Day trading does not occur in a vacuum, but in a market full of investors with different aspirations, hopes, and dreams. Each trade has a consequence that affects more than just individual buyers and sellers, but also the overall market, record keepers, fund managers, plan sponsors, and ultimately regulators responsible for ensuring the smooth operation of the markets for the good of all. Individuals looking to score through day trading their retirement portfolios may face resistance from goalkeepers protecting their turf and potentially standing in their way.