Stock Market Update

[BRIEFING.COM] The major indices have weakened in the last half hour or so, with the Dow, Nasdaq, and S&P 500 sliding to session lows. The move was hastened by some selling in the mega-cap space.

Alphabet (GOOG 165.04, -2.83, -1.7%), which is holding its I/O event, is on the defensive, and Tesla (TSLA 345.89, +3.80, +1.1%) has dropped from session highs in a move that coincided with Elon Musk doing an interview with CNBC's David Faber.

The latter is likely more of a sell-the-news type response since Mr. Musk didn't say anything that could be interpreted as decidedly negative. In fact, he said Tesla is starting to see a rebound in its auto business and that Tesla will have fully autonomous vehicles on the roads of Austin, TX, by the end of June.

The Vanguard Mega-Cap Growth ETF (MGK) is down 1.0%.