Goldman Sachs global markets managing director and tactical expert Scott Rubner believes that strong capital flows from corporate buybacks and systematic investment strategies are expected to drive the S & P 500 index to a record high this week, further strengthening investor fear of missing out (FOMO). "We estimate unemotional demand from machines and businesses at $17 billion a day this week, with a very favourable three-week equity trading window through September 16," said Mr. Rubner. Goldman's simulations of the coming week for commodity trading advisors (CTAs) show that these funds are likely to buy stocks regardless of how the market trades. In addition, Goldman's corporate repo unit saw its biggest demand of the year last week, more than double the same period in 2023, and Mr. Rubner expects strong buying ahead of the September 13 quarterly quiet period.