Weekly Commentary: August 23, 2026
⚠️ Not financial advice. This is auto-generated each week by Anthropic's Claude (an AI model). Brian Beals is not a registered investment advisor, and Anthropic's Claude is not licensed to provide personalized financial advice. The screener is a research and methodology demo, not a recommendation system. Past performance does not predict future results. Do your own research before making any investment decisions.
By Brian Beals. Methodology and code: github.com/brianbeals/sector-rotation-screener. Commentary generated by Anthropic's Claude (claude-opus-4-8).
What the screen said this week
The screen classified the current environment as mid-cycle. That call comes from industrial production (INDPRO) growing at +1.1% year over year, which sits inside the 0.0% to 4.0% band the rule set treats as steady expansion, combined with a positive yield curve reading of +0.50 (longer-term rates above shorter-term rates). Together the rule set reads this as steady expansion rather than early recovery or late-cycle stress.
Technology (XLK) and Communications (XLC) topped the composite at 79.6 and 75.0, both crossing the Buy threshold of 65. In both cases the driver is cycle fit, which scored a maximum 100.0 for each and carries the heaviest weight at 40%. XLK also had solid relative strength (RS 68.5), while XLC's RS was middling (48.5), so XLK's Buy rests on a broader base. Note that XLC's seasonality score is flagged thin sample, meaning fewer historical weeks feed that number.
There were no Watch signals this week. A Watch requires cycle fit of at least 80 alongside relative strength under 45, and no sector met both conditions at once. The lone Avoid was Utilities (XLU) at 28.9, dragged down by the weakest relative strength on the board (6.5) and a 3-month RS of -7.71%.
Things worth noticing
Relative strength and cycle fit diverge in interesting places. Healthcare (XLV) posted the strongest 3-month move on the board at +15.02% and decent RS (60.6), yet its composite only reached 50.7 because its cycle fit (35.0) is low for this phase. The rule set's heavy cycle weighting holds it back despite the price strength.
The reverse shows in the top names. XLK and XLC both scored perfect cycle fit but had negative 3-month RS (-0.60% and -7.16%), so a strong cycle score is currently doing the heavy lifting on the two Buy signals even as recent price action has been soft.
Worth flagging: the backtest since May 2011 shows the strategy at +619.57% versus SPY at +626.89%, so this rule set did not beat SPY net of the 1 bps trading cost assumption. Buy-signal excess forward return is a thin +0.03%, with the Buy sector beating SPY only 50% of the time.
Methodology reminder
The composite is a weighted sum: Seasonality 25%, Cycle Fit 40%, and Relative Strength 35%. The backtest controls for lookahead bias by using FRED ALFRED vintages, meaning it uses the macro data as it actually appeared at each historical date rather than later revisions. The backtest figure is a property of this specific rule set over this window, not a forecast of anything.