The DJIA is getting hammered, while the COMP is in the red year-to-date
The
Dow Jones Industrial Average (DJIA) has given back more than 250 points, amid lingering
Fed-related uncertainty and a sell-off among commodities. Stocks are also taking a
cue from their European peers, where automakers weighed on indexes in the wake of the
Volkswagen emission scandal. The
Nasdaq Composite (COMP), meanwhile, is once again
taking the biggest hit, and is in danger of giving up its year-to-date lead.
Continue reading for more on today's market -- and don't miss:

Among the stocks with notable call activity is Biogen Inc (NASDAQ:BIIB). The biotech sector was hammered yesterday after presidential candidate Hillary Clinton vowed to take on price gouging. The shares of BIIB are down another 1.7% at $292.20, but intraday call volume is running at 1.8 times the norm.
One of the leading gainers on the Big Board is Weatherford International Plc (NYSE:WFT), after the company decided not to proceed with its public offerings shares and notes. The oilfield services provider has surged 8% to $9.08.
One of the top losers on the NYSE is Potash Corp./Saskatchewan (USA) (NYSE:POT). Shares of the fertilizer concern earlier hit a six-year low of $21.98, and were last seen 6.7% lower at $22.11, after sector peer MOS cut guidance on weak demand.

The CBOE Volatility Index (VIX) has added 3 points, or 14.9%, in what could be a sign of things to come.
Today's put/call volume ratio on the SPDR S&P 500 ETF Trust (SPY) is 2.04, with puts more than doubling calls. The SPY was last seen 3.1 points, or 1.6%, lower at $193.36.