Here are the biggest calls on Wall Street on Tuesday: William Blair initiates Thermo Fisher as outperform The investment bank said it's "time to buy the premier partner in life sciences." "The synergies created by Thermo's best-in-class service offerings have solidified its position as the partner of choice for the biopharma industry." Loop reiterates Amazon as buy Loop raised its price target on Amazon citing strength in ecommerce and Amazon Web Services. "We are updating our estimates with higher revenue and profit generation from the ecommerce businesses and lower profits from AWS. We have increased our PT to $300 from $290 previous on the same sum-of-parts methodology." Bank of America reiterates Meta Platforms as buy Bank of America says Meta is well positioned for AI. "We continue to

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