CORRECTED-US STOCKS-Wall St slides on lower crude prices, options expiry (Dec. 18)
(Corrects Dec. 18 item to change name of firm to Polaris Greystone Financial Group from Polaris Wealth Advisers in paragraph 4)
* S&P, Dow on track for worst 2-day run since Nov. 1
* Boeing biggest drag on Dow; Apple weighs on S&P, Nasdaq
* Disney falls after rating cut
* Indexes down: Dow 1.61 pct, S&P 1.33 pct, Nasdaq 1.24 pct
By Abhiram Nandakumar
Dec 18 (Reuters) - The Dow Jones industrial average shed nearly 300 points as crude prices headed for their third straight weekly loss, and stock and index options contracts expired.
The Dow and the S&P 500 were on track for their worst two-day run since Nov. 1, and the Nasdaq since mid-November, almost erasing gains from the three-day rally up to the Federal Reserve's interest rate hike on Wednesday.
Volatility was slightly higher than usual on account of "quadruple witching" - the expiry of options on stocks and indexes as well as futures on indexes and single stocks. Continuación...