The CNN Money Fear and Greed index showed a decline in overall sentiment among U.S. investors on Tuesday.
U.S. stocks closed lower on Tuesday after Moody's downgraded the credit ratings of several US banks.
Needham cut the price target for Silicom Ltd. (NASDAQ: SILC) from $58 to $35. Needham analyst Alex Henderson maintained a Buy rating. Silicom shares fell 0.1% to $29.41 in pre-market trading.