On March 9, 2009 the Dow Jones Industrial Average (DJIA) closed at 6,547.05.在2009年3月9日，道琼斯工业平均指数（DJIA）收于6,547.05。
Yesterday, November 10, 2009, the DJIA closed at 10,246.97.昨天，2009年11月10日，道指收于10,246.97。 [1] [1]
This rise represents a simple return of approximately 56.51%.这是一个上升约56.51％简单的回报。
On an annualized compounded basis the return is approximately 93.86%.再加上一年度的基础上回报约为93.86％。 [2] [2]
If the DJIA continues to rise at this rate then on this day next year it should open at approximately 19,864.98.如果继续上升，道指在这一天，这个比率然后明年应该开放约为19,864.98。
Just thought you may want to know.只是觉得你可能想知道。
PS: After reading some inane comments I just had to write a postscript. 西蒙兹：看了一些我刚写了后记空虚的意见。 There is a point to this post: the rate is unsustainable. 有一个对这个职位一点：速度是不可持续的。 I thought that was obvious. 我认为这是显而易见的。 Some people apparently didn't. 有些人显然没有。 Unbelievable. No wonder bubbles happen. 令人难以置信的。难怪气泡发生。
[1] [1] From Yahoo Finance historical price database.从雅虎财经历史价格数据库。
[2] [2] See看见 http://en.wikipedia.org/wiki/Compound_interest http://en.wikipedia.org/wiki/Compound_interest . 。 I used the 3rd version of the simplified calculation and solved for i.我使用的简化计算第三版本和岛解决 There are 247 calendar days between 3/9/09 & 11/10/09 including the last day.有247间09/03/09和11/10/09的最后一天，包括日历日。 See看见 http://www.timeanddate.com/date/duration.html http://www.timeanddate.com/date/duration.html
