以下是引用cathytutu在2007-12-3 14:37:00的发言:Maybe I can't agree on this. Notes stated that price-weighted index tends to be baised downward as large growth companies may issue stock-split which downwards price-weighted index. Also, after stock-split, stock prices decrease which leads to lower price-weighted index. Welcome for any comment. [em01] Sorry, I cann't agree with you too. The Shwester notes fail to include a concept called 'divisor'. To get the price-weighted index, sum up the prices of the stocks in the index and then divide that number by a divisor. Remember, this divisor is not simply the number of different stocks included in the index and should be changded to maintain the continuity of the index bafore and after a stock split. How can you emagine DJI changes a lot just because a stock split of a single stock? This content is in the Reading Material 56, not the notes. hehe, so i chose the unchanged answer. |