Dow Jones Industrial Average Extends Slide

With little in the way of fresh economic drivers, the Dow Jones Industrial Average (DJIA) is extending Friday's slide, following its European counterparts into the red. Two-thirds of the Dow's components are south of breakeven, including Apple Inc. (NASDAQ:AAPL), which kicks off its Worldwide Developers Conference today. Against this backdrop, the Dow and S&P 500 Index (SPX) continue to back down from key levels.

Continue reading for more on today's market -- and don't miss:

• The news -- and subsequent analyst reaction -- helping Tesla Motors Inc (NASDAQ:TSLA) buck the trend lower.
• The semiconductor stock enjoying a Soros-inspired boost to fresh highs, and the airline issue swimming in the red after a CEO warning.
• Plus ... Checking in on the CBOE Volatility Index (VIX), the SPDR S&P 500 ETF Trust (SPY), and other noteworthy stats at midday.

Among the stocks with notable call volume is Cyberark Software Ltd (NASDAQ:CYBR). The cybersecurity sector is extending Friday's rally, and CYBR is fresh off a record high of $71.35. At last check, the equity was 6.7% higher at $70.63, and calls are trading at four times the average intraday clip. Digging deeper, it looks like speculators are buying to open the June 70 call, gambling on even higher highs for CYBR in the near term.

One of the top gainers on the Nasdaq is drugmaker POZEN Inc. (NASDAQ:POZN). The security -- briefly halted earlier -- was last seen 26.1% higher at $9.52, and just touched a new annual high of $9.72, after the company agreed to buy Tribute Pharmaceuticals Canada and redomicile in tax-friendly Ireland. 

One of the top losers on the Big Board is MGM Resorts International (NYSE:MGM). The shares were last seen 5.1% lower at $19.25, as casino stocks tumble after Sterne Agee CRT said early June data out of Macau is less than inspiring. Furthermore, the brokerage firm said a potential smoking ban could hurt traffic even more. MGM has given up 10.1% in 2015, with rebound attempts stalling at its 200-day moving average. 

The CBOE Volatility Index (VIX) is up 0.9 point, or 6.6%, and is on pace for its first finish north of 15 in a month. 

Today's put/call volume ratio on the SPDR S&P 500 ETF Trust (SPY) is 1.77, with puts nearly doubling calls. SPY was last seen 0.7 point, or 0.3%, lower at $209.09.

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