A dramatic reversal in the Nasdaq-100 on Thursday carried PowerShares QQQ (NasdaqGM: QQQ) to a gain but top holding Oracle (NasdaqGS: ORCL) fell 5% after hours following its earnings report.

The Nasdaq exchange traded fund closed with a nearly 1% advance for the session thanks to a late-day bounce and strength in Apple (NasdaqGS: AAPL). [Nasdaq Hangs Tough]

The S&P 500 finished in the red Thursday but managed to hold at a key technical level. Talk of a new bailout for Greece helped fuel an afternoon ramp in stocks. [Stock ETFs Back for Test of 200-Day Average]

The dollar strengthened on Thursday, one day after the Federal Reserve cut its economic forecast. [Dollar ETF Could be ‘Tell’]

An exchange traded fund tracking the closely-watched Dow Jones Transportation Average has been turned away this week at its 50-day moving average, despite strength in top holding FedEx (NYSE: FDX). [Transportation ETF Rolls Over]

Oil prices fell about 3% on Thursday after the International Energy Agency said it would release stocks from its strategic oil reserve. [Energy ETFs Hit Oil Slick]

Precious metals ETFs also lost ground in Thursday’s volatile market. SPDR Gold Shares (NYSEArca: GLD) fell about 2% while iShares Silver Trust (NYSEArca: SLV) retreated 3%.

U.S. Oil Fund (NYSEArca: USO)