Chart of the Day – 10.18.2008***


CHART OF THE DAY….A couple of weeks ago I quit watching the stock market’s gyrations during the day because it was obvious that they didn’t really mean anything. Up, down, whatever: the events of the final hour, from 3 pm to 4 pm were all that mattered, wiping out huge gains in an instant or turning small losses into disasters.

Now comes a nice chart via Zubin Jelveh that demonstrates the point graphically. As you can see, normally the stock market moves anywhere from a quarter of a percent to one percent in the final hour of the day. That’s roughly the same as the other six hours the market is open. But since mid-September? Final-hour volatility jumped to 2%, and then earlier this month to a high of 6%. That’s as much movement as the entire rest of the day. So if you’re the nervous sort, give yourself a break and take your eyes off the hourly movements of the Dow. Just check in at 4 pm and be done with it.

Need some more charts? Ezra Klein has a nice one showing that sometimes placebos work just as well as surgery. (With a followup here.) Maybe those Christian Scientists are on to something after all?

FACT:

Mother Jones was founded as a nonprofit in 1976 because we knew corporations and the wealthy wouldn't fund the type of hard-hitting journalism we set out to do.

Today, reader support makes up about two-thirds of our budget, allows us to dig deep on stories that matter, and lets us keep our reporting free for everyone. If you value what you get from Mother Jones, please join us with a tax-deductible donation today so we can keep on doing the type of journalism 2019 demands.

We Recommend

Latest

Sign up for our newsletters

Subscribe and we'll send Mother Jones straight to your inbox.

Get our award-winning magazine

Save big on a full year of investigations, ideas, and insights.

Subscribe

Support our journalism

Help Mother Jones' reporters dig deep with a tax-deductible donation.

Donate