market.clearChanges();
market.setChange(Component.BOOK_COMBINED);
final DefBookEntry topAskPrice = new DefBookEntry(
MODIFY, Book.Side.ASK,
Book.Type.DEFAULT, ENTRY_TOP, price, top.side(Book.Side.ASK).sizeValue());
applyTop(topAskPrice, time, market);
return null;
case ASK_LAST_SIZE: