MarketWatch’s daily rundown of shares making sizable moves in the U.S. stock market.

Thirty-two years ago, the volcano in the state of Washington blew up. It now appears to be the social-networking giant’s turn, writes Rex Crum.

U.S. stocks were on track for weekly losses following Facebook Inc.’s debut on Wall Street Friday and amid concerns about global growth and Greece’s potential exit from the euro.

Barclays Capital’s book-length Global Technology Outlook devotes a few pages to Israeli innovators, and the firm particularly likes four companies — Ceva, EZchip, Mellanox and Nice — tied to trends like big-data storage and cloud computing, or delivering software and services over the Net.

--Footwear company posts surprise increase in sales --Same-store sales at main discount chain up 2.5%, snapping streak of fading sales --CEO says the quarter is "very early read" on restructuring efforts (Updates throughout and adds comments from chief executive) Brown Shoe Co. BWS landed on its feet in its fiscal first quarter, logging a surprise increase in sales as it hit the halfway point in a major overhaul of its operations.

U.S. stocks nearly unchanged after Facebook Inc.’s trading debut and ongoing uncertainty about how Europe’s debt troubles will play out.