Stock Market Week Ahead: CPI and TSMC Earnings Set the Tone

Two catalysts, one question

Wall Street starts the week of October 12 near record highs, so there is little room for error. Two scheduled events are most likely to decide whether that holds. The first is September's consumer price index on Wednesday. The second is Taiwan Semiconductor Manufacturing's third-quarter report on Thursday. In practice, both bear on the same question: can a market priced for strong AI-driven earnings absorb an inflation backdrop that has already pushed the Federal Reserve back toward raising rates?

Previews from different outlets broadly agree on the calendar but rank the events differently. Seeking Alpha leads with CPI and the start of third-quarter earnings season, and it calls TSMC a key read on the AI chip complex.13 FXEmpire treats CPI as the main event and bank earnings as the first test of how higher rates and energy costs are reaching consumers.15 TipRanks puts the two inflation reports and the big-bank results at the center, with ASML and TSMC close behind.20 My view is that the bank results will mostly confirm what is already known. The CPI print and TSMC's guidance are the two events that could actually change the direction of the market.

The inflation print: a high bar for a market at records

The backdrop is unusual. In September the Fed raised rates for the first time since 2023, lifting the target range by a quarter point to 3.75%–4%. Its projections also suggested some officials see room for another increase before year-end.16 Expectations for an October hike had faded after New York Fed President John Williams said there was no urgency, and after a soft September jobs report.16 That softer data helped the Dow close at a record high.14

Wednesday's report could undo that. FXEmpire's consensus has headline CPI rising to 3.6% year over year from 3.4%, with a 0.6% monthly gain compared with 0.4% the previous month. It warns that a hot reading could bring back bets on an October hike.15 On core inflation the previews disagree. Seeking Alpha says economists expect core prices to rise 2.4%.13 FXEmpire's calendar has core CPI at 2.5% year over year, up from 2.4%, with a 0.2% monthly increase.15 The gap is small, but at these valuations a tenth of a point could matter.

I read the setup as asymmetric. Most of the pressure is in headline inflation, and coverage ties that to energy. Schwab's weekly outlook notes that crude jumped more than 4% on Thursday. It lists possible support beneath oil prices as one reason for a "cautious" stance, along with negative momentum divergences in the major indexes and failed relative breakouts in technology and high-beta stocks.11 Earlier in October, Investing.com reported that bond yields had climbed to their highest levels in decades, driven by worries over energy-led inflation and the cost of building out AI infrastructure.16

The rest of the week adds more data on the same theme. The Fed's Beige Book comes out Wednesday, producer prices and retail sales follow on Thursday, and several Fed officials speak during the week. Fed Chair Kevin Warsh is scheduled to speak on Friday.15 Major indexes still trade above rising 52-week moving averages, and the S&P 500 finished last week at 7,811.54.15 That is a strong position to defend, but it also leaves stocks with further to fall if inflation runs hot.

TSMC: the AI trade's report card

If CPI sets the cost of money, TSMC tests the earnings story that has supported valuations. The chipmaker reports Thursday.21 It has already said third-quarter revenue grew about 50% year over year.26 Analysts surveyed by TipRanks expect $4.41 in earnings per ADR on $45.36 billion in revenue, compared with $2.85 and $33.08 billion a year earlier.29 StockInvest.us puts the consensus slightly higher at $4.42, and FXEmpire's calendar lists $4.48.2515

The revenue number is largely known, so the stock's reaction will depend on guidance. TSMC raised its full-year growth outlook from the mid-to-high 20% range to more than 30% in April, and to at least 40% in July. Bulls will likely expect another increase.26 The Motley Fool's preview points to a less obvious risk: if TSMC only reiterates revenue guidance while raising capital spending, as it did last quarter, the stock could fall even on a beat.26 Investors will also watch its high-performance computing segment, which made up 66% of revenue in the second quarter.26

Options traders are pricing a bigger move than usual. The implied move is about 5% in either direction, compared with an average of roughly 2.87% after the past four reports.29 That fits with how skittish the sector has become. Schwab noted that Samsung's stock slumped despite a nearly ninefold rise in third-quarter profit, and that record AI results no longer impress the way they once did.19 Reuters described tech as wobbling: the Dow hit a record while the Nasdaq slipped on weakness in chip shares.14 TSMC's ADRs have also pulled back from a 52-week high of $487.47 to about $453.26

High valuations help explain the caution. The iShares Semiconductor ETF rose 11% in September and trades at about 43 times earnings, so results that only meet expectations may get a muted response.30 Analysts remain bullish. Barclays raised its price target to $665, and the overall consensus is a Strong Buy.29 I think the market will look past a beat and react mainly to TSMC's guidance on capital spending and HPC growth.

ASML sets the stage on Wednesday

ASML reports before the CPI release on Wednesday, which gives chip investors an earlier signal on equipment demand.23 The Dutch lithography maker previously guided to €11 billion–€12 billion in third-quarter revenue and a 55%–57% gross margin, both well above the €9.33 billion in revenue it reported for the second quarter.24 It had already raised its 2026 revenue outlook to €43 billion–€45 billion from €36 billion–€40 billion.24 TradingKey highlights capacity constraints, tighter export rules for China and a high valuation as the main risks.24 Yahoo Finance shows a trailing P/E near 58.22 A cautious tone on bookings early Wednesday, followed by a hot CPI report, would be a difficult combination for semiconductor stocks before TSMC reports.

Bitcoin is already trading the rate risk

Crypto markets have been reacting to the rate outlook for more than a week. Bitcoin was around $82,900 on Sunday morning, down 2.1% for the week. It peaked near $86,636 on Monday and fell to just above $80,000 by Thursday evening.1 Ether, XRP and Solana fell roughly three times as much, which shows investors cutting the riskiest holdings first.1

Reports agree on the causes but differ on the size of the selling. Decrypt's tracker, cited by Cryptonews, recorded spot bitcoin ETF outflows of $484.9 million on Wednesday, the worst day since late June, and $244 million on Thursday. The same report ties the selling to a 10-year Treasury yield of 5.32% and Fed minutes pointing to another hike.2 FXStreet put net outflows at $702.23 million through Thursday, ending a three-week streak of inflows.4 CryptoTicker, using Farside data, estimated about $680 million for the full week.1 Analytics Insight focused on leverage, reporting more than $2.4 billion in liquidations, mostly of long positions, while open interest stayed near $150 billion.3 That much remaining leverage means sharp moves in either direction are still likely.

Traders are positioned for more downside. On the prediction market Myriad, traders put a 67% chance on bitcoin trading at or below $80,000 before the end of October.2 Bitwise Europe's Luke Deans identifies about $83,000, near the average ETF cost basis, as the first level a rebound needs to reclaim.2 FXStreet notes that bitcoin still trades above its 50-, 100- and 200-day exponential moving averages, which sit between about $75,500 and $79,800.4 CoinGape calls the week's inflation data and Fed remarks the main crypto catalysts.7 In my view, bitcoin is trading mainly as a bet on real yields this week. If CPI comes in cool, it should benefit along with tech stocks. If CPI runs hot, the $80,000 level will likely be tested.

The reading

The week's calendar is crowded, but most of it reduces to two questions. Wednesday's CPI report will show whether the Fed has to keep raising rates. Thursday's TSMC report will show whether AI demand is strong enough to justify current valuations even if it does. Bank earnings, ASML, retail sales and Warsh's remarks on Friday all add detail, but these two reports will likely set the market's direction. Bitcoin's decline over the past week suggests markets were already hedging against hawkish news before either report was released.