Tech stocks have come under increased pressure in recent trade. The sector had traded with only a fractional loss in the first few minutes of trade, but it has since fallen to a 0.5% loss.Weakness among tech stocks is relatively broad, but heavyweight Apple (AAPL 342.00, -2.51) is having one of the most adverse impacts on the space. Semiconductor stocks are also contributing to the sector's slide; they are collectively down 0.7%.Advancing Sectors: Materials (+0.5%), Health Care (+0.3%), Energy (+0.3%), Telecom (+0.1%), Financials (+0.1%)Unchanged: Consumer StaplesDeclining Sectors: Tech (-0.5%), Industrials (-0.2%), Utilities (-0.1%), Consumer Discretionary (-0.1%)