# Optimism saves users $1B in fees, raises $150M in Series B
” Optimism saves users $1B in fees, raises $150M in Series B “ Popular Ethereum scaling solution Optimism has announced a $150 million Series B funding round co-led by Andreessen Horowitz (a16z) and Paradigm at a total valuation of $1.65 billion. According to a blog post from Optimism, the Layer 2 (L2) solution has saved…