US STOCKS-Wall St falls as U.S. fiscal impasse eludes solution
* Debt ceiling deadline draws closer with no signs of progress
* Volatility index rises to highest since June
* BlackBerry shares up on interest from strategic buyers
* Indexes off: Dow 0.6 pct, S&P 500 0.4 pct, Nasdaq 0.6 pct
By Ryan Vlastelica
NEW YORK, Oct 7 (Reuters) - U.S. stocks fell on Monday, extending two weeks of losses, as a lack of progress in ending the partial U.S. government shutdown or the debt-ceiling standoff kept investors nervous.
Major indexes came off their morning lows in a volatile session, but the S&P 500 was on track for its 10th decline in the past 13 sessions.
The CBOE Volatility index, a measure of investor anxiety, jumped 10 percent to 18.45, its highest since late June. The VIX has gained for the past three weeks, and is up 41 percent over that period.
The deadline to increase the U.S. borrowing authority or risk default is Oct. 17, with Congress deadlocked and no end in sight. Continued...