Tel Aviv stocks finished Wednesday with a negative bias on sorry financial statements published after the bell yesterday and during trade today. Bank Leumi, for one, took a beating after disclosing an 80% drop in its net profit. But market players insist that the key influence on the market was speculators preparing the ground for the expiry of options on the Maof-25 index Thursday morning. Given the low volume of trade during the summer, it will be relatively easy to manipulate the indices, the sources pointed out. The leading indices spent the session gradually inching down, with the Maof-25 index ending off 0.7% and the Tel Aviv-100 index losing 0.6%. The TelTech-15 index also fell by 0.6%. The total volume of trade was slim at NIS 179 million.