No matter the market, there will always be losers -- a few lagging disappointments holding back a Wall Street rally. The S&P 500 (INDEXSP:.INX) may have ended the day flat, but there were more than enough downtrodden stocks today to make investors pull their hair out in frustration. Here are the three worst stocks today that you need to know about -- from tech to materials, these stocks put a dent in Wall Street's Thursday.

Dips, dives, and drops Materials and mining firm Cliffs Natural Resources Inc (NYSE:CLF) ranked as one of yesterday's three top losers, and it's back up to bat today. Shares of the company fell 3.2% a day after falling the same amount on Wednesday. Cliffs announced today that it will take a $2 billion charge  in its fourth-quarter numbers, the largest of which is a charge of around $1 billion for its 2011 purchase of Consolidated Thompson Iron Mines for just over $5 billion.

While analysts pointed out that the charge shouldn't come as a surprise, given a delay in expanding a Thompson's Bloom Lake mine, it's still a hefty financial hit.

Don't go very far, because we don't even have to leave metals companies to find another big loser on the day. United States Steel Corporation (NYSE:X) shares fell 3% today, the latest line of hits in what's become an ugly start to the year for this century-old company. With little news out, investors are probably skittish about U.S. Steel's impending earnings release next Tuesday. The company already warned late last year that the global economic slowdown, coupled with lagging demand in China's infrastructure market, will negatively affect fourth-quarter results. U.S. Steel investors now have to hope the American housing rebound and Chinese economic growth manage to stave off any further declines.