On the losing side, however, First Aviation Services ( FAVS) plunged 23% after the Westport, Conn., firm decided to voluntarily delist itself from the Nasdaq on July 16. The company expects "financially significant" savings from the change, saying "the incremental cost of compliance with Sarbanes Oxley and other reporting requirements does not provide any discernable benefit to the company and cannot be justified." Shares were off 61 cents at $2.04. Tefron ( TFR) also traded lower after the Israel-based apparel maker estimated second-quarter will decline sharply from last year to around $40.5 million. The company also said it now expects 2007 profitability to be "significantly lower" than that of 2006 due to the waning revenue, among other factors. Shares were sinking $1.37, or 15.1%, to $7.71.