Leg Out

You owned 18 million shares of GE. The stock tanked. But you don't want to just dump the entire load of 18 million and see the stock drop another $2. You've lost enough money on it already. So you leg out. That is, each day, for 18 trading days, you sell a million shares...a small enough number in the scheme of the massive number traded each day by GE such that you won't move the needle perceptibly as you get out of this once-great company's shares.