Opendoor’s meme-fueled rally is partly backed by subtle macroenvironment relief and a strategic shift. Read why I think OPEN ...

Scott Rubner, Citadel Securities' new head of equity and equity derivatives strategy, expects "robust" retail trading flows ...

He's a regular tracker of volatility control funds - "vol control" - or strategies used increasingly by big institutions such as pensions and longer-term endowment funds to keep risk on an even keel.