The Dow Jones Industrial Average (DJINDICES:^DJI) tapered off 0.24% Monday to end down 37 points at 15,522. The S&P 500 (SNPINDEX:^GSPC) took an even larger dip, dropping 0.37% on tough times for energy and financial stocks. After last week's upward trend and all-time high for the Dow, this week has started off decidedly slower.

^DJI Chart

^DJI data by YCharts.

Although Caterpillar (NYSE:CAT) reported lackluster earnings last week, it's not out of the limelight yet. The company thinks its stock is cheap, and it announced a $1 billion buyback program yesterday that pushed shares up 1.2%. Shares are still down 2.9% from last Monday, but a billion dollars is a lot to bet on a bluff.

Management remains optimistic, and long-term investors might want to explore Caterpillar more before throwing it to the bears.

Macro movers
The housing market seems to be unstoppable, with pending home sales beating expectations yesterday and other metrics at all-time highs. Today's S&P/Case-Shiller home price index will add another data point to the real-estate world, and it could support or refute claims of a housing "supply squeeze."

July's consumer confidence report hits the press at 10 a.m. EDT today, and analysts are expecting a slight drop from June's recovery high. Investors will need to keep a close watch on this indicator to see whether the economy's spenders are staying positive in the dog days of summer.

Never-ending earnings
(NYSE:HLF) reported earnings after market close yesterday, beating estimates on both the top and bottom lines. Sales clocked in at $1.22 billion, up 18% from Q2 2012 and $40 million above analyst estimates. Herbalife blew away bottom-line expectations, reporting $1.41 in adjusted EPS compared to predictions of $1.18 per share. Shares headed 3.6% higher during the day as investors hoped for the best, and they're up an additional 6.5% in premarket trading. Herbalife shares have been on a rollercoaster ride over the last year, pushed and pulled by iconic investors Carl Icahn and Bill Ackman. Herbalife CEO Michael Johnson is ignoring both the bull and the bear, pointing instead to "the success that our products and distribution model are having in markets around the world helping to mitigate the adverse effects of the obesity epidemic."

HLF Chart

HLF data by YCharts.

Riverbed Technology (NASDAQ:RVBD.DL) reports earnings after market close today, just one day after Wunderlich Securities downgraded the stock to a "hold" amid overvaluation fears. The company has enjoyed an average 16% annual growth rate over the past five years, but the last two years have left latecomer Riverbed investors up the creek without a paddle.

RVBD Chart

RVBD data by YCharts.

Lazard analyst Ryan Hutchinson still thinks Riverbed is still worth its weight, and he expects its recent OPNET acquisition to help boost synergies and cut costs. Analysts are expecting 30% top-line growth but are willing to let Riverbed by with a 4.3% bottom-line drop.

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