Benzinga's Top Pre-Market Losers

SIGA Technologies Inc SIGA dipped 9.01% to $11.01 in the pre-market session. SIGA's PEG ratio is 35.91. ProShares UltraPro Short QQQ SQQQ dropped 2.15% to $28.20 in the pre-market trading. Ness Technologies Inc NSTC moved down 0.33% to $7.57 in the pre-market session. NSTC agreed to be purchased by an affiliate of Citigroup Inc's C venture capital arm for $307 million in cash. Carnival Corporation CCL fell 0.20% to $35.20 in the pre-market session. CCL is scheduled to report its second-quarter results and updated full-year guidance on June 21. Read more from Benzinga's Markets.