This Lead-Lag Report post is sponsored by Tuttle Capital Management

Every AI narrative of the last two years has been about the model. The next one is about what's standing in its way — and Tuttle Capital has mapped exactly where we believe the constraints are right now.

What We'll Cover

The GPU bottleneck is priced in — its window closed after roughly a 1,200% run and three years of consensus catching up. Here's where the AI bottlenecks are now.

• Memory (2023–today): High-Bandwidth Memory is the choke point behind every AI inference call. DRAM exports are up 265% year-on-year at cycle peak. Mid-stage — the supercycle is still running.
• Photonics (2025–present): Copper physically cannot move data at the speed 100,000-GPU clusters require. Hyperscalers have reportedly locked up 1.6T transceiver supply through 2028. Early stage — the window is open now.
• Space (2025–2035+): Terrestrial power and bandwidth are hitting structural limits — U.S. grid interconnection queues now stretch a median of five years. Blue Origin has filed with the FCC for up to 51,600 satellites; Google has its own space-based compute research underway. Emerging — the enabling layers monetize first.

But what's next? That's what we'll be discussing.

About the Panelists

• Matt Tuttle, CEO & Portfolio Manager, Tuttle Capital Management — 44 years as a trader and investor, architect of TCM's fully transparent, actively managed ETF lineup (~$4.5B AUM).
• Frances Newton, Chief Investment Officer, Tuttle Wealth Partners — extensive experience analyzing monetary policy and national media commentator (Bloomberg, Fox Business, CBS, Yahoo Finance); policy advisor to the Bank of England.
• Dave Pankiw, Partner, CUBIC Advisors — 40 years in the investment business, flat-fee retirement planning specialist, contributor to the Journal of Personal Finance and Marketwatch.com.

Register Here

Sponsored by Tuttle Capital Management

Below is an assessment of the performance of the most important sectors and asset classes relative to each other.

LEADERS: NARROW BUT REAL — XLE Notable Wk 4, GLD Flips Back, XLV+XLB Join, XLF Held

Energy (XLE) – Week 4 Leader Confirmed, Notable +1.02σ, Improving/Leading

XLE/SPY: +6.70% one-month, +3.57% three-month, +1.82% six-month, +18.97% one-year (Signal strength: +1.02σ — Notable). Energy sustained its leadership for a fourth consecutive week at Notable +1.02σ — the strongest sustained Z-signal in the tracked set. Improving/Leading RRG. Strongest 4W ROC (+2.79%) despite 3M still negative (-4.54%). This is now the primary structural rotation anchor. Run #26 forward call to stay positive: CORRECT.

Gold (GLD) – Flipped Back to Leader, Improving/Leading

GLD/SPY: +4.27% one-month, -11.68% three-month, -21.46% six-month, +3.99% one-year (Signal strength: +0.29σ — Background). Gold flipped back to Leader after Run #26's single-week noise flip to Laggard. +4.27% 1M, +6.26% 4W ROC (strongest 4W in the set), Improving/Leading RRG. Reserve-manager and inflation-hedge bid returning. Run #26 read of the 5-flips-to-Laggard was itself the signal gold was undervalued at that flip.

Healthcare (XLV) – New Leader Notable +0.60σ, Weakening RRG

XLV/SPY: +2.28% one-month, +12.22% three-month, -4.28% six-month, +7.46% one-year (Signal strength: +0.60σ — Weak). Healthcare joined leader group with +2.28% 1M and +12.22% 3M. Notable +0.60σ Z-signal. Weakening RRG (positive 4W ROC decelerating). Defensive add joining alongside XLE/GLD suggests rotation is broadening from pure risk-on interpretation into mixed-anchor structure.

Financials (XLF) – Held Leader Status +1.34% 1M, Lagging RRG

XLF/SPY: +1.34% one-month, +7.75% three-month, -4.50% six-month, -7.55% one-year (Signal strength: +0.33σ — Background). Financials held Leader status at +1.34% 1M, +7.75% 3M — the second-strongest 3M in the tracked set behind XLE. Lagging RRG (positive 4W but decelerating from strong prior). Rate curve normalization + earnings support keep this sector on the rotation ladder. Weak Z (+0.33) indicates the weekly move is background, not signal-driven.

Materials (XLB) – Quiet Leader +2.06% 1M, Improving/Leading

XLB/SPY: +2.06% one-month, -1.53% three-month, -7.50% six-month, -0.35% one-year (Signal strength: +0.26σ — Background). Materials flipped to Leader with +2.06% 1M and Improving/Leading RRG. Modest Z (+0.26), so this is a trend confirmation rather than an extreme signal. Aligns with the reflation-broadening narrative — commodity-exposed cyclicals participating alongside energy.

International Developed (EFA) – Improving/Leading, Modest Positive

EFA/SPY: +1.11% one-month, +0.45% three-month, -4.98% six-month, +0.60% one-year (Signal strength: -0.34σ — Background). EFA/SPY at +1.11% 1M, Improving/Leading RRG. Weak Z (-0.34) — background noise but 4W ROC +1.39% is positive after prior negative print. DXY continues to soften which normally supports international ex-US allocations. Watch for expansion of this leadership if dollar weakness sustains.

European Financials vs US (EUFN) – European Banks Outperforming +1.61% 1M

EUFN/XLF: +1.61% one-month, +1.13% three-month, +6.09% six-month, +15.53% one-year (Signal strength: -0.51σ — Weak). EUFN/XLF at +1.61% 1M — European financials outperforming US financials this cycle. +3.24% 4W ROC, Improving/Leading RRG. ECB rate path + Bund yield behavior + Euro area recovery narrative are the underlying supports. Modest signal but structurally interesting cross-currents.

MACRO CONFIRMATION PANELS

Credit (JNK/GOVT) – Week 5 Positive But Decelerating

JNK/GOVT: +0.69% one-month, +1.59% three-month, +2.42% six-month, +4.23% one-year (Signal strength: +0.17σ — Background). Credit continues confirming but momentum has slowed. Trend: +0.69% (Run #23) → +0.72% → +0.77% → +0.91% (Run #26) → +0.69% (Run #27). Weakening RRG. Run #26 call to stay positive: CORRECT. Watch for negative print next week as the sharpest warning — if credit rolls over while equity rally continues, that's a divergence flag.

Lumber/Gold – Reflation Trade Cracking (-14.69% 4W ROC)

Lumber/Gold: -12.88% one-month, +7.67% three-month, +11.99% six-month, -31.02% one-year (Signal strength: -0.08σ — Background). 4W ROC at -14.69% — reflation trade cracking hard. 3M/6M still positive but 4W deterioration is severe. Growth-favoring configuration weakening dramatically. This is early warning that the SPY rally may not be sustained without broader participation. If 4W ROC hits -20% next week, the growth/reflation signal is genuinely broken.

LAGGARDS: Framework Check Broken, Tech Recovery Late, XLC Notable Fading

Utilities (XLU) – Framework Check DEEPLY BROKEN Week 3

XLU/SPY: -7.24% one-month, -7.62% three-month, -10.40% six-month, -17.13% one-year (Signal strength: -0.27σ — Background). XLU/SPY 4W ROC at -8.58% — the Framework Check signal accelerated deeper into broken territory for a third consecutive week. From +1.68% (Run #24) → -2.48% (Run #25) → -2.90% (Run #26) → -8.58% (Run #27). Defensive utility bid is genuinely done for this cycle. Run #26 forward call to stay broken: CORRECT (deteriorated further).

Communication Services (XLC) – Notable Z Decelerating (+1.10 → +0.61)

XLC/SPY: -2.17% one-month, -8.75% three-month, -13.65% six-month, -14.61% one-year (Signal strength: +0.61σ — Weak). XLC continues its Z-score deceleration: +1.55 (Run #25) → +1.10 (Run #26) → +0.61 (Run #27). Ratio itself weakened (-2.17% 1M). Lagging RRG. Was the second-anchor of the cyclical thesis last week; now slipping toward Background. Watch for stabilization or drop below +0.5 next Friday.

Technology (XLK) – Unwind Continued Week 5, Recovering RRG

XLK/SPY: -2.05% one-month, +1.15% three-month, +17.61% six-month, +15.09% one-year (Signal strength: -0.59σ — Weak). XLK/SPY -2.05% 1M, -0.39% 4W ROC — Z at -0.59 (Weak). Run #26 forward call to turn 4W ROC positive: INCORRECT (velocity improved substantially from -0.76% prev 4w but still slightly negative). RRG shows Recovering. 3M/6M returns still positive (+1.15% / +17.61%). Direction of travel is right; the crossover is late. Definitive test next Friday.

Consumer Discretionary (XLY) – Faded to Neutral, Recovering RRG

XLY/SPY: -0.31% one-month, -5.06% three-month, -9.51% six-month, -12.66% one-year (Signal strength: +0.08σ — Background). XLY continues to fade — Notable +1.43σ (Run #25) → +0.38 (Run #26) → +0.08 background (Run #27). Now essentially neutral. 1M -0.31%, 4W ROC -0.05%. Recovering RRG velocity but ratio hasn't turned positive. The Run #25 discretionary cyclical bid was noise, definitively confirmed.

Emerging Markets (EEM) – Unwind Moderating, Recovering RRG

EEM/SPY: -4.86% one-month, -8.23% three-month, -3.09% six-month, +8.63% one-year (Signal strength: -0.40σ — Background). EEM/SPY -4.86% 1M, -2.08% 4W ROC — unwind continuing but at moderating pace. Recovering RRG (velocity improving). China property overhang + structural EM headwinds continue. Watch for contagion into XLI (-0.90% 1M) and XLB (+2.06% 1M — flipped Leader this week).

Industrials (XLI) – Slight Lag, Lagging RRG

XLI/SPY: -0.90% one-month, +1.69% three-month, -4.77% six-month, +0.36% one-year (Signal strength: -0.22σ — Background). XLI/SPY -0.90% 1M, -0.81% 4W ROC — Weak lag with Lagging RRG. Cyclical group not participating in the rotation despite XLB flip to Leader. If Lumber/Gold breaks -20% next week, XLI is likely first to break lower alongside it. Watch closely.

Real Estate (XLRE) – Notable Laggard, Lagging

XLRE/SPY: -2.45% one-month, -4.01% three-month, -4.57% six-month, -10.66% one-year (Signal strength: -0.47σ — Background). XLRE/SPY -2.45% 1M, -3.74% 4W ROC — rate-sensitive real estate remains under pressure despite 10Y yields easing. -0.47σ Z. Weak on both trend and momentum. Recovering RRG velocity absent.

Consumer Staples (XLP) – Weak Laggard, Recovering RRG

XLP/SPY: -1.38% one-month, -3.29% three-month, -13.07% six-month, -14.12% one-year (Signal strength: +0.02σ — Background). XLP/SPY -1.38% 1M, -2.67% 4W ROC — defensive staples continuing to fade alongside XLU. Neutral Z (+0.02). Recovering RRG velocity is the sole positive signal — if it converts to a Z-score above +0.5 next week, defensive bid may attempt a bounce. Not confirming yet.

Long Treasuries (TLT) – Deep Laggard, Lagging

TLT/SPY: -4.74% one-month, -8.21% three-month, -14.79% six-month, -20.82% one-year (Signal strength: -0.24σ — Background). TLT/SPY -4.74% 1M, -4.91% 4W ROC — long-duration bonds getting punished by rate curve normalization + risk-on tape. -0.24σ Z (Weak). Yields still elevated at the long end despite Fed easing pricing. Duration remains structurally challenged.

Small Caps (IWM) – Lagging Small Caps

IWM/SPY: -1.02% one-month, +0.71% three-month, +1.01% six-month, +11.53% one-year (Signal strength: -0.44σ — Background). IWM/SPY -1.02% 1M, -0.94% 4W ROC — small caps failing to participate in the SPY rally. -0.44σ Z. This is a breadth warning — SPY strength is being driven by mega-cap exposure with small-caps underperforming. Confirms the 'index-thin, not ratio-broad' read on the rally.

IG Corporate Credit (LQD) – Lagging, Recovering

LQD/SPY: -3.29% one-month, -6.57% three-month, -12.84% six-month, -18.30% one-year (Signal strength: -0.12σ — Background). LQD/SPY -3.29% 1M, -3.58% 4W ROC — investment-grade corporate credit lagging risk. Recovering RRG velocity but ratio still deeply negative. Duration-sensitive credit is a hybrid signal — reflects both rate path and spread compression.

Dividend Aristocrats (SDY) – Neutral, Lagging

SDY/SPY: -0.34% one-month, +1.95% three-month, -7.59% six-month, -5.65% one-year (Signal strength: -0.04σ — Background). SDY/SPY -0.34% 1M — dividend-focused equity strategy essentially neutral this week. Negligible Z (-0.04). Lagging RRG. Not confirming defensive add nor participating in leader rotation.

EM Debt (EMB) – Weak Neutral

EMB/GOVT: -0.34% one-month, +0.74% three-month, +1.60% six-month, +5.47% one-year (Signal strength: -0.39σ — Background). EMB/GOVT -0.34% 1M — EM sovereign debt vs Treasuries essentially flat. -0.39σ Z. Signal below noise threshold; no actionable read.

TIPS vs Treasuries (TIP) – Break-Evens Flat

TIP/GOVT: -0.02% one-month, -0.47% three-month, +0.78% six-month, +0.24% one-year (Signal strength: +0.43σ — Background). TIP/GOVT -0.02% 1M — inflation break-even signal remains essentially flat, +0.43σ Z barely notable. Real yield differential holding. Not confirming the inflation-hedge push visible in gold's leadership flip.

PREVIOUSLY ON LEADERS-LAGGARDS

Run #26 Headline: "SPY Rips +2.5%, Ratios Say Not Yet: Framework Check Signal Stays Broken, XLC Notable +1.1σ Holds, XLK Recovering But Still Lagging, Rotation Broadening Not Confirmed"

STRONG SCORING. Run #26 1-week forward calls: XLU stays broken → CORRECT (-8.58% 4W ROC vs prev -2.90%, deteriorated further), XLE 4W ROC stays positive → CORRECT (+2.79%), XLC Z above +0.5 → CORRECT (+0.61), JNK/GOVT stays positive → CORRECT (+0.69%), Lumber/Gold 3M stays positive → CORRECT (+7.67%). Miss: XLK 4W ROC turns positive → INCORRECT (-0.39%, closer but not yet). Overall: 5 CORRECT / 1 INCORRECT / 83% accuracy — best scoring cycle to date.

Streak tracking:

• XLU/SPY: Signal BROKEN Week 3 (Framework Check accelerating deterioration -8.58%)
• XLE/SPY: Week 4 leader confirmed + Notable +1.02σ (highest sustained Z)
• XLC/SPY: Notable Z faded from +1.10 to +0.61 — 3-week decel: +1.55 → +1.10 → +0.61
• XLK/SPY: Week 5 unwind but Recovering RRG velocity improving (-0.76% → -0.39% 4W ROC)
• JNK/GOVT: Week 5 extending positive credit (though rate slowed: +0.91% → +0.69% 1M)
• GLD/SPY: Flipped back to Leader after Run #26 flip to Laggard (single-week noise)

PORTFOLIO CONSTRUCTION CONTEXT

Run #26's cyclical rotation thesis has PARTIALLY held. XLE confirmed strongly (call CORRECT). XLC held above +0.5 Z (call CORRECT). XLU stayed broken (call CORRECT). JNK/GOVT stayed positive (call CORRECT). Lumber/Gold 3M stayed positive (call CORRECT). But XLK failed to turn positive (call INCORRECT). 5 of 6 CORRECT on Run #26 1-week calls — best scoring cycle to date.

Sizing: Two-anchor rotation (XLE + GLD) is real but narrow. Overweight XLE at 25-40 bps sizing remains appropriate. GLD adds at similar sizing sensible on the flip-back. Do NOT chase XLK or XLC based on RRG improvement alone — wait for 4W ROC or Z-score confirmation. Do NOT add cyclical XLI or XLB exposure — both still in Lagging territory. The SPY rally is real, but ratio-driven sector selection is winning over broad-index exposure this quarter.

WHAT WOULD CHANGE MY VIEW

• XLK/SPY 4W ROC turns positive by next Friday (rotation validates as three-anchor broadening)
• XLE/SPY Z-score falls below +0.5 (primary rotation anchor lost)
• JNK/GOVT rolls over to negative 1M (credit break)
• Lumber/Gold 4W ROC hits -20% (growth/reflation signal breaks)

THREE THINGS I'M WATCHING THIS WEEK

• 1. XLK/SPY 4W ROC turns positive: Currently at -0.39% (was -3.83% Run #26, prev 4w -0.76%). Velocity is clearly improving. If it crosses positive next Friday, rotation validates as three-anchor (Energy + Gold + Tech). If it stays negative for a fifth consecutive week, this rally stays a narrow XLE + GLD story.
• 2. XLC/SPY Notable Z sustainability: Faded from +1.55 (Run #25) to +1.10 (Run #26) to +0.61 (Run #27). One more decel and it drops below +0.5 (Background). Watch for stabilization or breakdown.
• 3. Lumber/Gold 4W ROC direction: -14.69% is a sharp deterioration. If 4W ROC hits -20% next Friday, the growth/reflation signal is genuinely broken. This is now a P0 watch item.

THE WEEK IN CONTEXT

SPY extended its rally with another +2.03% week to $773.03, but rotation is broadening only modestly. XLE confirmed Week 4 leadership at Notable +1.02σ — the strongest sustained signal in the tracked set. GLD flipped back to Leader (Run #26's flip to Laggard was single-week noise). But XLK failed to turn positive as Run #26 called (INCORRECT — velocity improved, ratio still slightly negative). XLC Notable Z decelerating fast (+1.55 → +1.10 → +0.61). XLU/SPY 4W ROC DEEPLY BROKEN at -8.58% (Framework Check accelerating deterioration). Lumber/Gold -14.69% 4W ROC — reflation trade cracking. This is a two-anchor rotation (XLE + GLD) not the broad three-way it looked like it might become. Watch XLK next Friday and Lumber/Gold direction: if XLK crosses positive and Lumber/Gold stabilizes, broader participation validates. If XLK stays negative and Lumber/Gold rolls to -20%, this rally is stretched and setup for a resolution lower. Run #26 scored 5 of 6 forward calls CORRECT — best scoring cycle to date.