Although we don't believe in timing the market or panicking over market movements, we do like to keep an eye on big changes -- just in case they're material to our investing thesis.

Coming into today, many investors knew it would take perfect economic data to push the S&P 500 (SNPINDEX:^GSPC) to its eighth straight day of gains. However, mixed data was the best the U.S. economy could come up with.

On the bright side, weekly initial jobless claims declined by a monstrous 31,000 to a seasonally adjusted rate of just 292,000 -- the lowest level since 2006. Fewer jobless claims would imply more people are finding work, which would be good for consumer spending and may imply an ongoing lowering of the unemployment rate.

On the downside, the U.S. Treasury budget deficit of $147.9 billion for August was a hair more than economists had forecast, although it was down notably from the previous month. The U.S. government has certainly made remarkable headway in lowering its budget deficit through the first eight months of the year, but it's also clear that investors aren't willing to give an inch when it comes to wider-than-expected deficits.

All in all, investors weighed today's economic data and determined that the overwhelmingly strong jobs data could mean a Federal Reserve tapering of its quantitative easing program in the very near future. With the highly likely prospect of "easy money" coming to an end, the S&P 500 was pushed lower by 5.71 points (-0.34%) to close at 1,683.42.

Easily beating all other S&P 500 components to the upside today was drugstore Walgreen (NASDAQ:WBA), which rose 5% on the nose after being upgraded to a conviction buy from simply a buy at Goldman Sachs. Goldman believes that Walgreen has the potential for up to $1 billion in cost-savings due to its partnership with Alliance Boots overseas and anticipates that its $400 billion drug wholesale pact with AmerisourceBergen (NYSE:ABC) could add an additional 10% in savings over the life of the 10-year deal. One thing not really touched on by Goldman that investors will want to keep an eye on is consumer acceptance of Obamacare. Walgreen is among Obamacare's biggest promoters as an influx of newly insured individuals are going to need a pharmacy to fill their prescription, and why not Walgreen, right?

Wireless service provider Sprint (NYSE:S) added 2.9% on the day following news that its majority owner, SoftBank, signed a deal with 19 banks to refinance its $20 billion in debt used to acquire a majority stake in Sprint. According to reports, SoftBank will pay a rate of about 110 basis points higher than the Tokyo interbank-offered rate on the debt with a five-year maturity and 140 basis points higher on the debt maturing in seven years. Obviously, having SoftBank in good standing with its lenders and paying less in interest will be a positive for Sprint since SoftBank is its financier for its own upcoming 4G LTE buildout.

Finally, information management services provider Iron Mountain (NYSE:IRM) jumped 2.7% a day after declaring its upcoming quarterly dividend and following positive commentary by Piper Jaffray. For the upcoming quarter, Iron Mountain announced a cash dividend of $0.27 per share payable on October 15 to shareholders of record as of September 25. More importantly, Piper Jaffray notes that Iron Mountain's bid to become a real estate investment trust -- one that's been in limbo as of a few months ago and caused the stock to tank -- may not yet be dead. Based on Piper Jaffray's best guess, Iron Mountain will meet the definition of permanence with regard to its assets and should be allowed to convert to a REIT. The benefit for Iron Mountain, should this conversion go through, is preferential tax treatment while shareholders would receive at least 90% of profit in the form of a dividend.

Fool contributor Sean Williams has no material interest in any companies mentioned in this article. You can follow him on CAPS under the screen name TMFUltraLong, track every pick he makes under the screen name TrackUltraLong, and check him out on Twitter, where he goes by the handle @TMFUltraLong.

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