CPI tests the inflation thesis. PPI tests the memory transmission. Retail sales tests the consumer floor. And one nuclear utility tests whether the grid story is already showing up in earnings.

MARKET PULSE

Last week reframed the market. AI stopped being a sector and became the operating system the rest of the economy runs on.

That framework immediately produced visible stress points across the economy. Capex distortion. Regulatory reversal. AI-driven layoffs. Memory as a monetary input. A higher floor under bond yields. A grid that cannot keep up.

This week tests whether each one shows up in the data.

Tuesday's CPI is the inflation test. Wednesday's PPI is the cost transmission test. Thursday's retail sales is the consumer test. Seven Fed speakers will frame the institutional response. Four earnings reports test specific layers of the thesis.

Last week was the diagnosis. This week is the first read on whether the diagnosis is getting more or less severe.

Here are the six things that matter most.

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SIGNAL ONE

TUESDAY CPI TESTS WHETHER THE INFLATION GAP WIDENS OR CLOSES.

Last week's Pimco research showed core PCE running well above core CPI in 2026, with the gap traced to AI infrastructure costs. That gap is what put a 17 percent hike probability into CME futures.

Tuesday's CPI release is the next data point. The question is direction. If CPI starts catching up to PCE, the gap closes and the rate path conversation shifts back toward cuts later this year. If CPI stays mild while PCE keeps rising, the divergence becomes the dominant macro story heading into Warsh's first FOMC meeting on May 15.

Energy will distort the headline number. Gas at $4.52 nationally and diesel at a 20-year low will both show up. Core CPI is the cleaner signal for the AI thesis specifically.

The Line

Watch core services CPI excluding shelter. That category captures the technology and communication services where AI input costs are most likely to show up first. A reading above 0.4 percent month-over-month is where the bond market starts pricing the divergence as a trend.

SIGNAL TWO

WEDNESDAY PPI TESTS THE MEMORY TRANSMISSION DIRECTLY.

PPI measures prices at the producer level before they reach consumers. It is the cleanest read on whether last week's memory chip story is already feeding through industrial costs.

Meta (META) raised full-year capex by $10 billion last week citing memory specifically. GE HealthCare (GEHC) cut profit guidance for the same reason. Tim Cook warned Apple (AAPL) memory costs will be significantly higher after June. Those are the announcements. PPI is where they show up in the data.

The components to watch are intermediate goods and computer/electronic products. Both are the channels through which Korean memory pricing reaches U.S. corporate cost structures.

The Line

Watch the spread between headline PPI and core PPI. If core is rising while headline is falling on energy, the input layer of the economy is repricing independent of oil. That confirms what last week's bond market priced and validates the higher-yield-floor thesis going forward.

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SIGNAL THREE

THURSDAY RETAIL SALES TESTS THE CONSUMER FLOOR.

University of Michigan consumer sentiment hit 48.2 on Friday, a fresh record low. One-third of respondents named gas prices as their primary concern. Another third cited tariffs.

Retail sales Thursday morning is the first hard read on whether sentiment is translating into behavior. The headline number matters. The composition matters more.

Watch the credit-sensitive categories. Used vehicle financing rates, installment credit balances, and utility arrears have all been climbing quietly for three months. Retail sales picks up the spending side of that pressure. If consumers are pulling back on discretionary categories while non-discretionary balances build, the K-shaped split McDonald's (MCD) named is widening, not stabilizing.

McDonald's CEO said two weeks ago that consumer spending may be getting worse, specifically for low-income customers. Uber (UBER) and Disney (DIS) said the opposite about higher-income customers. Both can be true. Thursday's data shows which side is moving faster.

The Line

Watch the control group reading. That subset strips out autos, gas, and building materials and feeds directly into Q2 GDP. A negative print confirms the consumer pullback that Michigan sentiment is signaling. A positive print means consumers are absorbing the cost shock without changing behavior, at least for now.

SIGNAL FOUR

SEVEN FED SPEAKERS FRAME WARSH'S FIRST WEEK.

Williams, Goolsbee, Collins, Kashkari, Logan, Hammack, and Barr all speak this week. That is a wide cross-section of the committee.

Warsh takes the chair Friday. Powell stays on as governor. Three regional presidents already voted against the language signaling rate cuts. A fourth wanted an immediate cut. The committee Warsh inherits is the most fractured in decades.

Hammack is the most important voice. She voted against the dovish language at the last meeting. Her tone Tuesday morning, before CPI prints, sets the framing for how the data gets read. Goolsbee and Kashkari have both flagged supply-chain risk that does not reverse with peace. Logan and Barr are the centrists.

The Line

Watch whether any speaker explicitly references PCE versus CPI divergence. That language has not yet entered the official Fed framing. The first official to name it shifts the conversation from "transitory inflation" to "structural inflation," which changes the probability curve on cuts for the rest of the year.

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SIGNAL FIVE

CONSTELLATION ENERGY IS THE GRID STORY IN EARNINGS FORM.

Constellation Energy (CEG) reports Tuesday. The company operates the largest fleet of carbon-free generation in the U.S., including the nuclear capacity that hyperscalers are paying premium rates to lock up.

Last week PJM said the grid cannot keep up with AI demand on the timeline that matters. Constellation is on the other side of that constraint. It is the seller in a market with structurally insufficient supply.

The numbers to watch are the contract pricing and term length on new data center power purchase agreements. If Constellation is signing 20-year deals at premiums above current market rates, the grid story is already showing up as locked-in revenue. The signal extends to Vistra (VST), Talen Energy (TLN), and any operator with nuclear or baseload capacity.

The Line

Watch Constellation's commentary on Three Mile Island and any new hyperscaler deal pricing. Those are the cleanest read on whether AI's grid bottleneck is translating into utility earnings power before the rest of the market has fully priced it.

SIGNAL SIX

APPLIED MATERIALS, SIMON PROPERTY, AND ROSS TEST THE OTHER THREE THREADS.

Three more earnings reports test specific pieces of last week's framework.

Applied Materials (AMAT) reports Thursday. The company makes the equipment that builds the chips behind every AI capex projection. Its order book is the leading indicator on whether hyperscaler spending is accelerating, holding, or pulling back. Order growth above 30 percent confirms the capex cycle. Anything below 20 percent suggests the buildout is hitting physical limits faster than expected.

Simon Property Group (SPG) reports Monday. The largest mall operator in the U.S. is the cleanest read on physical retail traffic during the consumer pullback. Its tenant sales data and occupancy guidance show whether discretionary spending is holding or rolling over.

Ross Stores (ROST) reports Thursday. The off-price retailer is the trade-down read. When consumers move from full-price to discount, Ross benefits before anyone else in retail sees it. Strong comps at Ross while Simon softens would confirm the K-shaped consumer split McDonald's named.

The Line

Watch Applied Materials guidance for the second half of 2026. If the company is pulling forward orders to beat the memory shortage, the AI capex cycle is still running hot. If guidance moderates, the supply-side ceiling on the buildout is closer than the market currently prices.

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CLOSING LENS

Last week named the operating system. This week stress-tests every layer of it.

CPI tests whether inflation is broadening or staying contained. PPI tests whether memory costs are already reaching producers. Retail sales tests whether consumers are still absorbing the cost shock. Seven Fed officials test the institutional framing. Four earnings reports test specific pieces of the thesis directly.

The new framework is in place. Clean results get rewarded. Open-ended costs get punished. Stories with hard data behind them get priced. Stories without it get sold.

This week determines how many of last week's six threads survive contact with the next round of numbers.

The pressure points are now visible. The measurements arrive Tuesday morning.

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