Portfolio rebalancing could offset the turn-of-the-month effect
Two major market-flow drivers are set to collide next week. The first is the turn-of-the-month (TOM) effect, a well-documented seasonal pattern linked to systematic inflows from passive investment strategies and regular fund contributions.
The second is half-year portfolio rebalancing. Many asset managers will need to adjust allocations to remain aligned with investment mandates. JPMorgan estimates that this could drive roughly $165bn of equity selling, in what would be one of the largest rotations into fixed income in recent years. If those rebalancing flows outweigh the usual TOM-related inflows, the seasonal pattern could lose effectiveness or be neutralised altogether.
Nasdaq 100 / iShares 20+ Year Treasury Bond ETF (TLT), weekly chart with stochastic
Sources: TradingView, Luis Ruiz
A compressed week with several key catalysts
The clash between these flow dynamics comes during a particularly busy macroeconomic week.
The Independence Day holiday means Wall Street's trading week ends on Thursday, compressing several major releases into four sessions. Investors will be watching Job Openings and Labor Turnover Survey, the ADP employment report, ISM manufacturing data and, most importantly, the official non-farm payrolls report, which will be released on Thursday rather than Friday.
