1In a bubble regime, momentum keeps paying while mean-reversion trades get burnt
Andy Constan of Damped Spring Advisors, speaking on Excess Returns, places the current AI and tech cycle toward the late end of a bubble that began in late 2022, when a Fed pause coincided with ChatGPT and the Microsoft-OpenAI deal. He is explicit that this is not a top call. His phase map runs from change, to a normal bull market, to escalation — the stage where a central bank over-reacts, his examples being LTCM in 1998 and the SVB episode — then to parabolic, then to the pop. The parabolic phase is the one he thinks we are in.
The mechanics are the usable part. Inside that phase momentum factors work, while mean-reversion and relative-value trades get burnt, because the expensive asset keeps getting more expensive. His second-order point is that a manager's own record misleads here: a track record assembled outside bubble regimes will overstate the alpha available inside one, and policymakers get harder to predict at the same time.
His response is a smaller book rather than a short. He caps maximum exposure and cuts the cap in a bubble — 130% comes down to 110% — while never dropping below 50% long, on the argument that leverage tends to get added exactly when realised volatility is at its lowest, which is the worst available moment to add it. He rebalances less while a trend runs, since declining to rebalance carries a positive expected return in a trending market. And he will not short the top. The plan is to map where the contagion lands after a pop and to hold dry powder for it, because the alpha is on the far side, for the holders who are not panicking.
The allocation follows the same logic. He owns a diversified market portfolio — gold, commodities, bonds and TIPS alongside a smaller equity weight — and argues a stock-only book is the least diversified bet available, one that needs growth to beat expectations rather than merely meet them.
Two caveats. This was a single 56-minute process interview and the day's only long-form source, so the regime reading rests on one voice rather than several. And note what a diagnosis this bearish does not produce: no sell order anywhere in it. On his framework the live decision is how much to hold, not which way to lean.
2The late-cycle signals are in the IPO queue and the single-name tape, not in the index level
At the index level almost nothing happened. Yahoo Finance's pre-market wrap had S&P 500 futures at 7,493.25, up 0.36%, with Nasdaq futures up 0.62%, the Dow up 0.31% and the Russell up 0.35%, and VIX at 16.74. Underneath that calm the same page listed as the top gainer at +33.37% and as the top loser at −20.02% — more than 53 percentage points between best and worst in one session — with up 12.43% on the same quantum enthusiasm.
The rest of the tape was still digesting Wednesday's print. Nvidia itself was the most active name while trading down 1.77% intraday, even as the memory cohort it pulled along, among them, kept rising (TradingKey, via Google News). On CNBC, Jim Cramer ran segments on a legacy tech name as the ultimate quantum play and on Honeywell's quantum connection — the theme reaching for second-order names, which is usually a later stage than the first-order rally. sits on the other side of the same dispersion: down roughly 50% year to date, and now a valuation argument rather than a growth one.
The IPO queue is where the late-cycle read is clearest, and it is four separate stories in a single day's aggregated feed. Retail access to SpaceX is being opened up while its insiders sell earlier than usual. SpaceX and OpenAI would, on CNBC's arithmetic, leapfrog Berkshire Hathaway in market value on their first day of trading. Oura has filed confidentially. And Reuters reports OpenAI aiming for a speedy listing. Alongside it, Q1 disclosures showed billionaire families adding semiconductor and energy exposure during the Iran war, and UBS Global Wealth raised its S&P 500 target citing strong consumer spending and AI demand.
None of this was forced by the macro calendar. Flash PMIs held steady in May (Bloomberg) and no major scheduled US release landed. So the dispersion was idiosyncratic, which is exactly the environment described in the first section — the expensive outrunning the cheap, with the index level telling you the least about it.
3A summer oil squeeze is the shared risk behind both the energy and the consumer outlook
The IEA's chief warned that oil could enter a red zone by July as inventories dwindle ahead of the summer travel season (CNBC, via Finnhub). The supply story behind that warning is the Iran war, now fought partly through friction rather than closure: checkpoints and levied fees around the Strait of Hormuz islands, President Trump saying he may hit harder — or not — and a UAE bypass pipeline reported 50% complete. The knock-ons in the same feed run wide: US farmers absorbing the pain, European consumers and airlines exposed, and the Bank of England saying it has time to gauge the impact before moving. Defense demand shows in the tape too, with rising on continuing Pentagon orders for its Stalker drone.
The same commodity reaches the consumer from the other end. fell pre-market after a disappointing Q2 outlook, its CFO flagging inflation, and CNBC's Investing Club used Walmart's gas-price warning to frame its retail outlook. That is the join worth watching: the weeks the IEA is pointing at are the weeks Walmart is guiding into.
The evidence does not run one way. beat on Q1 FY27 with broad comparable-sales gains, higher transactions and improved margins, and UBS lifted its S&P 500 target on strong consumer spending. So the consumer signal splits by retailer — one warning on the cost of driving, the other reporting a healthier basket — and what settles it is the season itself, not either print.
Friday's calendar tests the consumer, not the AI trade
Seven US companies report and only two are liquid. , BJ's Wholesale, is expected at $1.06 of earnings on $5.6bn of revenue before the open — a club-format read on the same consumer Walmart has just warned about. , Booz Allen, is expected at $1.35 on $2.9bn, the government-consulting and defense read into a week when the Iran war ran through oil, agriculture and European demand. The other five are shipping, tanker and micro-cap names. No major scheduled US macro release lands beside them, so nothing on this calendar tests the bubble-regime question above; the consumer question gets a partial answer before the bell.
