Snap Inc. is preparing for the biggest technology IPO since Alibaba (BABA - Get Report) in 2014. The parent of Snapchat has set its valuation at the low end of expectations. The Wall Street Journal says it is valued at $19.5 billion to $22.2 billion. At that range, it puts Snap shares at $14 to $16. Boeing (BA - Get Report) workers rejected the union at its South Carolina plant. It was not a close vote, 74% cast ballots against it according to the Post and Courier newspaper. This is the second time the South Carolina Boeing workers have rejected being a part of a union. The workers at that plant make the Dreamliner plane. Merck (MRK - Get Report) is the latest drug company to try and fail to come up with a drug to treat Alzheimer's disease. It has chosen to stop trials of its once promising treatment. Merck's setback comes just 3 months after Eli Lilly's (LLY - Get Report) Alzheimer's treatment failed in a trial. Biogen still has a drug being tested to treat the devastating disease.