Castle Securities analyst Scott Rubner says year-to-date U.S. retail investors have been buying the dip at a record pace. Rubner’s data show retail buy volume on S&P 500 down days was about 3.5x the daily average; buy-the-dip has been retail investor

2026-06-30

Castle Securities analyst Scott Rubner says year-to-date U.S. retail investors have been buying the dip at a record pace. Rubner’s data show retail buy volume on S&P 500 down days was about 3.5x the daily average; buy-the-dip has been retail investors’ preferred strategy in 1H 2026. This is the strongest dip-buying since the firm began tracking the data in 2020 and exceeds the peak seen during the 2021 meme-stock episode.