In 2025, ultra-high-net-worth families navigated a year defined by policy uncertainty, market volatility, and an intensified focus on after-tax outcomes. Tom Bratkovich, chief investment officer at ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Photonic crystals are periodic optical structures that can control the flow of light. Multiple reflections from surfaces separated by a distance similar to the wavelength prevent an optical beam from ...

With a background in education and a fascination with finance, Emily Batdorf writes approachable content for consumers who want to deepen their understanding of personal finance topics. She loves ...