Technology shares are higher in mid-day trading while LinkedIn (LNKD) doubles in value following its initial public offering, providing lift to the sector. LinkedIn shares are now up 143% in the first day of trading for the professional networking site, harkening back to the big IPOs of the dot-com boom in the late '90s. Meanwhile, Semiconductor Manufacturing International (SMI), today, reported higher Q1 earnings, with net income attributable to holders of ordinary shares of $10.2 mln, or diluted EPS per ADS of $0.02, compared to the prior-year quarter’s net loss of 181.95 mln, or $0.41.