Within one or two months, most trading prices fell back to their previous equilibrium.

That figure may increase to 290,000 shares based on the stock's trading price before the deal closes, which is expected in about a month.

Investors can trade in real time for a $14.95 commission, though they cannot specify a trading price.

After that, the stock's trading price will be reduced by a third.

That is far higher than the current trading price of the class B stock, which closed yesterday at $42.75.

At Friday's trading price the stock was worth more than $1.2 million.

If so, then the 6,000 shares outstanding would each be worth $1,000, or roughly eight times their current trading price.

One change would address the wide range of trading prices at the beginning and end of each session.

Net asset values went the way of trading prices - down.

If the market is moving quickly, a delayed quote can be substantially different from the real trading price.