to your HTML Add class="sortable" to any table you'd like to make sortable Click on the headers to sort Thanks to many, many people for contributions and suggestions. Licenced as X11: http://www.kryogenix.org/code/browser/licence.html This basically means: do what you want with it. */ var stIsIE = /*@cc_on!@*/false; sorttable = { init: function() { // quit if this function has already been called if (arguments.callee.done) return; // flag this function so we don't do the same thing twice arguments.callee.done = true; // kill the timer if (_timer) clearInterval(_timer); if (!document.createElement || !document.getElementsByTagName) return; sorttable.DATE_RE = /^(\d\d?)[\/\.-](\d\d?)[\/\.-]((\d\d)?\d\d)$/; forEach(document.getElementsByTagName('table'), function(table) { if (table.className.search(/\bsortable\b/) != -1) { sorttable.makeSortable(table); } }); }, makeSortable: function(table) { if (table.getElementsByTagName('thead').length == 0) { // table doesn't have a tHead. Since it should have, create one and // put the first table row in it. the = document.createElement('thead'); the.appendChild(table.rows[0]); table.insertBefore(the,table.firstChild); } // Safari doesn't support table.tHead, sigh if (table.tHead == null) table.tHead = table.getElementsByTagName('thead')[0]; if (table.tHead.rows.length != 1) return; // can't cope with two header rows // Sorttable v1 put rows with a class of "sortbottom" at the bottom (as // "total" rows, for example). This is B&R, since what you're supposed // to do is put them in a tfoot. So, if there are sortbottom rows, // for backwards compatibility, move them to tfoot (creating it if needed). sortbottomrows = []; for (var i=0; i
Not long ago, we mined our S&P 500 data to find the five worst month-long periods ever for investors in the stock market. And now, for the sake of balance, we're extracting the five best month-long periods ever for the S&P 500.
As we noted previously, we can't precisely answer which calendar month since January 1871 was the worst given our S&P 500 data, since the value we have for each month is the average of the closing value of the S&P 500 index on every trading day during the course of that month. Consequently, our data doesn't include what value it started out at in the beginning of the month of interest, what highs or lows it may have hit during the course of that month, how long it was at any given level, or where it ended up on the last trading day of the month.
But, what we do have in the average value of the S&P 500 index for each month over its entire history since 1871 allows us to measure its general performance between any two months, even if just one month apart.
So, we scanned our average monthly data to find the five best average month-long investing periods captured by our data, which we've summarized in the table below. As before, we're looking purely at the value of the index itself, without considering factors that would influence an investor's actual returns, such as inflation, reinvestment of dividends, taxes, commissions or other transaction fees:
| The Five Best Months for the S&P 500 Index Value | ||||
|---|---|---|---|---|
| Starting Month | Ending Month | Starting Index Value | Ending Index Value | Percentage Gain |
| July 1932 | August 1932 | 5.01 | 7.53 | +50.3% |
| April 1933 | May 1933 | 6.23 | 6.89 | +28.7% |
| June 1938 | July 1938 | 10.21 | 12.24 | +19.9% |
| May 1933 | June 1933 | 8.87 | 10.39 | +17.1% |
| August 1982 | September 1982 | 109.70 | 122.40 | +11.6% |
As we've noted elsewhere in looking at the best and worst case returns on investments in the S&P 500 for periods of time ranging from 1 through 50 years long, the only consistent factor that shared by the best returns in the stock market index is that these periods tend to coincide with the end of the worst periods of time for investing in the stock market!
Labels: best case, investing, SP 500
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The S&P 500 at Your Fingertips
Mapping S&P 500 Performance, Since 1871
Should You Trade In Your Gas Guzzler?
What Are the Chances Your Marriage Will Last?
Reckoning the Odds of Recession
Your 2009 Paycheck
Tipping Around the World
Revisiting the Lottery
Estimating Your Life Expectancy
Connecting the Dots for Personal Income Taxes
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On the Moneyed Midways
A Lot, But Not All, of Our Tools
Political Calculations' Recession Probability Track shows the probability that the U.S. economy will be in recession 12 months from the indicated date (shown in red) while revealing the probability trend over the past four years.
Previously, the probability of recession peaked at 50% on 4 April 2007, which means that March-April 2008 was the most likely period in which the NBER would have found the U.S. to be in recession.
As it happens, they almost did. The NBER instead chose December 2007 as the beginning month of the most recent recession (we had found a 46% probability for a recession beginning in that month!)
Political Calculations is also the online home of On the Moneyed Midways (aka OMM), a review of the best posts contributed to the week's best business and money-related blog carnivals. More than that, we also name one post in each edition as being The Best Post of the Week, Anywhere! and at the end of each year, we name The Best Post of the Year, Anywhere! as well as identifying the best blogs we found during the course of the year!
The link below will take you to the running index containing our most recent back issues (you can easily navigate the index to find older editions.)
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