grey market
gray market

It may have come from the flourishing "gray market" in film.

The outcome of the case could determine whether the gray market continues to thrive.

I think he started from the gray market and realized you could make a whole bunch of money.

Don't know why the gray market is relevant in this discussion.

On yesterday's new grey market, the shares rose from an issue price of 585p to 612p.

They seek out the gray market, driving up prices at auction.

Think of what those can be worth on the gray market.

In some cases, a manufacturer's own retailers sell into the gray market.

And, if a drug is recalled, it may be impossible to find those that have traveled through the gray market.

In addition to raising safety questions, the gray market can increase the price of some drugs.