn't think of chocolate when I read that - I thought more of pedal pushers and short longs or long shorts from your second sentence...
The wikipedia psychologists amongst you can decipher my brains thinkings then...