IEX Shares Plunge as CERC to Implement Market Coupling

Imagine a marketplace where electricity is bought and sold.

Right now, each marketplace, or exchange, sets its own prices.

The main exchange, IEX, is like the biggest store and sets the prices for everyone else.

The government is changing things.

They're making all the marketplaces share one price, like a central price system.

This means all the stores will use the same price.

Because IEX is the biggest store, this change worries its owners, as they're concerned it may impact their business, which made their stock price go down.