The S&P 500 closed within reach of its all-time high again as crude oil settled at its highest level since last summer on Wednesday. The benchmark index has closed at 2016 highs for the past three days. Lending Club (LC) - Get Report had a rocky day of trading after FBR & Co. analysts downgraded the company's shares to MARKET PERFORM from OUTPERFORM. The firm raised concerns over the peer-to-peer lender's ability to originate loans after recent scrutiny into operations. AK Steel (AKS) - Get Report surged after Credit Suisse released a bullish note on the U.S. steel market. Analysts upgraded AK to OUTPERFORM from UNDERPERFORM based on improving metal prices. Morgan Stanley (MS) - Get Report shares were active after the SEC leveled a $1 million fine against the bank for allegedly failing to protect sensitive customer information. Morgan Stanley agreed to the settlement, though declined to admit wrongdoing. TheStreet's Keris Lahiff has details from Wall Street.