Published: October 11, 2026 at 01:36 PM
Weekly Market Memory
Weekly Market Memory
1. Weekly Summary
The S&P 500 closed at 7,811.54, up +1.15% on the week, while the Dow gained +0.93%. September payrolls rose by just 29,000, easing pressure for another hike in October, and Nvidia's $150 billion buyback added support, lifting the S&P 500 to a record close of 7,818.93 on 10-06. A strong 30-year auction helped pull the 10-year yield down to 5.24% from a weekly high of 5.36% (5.28% the prior week). With discount-rate pressure easing, money rotated into defensives rather than growth. Utilities XLU rose +3.97%, consumer staples XLP +3.60% and health care XLV +2.79%, and with Brent up +2.42% to $104.72, energy XLE also gained +3.60%.
On 10-08, reports said OpenAI's annualized revenue at end-September was about $50 billion, below market expectations of roughly $68 billion to $70 billion. News of tens of billions of dollars in debt financing at Oracle, Broadcom and SpaceX landed the same day, bringing AI infrastructure profitability and funding costs into focus at once. The semiconductor ETF SMH fell -2.84% that day and -4.32% on the week, and the Nasdaq gained only +0.64%, lagging the S&P 500. Korea was hit harder. The KOSPI closed at 6,625.93, down -5.39% on the week, and EWY fell -7.63%. Samsung Electronics posted a record third-quarter preliminary operating profit of 107.4 trillion won, yet foreign investors were net sellers of about 6.47 trillion won over four sessions. Elsewhere, the Russell 2000 fell -0.91%, Bitcoin -4.55% and Ethereum -8.84%, so risk-asset breadth was narrow.
The key inflection point next week is the US September CPI on Wed 10-14. If it comes in above expectations on higher oil prices, the odds of a hike at the 10-28 FOMC rise and the 10-year yield will retest its weekly high of 5.36%. In that case, this week's rotation into defensives would harden and corrections in growth and small caps would deepen. If CPI is in line, bank earnings (10-13) and TSMC (10-15) will test the debate over AI profitability. In Korea, when markets reopen on 10-12, the gap reflecting US trading during the holiday and foreign investor flows will decide whether the 6,600 level holds.
2. Review of Last Week's Outlook
3. Portfolio Drift & Risk
Weekly Portfolio Drift
All four asset classes rose. The 10-year yield slipped to 5.24% from 5.28%, which eased discount-rate pressure on every asset. Energy gained roughly three times as much as equities, helped by Brent +2.42%, an attack on an Iranian tanker and a hurricane in the Gulf of Mexico. Gold rose +1.17% even though the dollar index gained +0.27%. That reflects a one-day +1.57% rebound on 10-09 after two declines early in the week. Within equities, SPY +1.16% and QQQ +0.23% diverged. The index gain was led by defensive sectors and financials rather than tech.
Risk Analysis
Weekly Detail by Asset Class
| Asset class | Representative ticker | Weekly return | Notes |
|---|---|---|---|
| Equities | SPY | +1.16% | Record high on 10-06, two down days, then a rebound on 10-09. QQQ +0.23%, with tech lagging |
| Fixed Income | TLT | +0.65% | 10-year yield 5.24% (-0.76%), 30-year 5.60%. Modest bounce on strong auction demand |
| Gold | GLD | +1.17% | Rose against a stronger dollar (DXY +0.27%). Gold futures $4,216.3 |
| Energy | XLE | +3.60% | Brent $104.72 (+2.42%), WTI $91.85 (+0.81%). Tied for second among sectors |
Reading the Risk Indicators
| Indicator | Value | Meaning/context |
|---|---|---|
| VIX (fear gauge) | 14.84 (weekly high 16.46, prior week 15.31) | Toward the low end of the normal 12-18 range. Volatility remains low despite yields in the 5% range and oil above $100 |
| 10Y Treasury yield | 5.24% (weekly high 5.36%) | Near the highest since 2002 per the daily reports. It did not fall despite weak jobs data, so term-premium pressure persists |
| Max weekly drawdown | S&P 500 -0.69% (10-06→10-08 close) | Nasdaq -1.47%, KOSPI -5.39% on the week. The shock was concentrated in semiconductors and Korea rather than US indexes |
| 1-week cumulative S&P | +1.15% (7,722.72→7,811.54) | 0.09% below the record close of 7,818.93 on 10-06. No prior-week report, so multi-week cumulative return is not calculated |
| Regime | neutral | Indexes and VIX lean risk_on, but breadth is narrow, with the Russell 2000 -0.91%, SMH -4.32% and defensives leading |
4. Sector Performance
5. Week at a Glance
| Date | Market summary | S&P 500 | NASDAQ | VIX | WTI | Regime |
|---|---|---|---|---|---|---|
| 10-05 (Mon) | Weak jobs data eased hike pressure and Nvidia's buyback lifted the Nasdaq to a record high. Korea closed for a substitute holiday | 7,773.95 (+0.66%) | 27,477.31 (+1.05%) | 15.52 | $89.43 | risk_on |
| 10-06 (Tue) | S&P 500 record close. Marvell raised guidance, KOSPI -0.89% | 7,818.93 (+0.58%) | 27,599.79 (+0.45%) | 15.01 | $89.44 | risk_on |
| 10-07 (Wed) | 10-year yield hit its highest since 2002 intraday, with weakness beneath the surface as Russell -1.31% and industrials -2.18%. KOSPI -1.98% | 7,801.77 (-0.22%) | 27,538.69 (-0.22%) | 15.08 | $88.28 | neutral |
| 10-08 (Thu) | AI stocks sold off on the OpenAI revenue report, SMH -2.84%. Money moved into energy and consumer staples. KOSPI -2.62% | 7,765.36 (-0.47%) | 27,193.34 (-1.25%) | 15.41 | $91.49 | neutral |
| 10-09 (Fri) | All three major indexes rebounded and precious metals surged. The three telecom carriers plunged on SpaceX's spectrum acquisition. Korea closed for Hangul Day | 7,811.54 (+0.59%) | 27,366.17 (+0.64%) | 14.84 | $91.85 | neutral |
| 10-10 (Sat) | Weekend closure. 10-09 close carried over | 7,811.54 | 27,366.17 | 14.84 | $91.85 | neutral |
| 10-11 (Sun) | Weekend closure. 10-09 close carried over | 7,811.54 | 27,366.17 | 14.84 | $91.85 | neutral |
6. Trading Signal Changes
Start-of-Week vs End-of-Week Signal Comparison
| ETF | Asset class | Start-of-week entry condition | End-of-week entry condition | Change | End-of-week trail buffer |
|---|---|---|---|---|---|
| SPY | Core | Met | Met | → | 29.61% |
| QQQ | Core | Met | Met | → | 28.48% |
| XLK | Core | Met | Met | → | 27.80% |
| SMH | Theme | Met | Not met | ↓ | 9.80% |
| AIPO | Theme | Met | Met | → | 2.90% |
| BOTZ | Theme | Not met | Not met | → | 5.11% |
| EWY | Theme | Met | Not met | ↓ | 0.24% |
| ROKT | Theme | Not met | Not met | → | -4.75% |
| XLE | Theme | Not met | Met | ↑ | 18.82% |
| XLV | Theme | Not met | Met | ↑ | 17.09% |
| CPER | Commodities | Met | Not met | ↓ | 12.09% |
| DBB | Commodities | Met | Not met | ↓ | 9.20% |
| GLD | Safe haven | Not met | Not met | → | -5.10% |
| TLT | Safe haven | Not met | Not met | → | 4.71% |
| Individual stock | Start-of-week entry condition | End-of-week entry condition | Change | End-of-week trail buffer |
|---|---|---|---|---|
| AAPL | Met | Met | → | 27.48% |
| MSFT | Met | Met | → | 29.60% |
| NVDA | Met | Met | → | 24.21% |
| META | Met | Met | → | 22.16% |
| MU | Met | Met | → | 12.00% |
| TSLA | Met | Met | → (dropped out midweek, then re-entered) | 14.41% |
| AMZN | Not met | Not met | → | 21.38% |
| GOOG | Not met | Not met | → | 16.11% |
| AVGO | Not met | Not met | → | 3.29% |
| SPCX | — | — | — | 2.05% |
Rebalancing Actions
Accumulate
Newly met the entry condition on 10-08, and the trail buffer is wide at 18.82%. Brent at $104.72, tanker attacks near Hormuz and a hurricane limit oil's downside. A Brent reversal would trigger a large pullback, so approach in tranches.
Accumulate
New entry on 10-09. It was the only sector to rise on 10-07, when rate-sensitive sectors were sold, confirming defensive demand. UNH earnings on 10-13 are the first checkpoint.
Trim
Fell out of the entry condition on 10-09. The trail buffer remains at 9.80%, but the debate over AI profitability and funding costs is unresolved. Reduce exposure ahead of TSMC and ASML earnings on 10-15.
Exit
Fell out of the entry condition on 10-07, and the trail buffer on 10-08 was -0.19%, below the stop line. Foreign selling continued despite Samsung Electronics' record earnings, so flows rather than fundamentals are setting the price.
Hold
All three maintained the entry condition, with ample trail buffers of 27-30%. However, the index gain rests on a handful of large caps, so adding new exposure is deferred until after CPI.
Watch
The entry condition held, but the trail buffer stayed at 2-6% all week, and all six discussions ended in SKIP. A recovery in moving-average alignment and getting past CPI are the conditions for a re-review.
Watch
They fell out of the entry condition on 10-08 and 10-06 respectively, but copper futures rebounded +3.08% on the week. With trail buffers of 9-12%, this is not an urgent exit signal. Wait for a re-entry signal.
Hold, keep avoiding
The entry condition remained unmet, and the trail buffer is thin at 4.71%. With the 10-year yield at 5.24%, a CPI result could move it sharply in either direction.
Watch
Entry condition unmet, trail buffer -5.10%. Whether the 10-09 bounce confirmed a bottom near the prior low of about $4,100 will be judged by the direction of real yields after CPI.
Weekly Signal Events
- New entry conditions met: DBB (10-05), TSLA (10-05, 10-09), ROKT (10-06), XLE (10-08), XLV (10-09)
- Entry conditions lost: DBB (10-06), TSLA (10-06), ROKT (10-07), EWY (10-07), CPER (10-08), SMH (10-09)
- Entered trail risk zone: EWY (10-06, 4.39%→10-08 -0.19%), SPCX (10-07, 4.28%), AIPO (10-07 re-entry, 4.42%), AVGO (10-08, 3.00%), BOTZ (10-08, 3.55%)
- In the trail risk zone since the start of the week: AIPO (3.30%), TLT (3.36%), GLD (-6.14%), ROKT (-3.19%)
Weekly Discussion Review
| Date | Ticker | Verdict | Headline | Subsequent weekly move | Review |
|---|---|---|---|---|---|
| 10-05 | AIPO | SKIP (0.0, HIGH) | Trail under 3% plus severe technical fragility. Signal not executed this time. (Trail 2.98%) | -0.10% | Correct. The trail buffer narrowed to 2.18% during the week, so an entry would have come close to the stop |
| 10-05 | EWY | REDUCE (0.5, MEDIUM) | Semiconductor export fundamentals remain valid, but a buyback-expiry flow cliff and rate pressure argue for entering at only 50% of normal size. (Trail 6.87%) | -7.63% | Partly correct. Half size limited the loss, but SKIP was the right call given the 10-08 stop breach |
| 10-06 | AIPO | SKIP (0.0, HIGH) | Trail under 3% plus severe technical fragility. Signal not executed this time. (Trail 3.30%) | -0.48% | Correct. The rebound after the discussion lasted only one day |
| 10-06 | EWY | REDUCE (0.5, MEDIUM) | Semiconductor export fundamentals remain valid, but a buyback-expiry flow cliff and rate pressure argue for entering at only 50% of normal size. (Trail 6.68%) | -7.43% | Partly correct. The thin stop buffer the Bear flagged materialized |
| 10-08 | AIPO | SKIP (0.0, HIGH) | Severe technical fragility (tech_score 5, broken MA alignment). Signal not executed this time. (Trail 4.42%) | -1.80% | Correct. The Bear's warning that "a single event reverses it" was confirmed by the AI selloff the next day |
| 10-09 | AIPO | SKIP (0.0, HIGH) | Technically fragile with trail at 2.18% and tech_score 5. Signal not executed this time. (Trail 2.18%) | +0.87% | Verdict pending. A one-day rebound did not restore the trail buffer above the 4% threshold |
| 10-10·10-11 | AIPO | SKIP (0.0, HIGH, prior discussion reused) | Technically fragile with trail at 2.18% and tech_score 5. Signal not executed this time. (Trail 2.90%) | No weekend trading | Cannot be judged. Re-review after the 10-14 CPI |
Weekly Strategy Review
Entry signals held in core indexes and mega caps, but in themes and commodities, exits outnumbered new entries. Of six exits and six new entries, the new entries that survived to week-end were defensive names such as XLE and XLV, plus TSLA, while the exits were in cyclical and AI-exposed areas such as semiconductors, Korea and industrial metals. All eight discussions ended in SKIP or REDUCE, and screening out candidates with thin trail buffers avoided this week's declines. The half-size EWY entry limited losses but could not prevent the stop breach, leaving the lesson that for candidates with a trail buffer under 7%, standing aside was better than cutting size.
7. Weekly Sentiment Trend
| Date | Reddit verdict | Key topics |
|---|---|---|
| 10-05 (Mon) | Neutral | Micron's $54.23B revenue boom vs. record-high P/E, resumed attacks on ships near Hormuz |
| 10-06 (Tue) | Mixed | Cheers over Nasdaq record highs vs. cynicism of "only my account is down," $SPCX crowding, European bond stress |
| 10-07 (Wed) | — | Report not generated |
| 10-08 (Thu) | Bearish | 10-year yield breaks 5.3%, FOMC minutes hint at hikes, Dalio's AI bubble warning, CAPE at 41 |
| 10-09 (Fri) | Bearish | OpenAI revenue cut, Nvidia, Oracle and CoreWeave plunge, further Fed hikes |
| 10-10 (Sat) | Neutral | Call-option profit posts near S&P record highs vs. consumer sentiment at 46.3, SpaceX's telecom entry, Ledger theft |
| 10-11 (Sun) | Bearish | Skepticism over Anthropic IPO valuation, slowing AI debt financing, diesel at $6.28, Ledger hack |
8. Daily Summaries
| Date | Day | One-line summary | Link |
|---|---|---|---|
| 10-05 | Mon | September payrolls of +29,000 eased hike pressure; prior session S&P +0.73%, SMH +2.07%. Korea's September semiconductor exports hit $60.3 billion, topping $60 billion for the first time | Daily report |
| 10-06 | Tue | Nasdaq hit a record 27,477.31 (+1.05%) and Nvidia announced a $150 billion buyback. The 10-year yield at 5.31% moved apart from stocks | Daily report |
| 10-07 | Wed | Report not generated | — |
| 10-08 | Thu | S&P -0.22% just after a record high, with weakness beneath the surface as Russell -1.31% and XLI -2.18%. KOSPI 6,803.90 (-1.98%), foreign investors net sold 3.1 trillion won | Daily report |
| 10-09 | Fri | Nasdaq -1.25% and SMH -2.84% on the report of $50 billion in OpenAI revenue. KOSPI 6,625.93 (-2.62%) despite Samsung Electronics' 107.4 trillion won operating profit | Daily report |
| 10-10 | Sat | All three major indexes rebounded, S&P 7,811.54 (+0.59%), VIX 14.84. The three telecom carriers plunged on SpaceX's spectrum acquisition, while silver and copper rose together | Daily report |
| 10-11 | Sun | Weekly wrap: S&P +1.15%, Russell -0.91%, KOSPI -5.39%. The 10-14 CPI is the first test of the FOMC's hiking path | Daily report |
9. Next Week's Outlook
Key Scheduled Events
- 10-12 (Mon): Korean stocks reopen (reflecting the 10-09 Hangul Day closure), domestic ETF rebalancing, US bond market closed (Columbus Day)
- 10-13 (Tue): Earnings from major US banks (JPM, C, GS, WFC), UNH earnings, IMF World Economic Outlook. Reports differ on the bank earnings date, giving 10-13 to 10-14
- 10-14 (Wed): US September CPI (August headline +3.4% y/y), Korea's September trade balance
- 10-15 (Thu): US PPI and retail sales, TSMC and ASML earnings (per reports)
- 10-16 (Fri): Korea's September employment trends
- 10-18 (Sun): Most provisions of the US Russia sanctions law take effect (permitting tariffs of up to 500% on Russian imports)
- Later: 10-22 Bank of Korea rate-setting meeting (single source), 10-27~28 FOMC, 11-03 US midterm elections, 11-10 expiry of the US-China reciprocal tariff truce
Key Things to Watch
- September CPI and a retest of the 10-year's 5.36%: If higher oil pushes the print above expectations, the odds of a 10-28 hike rise and the 10-year yield moves above its weekly high. If it is in line, the 5.24% reached on strong auction demand settles in and growth stocks get some room to breathe.
- AI profitability debate vs. earnings confirmation: SMH sits near its weekly low of 600.32. If TSMC and ASML reaffirm demand visibility, part of this week's decline would be recouped, and if Oracle's credit worries spread to other AI infrastructure, the 600 level breaks.
- KOSPI reopening gap and foreign investor flows: The KOSPI is at 6,625.93 and USD/KRW at 1,342.99 won (-1.29% on the week, a stronger won). That foreign investors sold despite the strong won suggests profit-taking in large-cap semiconductors. Whether selling stops after ETF rebalancing ends will decide whether the 6,600 level holds.
- Whether the defensive rotation continues: XLU, XLP and XLV led at +2.8% to +4.0%. If that persists after CPI, the phase in which index highs coincide with narrowing breadth will last longer.
Risk Factors
- Hot CPI → long-term yields of 5.4-5.5%: Using a Wells Fargo estimate cited in the daily reports, a 10bp rise in the 10-year yield equates to roughly -2% for the S&P 500. Small caps (Russell 2000) and rate-sensitive sectors would be hit first, with mortgage rates rising further.
- Energy supply shock: Attacks on tankers near Hormuz are at their highest level of the conflict, and US strategic reserves are below 300 million barrels for the first time since 1983. If Brent tops $110, inflation re-acceleration and hiking pressure would compound.
- AI credit crunch: If the widening of Oracle's CDS to 261bp spreads into funding costs across AI infrastructure, the semiconductor decline would transfer to the index. Nvidia, Apple and Microsoft make up more than 21% of the S&P 500, so the index impact would be large.
- Fed independence controversy: If President Trump's investigation of Fed Governor Lisa Cook (10-09) widens, the term premium could rise further and the 30-year yield could move above 5.60%.
- Clash between trade and sanctions policy: The 10-18 Russia sanctions law taking effect could collide with the agreement to import Russian diesel, and if a deal ahead of the 11-10 expiry of the US-China tariff truce wobbles, semiconductor and materials supply chains would be affected.
This Week's Q&A
- The S&P 500 was near a record high this week, but the top performer was the utilities ETF (XLU). Did money flee into defensives, and will the trend continue next week?
- The semiconductor ETF (SMH) fell more than 4% this week, and TSMC reports earnings next week. If the results are good, will it rise again, or could it fall further?
- The signal discussion said to buy only half of the Korea ETF (EWY), and it fell more than 7% in a week. Did buying only half matter, and should I sell if I'm holding it now?