CPI Report and TSMC Earnings Set Up a Make-or-Break Market Week

Two days carry the week

The October 12–16 calendar is packed. It includes the opening of bank earnings season, a run of retail and manufacturing data, the Fed's Beige Book, and a series of Federal Reserve speakers. Even so, the week will probably turn on two events: the September consumer price index on Wednesday and the semiconductor earnings from ASML and Taiwan Semiconductor Manufacturing (TSMC) that arrive alongside it. ASML reports Wednesday morning, the same day as CPI, and TSMC reports before the open on Thursday.14 One question sits behind both. Inflation is pushing bond yields toward multi-decade highs, and the market needs to know whether the AI spending boom can keep justifying stock prices close to record levels.

The stakes are high because of where stocks are starting. The S&P 500 closed Friday at about 7,811, just under the record of 7,844.52 it reached earlier in the week. The Nasdaq Composite ended at roughly 27,366.7 The S&P 500 is up more than 13% this year, and S&P 500 earnings are expected to have risen more than 30% in the third quarter.9 With expectations that high, there is little room for disappointment from either inflation or chipmakers.5

The inflation print and a Fed that is raising rates again

The backdrop is unusual for an equity market trading near records. The Fed raised its target range by a quarter point to 3.75%–4.00% on September 16.2 Coverage describes that move as the central bank's first hike since 2023.9 The 10-year Treasury par yield hit 5.31% on October 5, the highest since 2002, and closed at 5.24% on October 9.2 One market recap put the intraday peak a bit higher, at about 5.36%.7 Brent crude settled at $104.72 on October 9 after repeated attacks on Saudi oil infrastructure, so energy prices still carry a risk premium.2

Forecasts for Wednesday's CPI report vary slightly, but they all point to firmer inflation. One preview puts the consensus for headline CPI at 3.6% year over year, up from 3.4%, with a monthly gain of 0.6% versus 0.4% the previous month.5 Another expects about 3.7% annually.8 Core CPI is forecast at roughly 2.5% year over year, with a 0.2% monthly increase.58 The gap between headline and core numbers suggests that most of the pressure is coming from oil, not from wider inflation in the economy. That distinction matters for how the Fed reads the report.

The report is one of the last major data releases before the October 27–28 FOMC meeting.89 A hot number could put an October rate hike back on the table.5 Thursday adds producer prices, retail sales and jobless claims.5 Fed Chair Kevin Warsh is scheduled to speak on Friday.5 Consumer surveys are already sour. The University of Michigan's preliminary October sentiment reading fell to 46.3, and year-ahead inflation expectations rose to 4.7%.3

In my view, the core number matters more than the headline. A headline figure near 3.6% is largely expected because of oil prices. A core reading above 0.2% for the month would point to broader inflation, and that would make another hike much harder for the Fed to avoid.

Chip earnings: strong numbers, nervous investors

The semiconductor reports come at a strange moment. The underlying numbers are very strong, but investors have stopped rewarding them reliably. TSMC said its September revenue was about NT$511.86 billion, up 54.6% from a year earlier, and its revenue for the first nine months of the year rose 41.1%.14 Its preliminary third-quarter revenue was up about 51% at roughly NT$1.49 trillion.16 One estimate converts quarterly sales to about $46.7 billion, which is above the company's guidance range of $44.6 billion to $45.8 billion.1320

Investors were unimpressed. TSMC shares fell in Taiwan after the sales figures came out. Samsung also fell after forecasting a record operating profit roughly nine times higher than a year earlier.16 Samsung's stock is now about 25% below its June high.1 One market strategist read this as a sign that the market's mood is changing. In that view, oil and yields now outweigh good AI news, where a month ago the same data would have sparked a rally.16

A single headline made the nervousness worse. On Thursday, chip stocks sold off after a report that OpenAI's annualized revenue was running about $20 billion below earlier expectations.12 Stocks recovered on Friday, led by AI names, after later reports clarified OpenAI's revenue picture.1 The episode shows how much the AI trade now depends on whether the biggest buyers of AI computing power can afford to keep spending. Coverage of the week has started to focus on the debt that pays for AI infrastructure, not only on chip demand.1

For TSMC, the key items will be gross margin and guidance. The company guided third-quarter gross margin to 65%–67%, and it expected the 2nm ramp to reduce margin by roughly 3 to 4 percentage points.13 Revenue is already mostly known, so Thursday's results will be judged on profitability, the outlook for AI demand, and plans for advanced-node capacity.1220 Analyst expectations are high. Consensus is around $4.48 per American depositary share.512 Citi expects TSMC's revenue to grow more than 40% in 2027 and its AI revenue to nearly double.19

ASML comes first, and it could set the tone. The company guided third-quarter revenue to €11 billion–€12 billion with a gross margin of 55%–57%, up sharply from €9.33 billion in the second quarter.17 It had already raised its full-year forecast to €43 billion–€45 billion, and management has said low-NA EUV output for 2027 is nearly fully booked.13 Earnings estimates differ: one preview cites a consensus of $12.07 per share and another $12.54.512 Most coverage agrees that guidance and 2027 bookings will matter more than the quarter itself.12 China, at about 20% of sales, is still the main export-control risk.13

Previews also differ on which report matters most. One weekly guide calls ASML's results the week's most important semiconductor print.12 Others treat Thursday's TSMC report as the main test for chip stocks. CNBC's Jim Cramer has argued that a strong TSMC quarter could spark a huge rally, while a weak one could drag down most of the sector.11 I side with the TSMC camp. ASML's orders reflect what chipmakers plan to buy, while TSMC's numbers show what customers have actually paid for. Once AI finance has been questioned, investors will put more weight on proven sales.14

Banks set the scene

Bank earnings run underneath both events. JPMorgan Chase, Goldman Sachs, Citigroup and Wells Fargo report Tuesday, and Bank of America, Morgan Stanley and BlackRock follow on Wednesday.4 Investors will look at net interest income, credit quality and trading revenue for signs of how higher rates and energy costs are affecting the economy.68 Management guidance is mixed. JPMorgan has pointed to investment banking and trading revenue up by mid-to-high teens, while Bank of America has guided investment banking fees down at least 10%.9 The bond market is closed Monday for the holiday, so trading is likely to be light before the busy part of the week.2

Bitcoin is reacting to yields

Crypto markets reacted to rising yields before stocks did. Bitcoin started the week near $86,636, fell to just above $80,000 on Thursday evening, and was trading around $82,900 by Sunday. That is a weekly loss of about 2%. Ether lost 6.8% and Solana lost 8.1% over the same period.21 More than $2.4 billion in crypto positions were liquidated during the week, most of them leveraged bets on higher prices.23

Outflows from exchange-traded funds were the clearest sign of weaker demand. Spot bitcoin ETFs lost about $485 million on Wednesday, their worst day since June, and another $244 million on Thursday.22 Weekly totals vary by tracker, from about $680 million to more than $700 million.2124 Analysts tie the selling to the 10-year yield above 5.3%, Fed minutes that point to another hike, and a stronger dollar.2224 Bitcoin is down about 28% from a year ago.25 It is still well below its October 2025 record of $126,199, and it was turned back this week near $87,600.24

Technical analysts disagree on what comes next. One analysis notes that bitcoin still trades above its main moving averages, which sit between about $75,500 and $79,800, and so keeps a mildly positive bias.24 Prediction-market traders are more pessimistic. Myriad users put a 67% chance on bitcoin trading at or below $80,000 before the end of October.22 The ETF cost-basis area near $83,000 is the first level analysts are watching for any recovery.22

The bottom line

In my reading, this week's three stories have the same driver. The price of money matters more right now than the strength of the AI story. Strong chip fundamentals have not been enough to lift chip stocks this month, and bitcoin has traded as a proxy for liquidity, not as a hedge. A mild core CPI reading followed by solid TSMC guidance could revive the rally in chips and give crypto some relief. A hot inflation print would probably overshadow even excellent earnings. Recent market action suggests investors would let yields decide and set the earnings aside.