US & Hong Kong Markets — Weekend Wrap (2026-09-28)

Report date: Sept 27, 2026 (ET) — markets closed for the weekend ｜ Price data as of the Sept 25, 2026 close (Eastmoney indices + Yahoo US closing prices + Tencent Securities snapshot) ｜ Social data: X (Twitter), trailing 72 hours from 2026-09-24 Last session: Dow 51,828.62 (+0.93%) ｜ S&P 500 7,743.41 (+0.51%) ｜ Nasdaq Composite 27,068.72 (+0.48%) ｜ Hang Seng 24,510.09 (-1.01%) Note: every price and percentage move below comes from the authoritative closing data above. X posts are used only for events, views and sentiment.

1. Key Events

1. Xi-Trump summit in Washington; US-China trade truce extended — @business reported the truce arrangement was extended, and @CNBC's morning wrap confirmed Xi Jinping had arrived in Washington, D.C. The single biggest shared macro variable for both US and HK equities this week. 𝕏¹ 𝕏²

2. Mainland-HK derivatives connectivity to expand — @business reported China plans to widen its main derivatives trading link with Hong Kong (Swap Connect adding new products), a structural positive for HKEX volumes. HKEX (0388.HK) closed Friday at HK$388.40, -1.27%. 𝕏

3. Long-end yields at multi-year highs, the dominant equity headwind — @KobeissiLetter: the US 30-year Treasury yield rose to 5.53%, highest since June 2004; the average 30-year mortgage rate reached 7.45%, highest since 2023. 𝕏¹ 𝕏²

4. Chips drove the week; AMD joins the $1T club — @StockMKTNewz's weekly recap showed semis leading (QCOM +13.6%, INTC +13.3%, AMD +12.7% on the week) and noted AMD has joined the $1 trillion market-cap club. Verified: AMD closed Friday at $630.63, +0.22%, market cap ≈$1.03T. 𝕏¹ 𝕏²

5. China's CAC summoned Alibaba, MiniMax, Xiaomi and other model developers — Per @kafkaup, the trigger was an Anthropic report on Chinese model providers' data sourcing; regulators subsequently summoned seven companies, several of them in IPO preparation: "for a company preparing to IPO, this kind of investigation goes straight into the risk-factors section of the prospectus." The share moves quoted in that post (Alibaba -4.4%, MiniMax -12.4% in a day) do not match exchange closes: Alibaba-W (9988.HK) closed Friday at HK$108.40, -1.45%, and MINIMAX-W (0100.HK) at HK$275.20, -1.36%. Event reported; the post's price figures are not used. 𝕏

6. Southbound flows bought HK stocks for a fifth straight week, diverging from the index — @skyvivijun tallied HK$23.1bn of net southbound buying this week, including HK$1.695bn into Tencent (southbound holdings up to 1.08bn shares, highest since May) and HK$1.24bn into Alibaba, even as the Hang Seng TECH index fell. Tencent (0700.HK) closed Friday at HK$436.60, -0.41%. 𝕏

7. Cybersecurity names hit hard — Authoritative closes show Zscaler (ZS) -10.06% to $193.05, SentinelOne (S) -6.67%, Tenable (TENB) -6.66%, SailPoint (SAIL) -6.69% on Friday, the most concentrated sector cluster on the decliners list. No corresponding event coverage surfaced on X, so the cause remains unconfirmed.

8. DeepSeek ARR reaches $1 billion — @jukan05, citing The Information: DeepSeek's ARR has hit $1bn; 70% of its compute goes to training and 30% to inference, and it runs smaller-model inference on NVIDIA gaming GPUs to free up training capacity. 𝕏

2. Institutional & Media Coverage

Factual reporting

• Tape prints: @FirstSquawk posted daily levels — Sept 24 close: Nasdaq +0.04% at 26,945.85, S&P -0.03%, Dow -0.29%; Sept 25 open: all three modestly higher. Combined with the authoritative close, Friday ended with all three indices up and the Dow leading (+0.93%), i.e. momentum built through the session. 𝕏¹ 𝕏²
• Event checklist: @DeItaone listed the Sept 24 watch items — NY Fed's Williams, jobless claims, new home sales, EIA natgas, a $44bn 7-year auction, Costco earnings after the bell, plus Trump-Xi summit and trade headlines. 𝕏
• Weekly winners and losers (weekly basis, via @StockMKTNewz / @wallstengine): semis and META led (META +12.9% on the week); software and some financials lagged (ORCL -7.1%, ADBE -5.4% on the week). AppLovin (APP) is down 54% YTD, among the S&P's worst. Weekly and single-day directions differ: on Friday META actually fell 3.33% to $751.66, ORCL -1.75%, ADBE -1.45%, APP -0.55% — a strong week with a Friday giveback. 𝕏¹ 𝕏²
• YTD doublers: @StockMKTNewz listed 15 S&P 500 names that have doubled in 2026, led by SanDisk (SNDK) +648.93%, Micron (MU) +279.20% and Intel (INTC) +233.33%. Verified Friday closes: SNDK $1,777.80 (+1.38%), MU $1,082.28 (+0.16%), INTC $123.00 (-3.45%). The same account flagged NVIDIA as the best S&P performer of the past decade and Bloom Energy as the second-best over five years (BE +8.27% Friday to $288.70). 𝕏¹ 𝕏² 𝕏³
• Flow data: @ExanteData's notional ETF flow monitor shows the largest absolute 7-day flows in VOO (-$43.6bn), IVV (+$38.2bn) and SPY (+$26.9bn) — a pattern consistent with share-class migration rather than directional selling; at the sector level, inflows versus average concentrated in Broad Debt, Gold and Real Estate, with outflows from mid-, small- and large-cap equity. 𝕏¹ 𝕏² 𝕏³

Views / ratings

• @LizAnnSonders (Schwab Chief Investment Strategist): discussed "what rising interest rates are really signaling, why stock market strength is masking weakness in breadth beneath the surface, and how investors should think about bond allocations in a higher-for-longer rate environment." Core call: strong index, weak breadth. 𝕏
• @TimmerFidelity (Fidelity, Director of Global Macro): "As for the Fed, it raised rates last week as expected, and the market wants several more hikes. The SOFR curve is considerably more hawkish than the Fed's own dot plot... the 10-year real yield has now risen to above the economy's real potential growth rate." His allocation view: "a broadly diversified 60/20/20 model continues to make sense... currently it's Bitcoin and commodities in the lead, followed by the Mag 7... At the bottom are (what else?) long yields." 𝕏¹ 𝕏²
• @HAOHONG_CFA: US-China relations are again the market's focus; investors are watching whether the talks deliver substantive progress, while China still faces trade uncertainty, limited policy support and growth challenges. Neutral-to-cautious. 𝕏
• @PatrickMoorhead (Moor Insights): "I had predicted that the incremental CapEx that no one expected from AMD last Q was about standing up Helios racks, maybe even pre-staging them somewhere for their ODMs." Separately, from the GSA forum: OpenAI's XPU is "a full-stack bet on intelligence per watt," single campuses of 5–10 gigawatts by 2031, "power is performance," and the substrate is "the choke point" ($AMD, $AVGO). 𝕏¹ 𝕏²

3. KOL Bull & Bear Views

US index and flows

Bullish

• @RyanDetrick (Carson Group Chief Market Strategist) (≈47 likes): "The Mag 7 is back at a record... The Fed hiked 12-0 and the dots show one more hike in 2026. Headlines said hawkish, but real policy rates and the Fed's own projections point more dovish than markets are pricing... Sentiment is extremely bearish in a market that refuses to break." 𝕏
• @DMT_Doctor (≈15 likes): "$QQQ reached the weekly upper Bollinger Band... I have been aggressively buying dips" — a "hated rally." 𝕏
• @CheddarFlow (≈160 likes, 38k views): "$SPY BILLIONS Worth of Positive Gamma Positioning — Bulls are in control." Also logged "$AMD Options Flow: $9.9M 2028 $560 Call Sweep Lands as Shares Test Record Highs." 𝕏¹ 𝕏²
• @jukan05 (≈444 likes, 119k views): "I'm an AI Super Bull" — argues that, as in the dotcom era, the appeal of technology investment lets business investment hold up relatively well against rising borrowing costs. 𝕏
• @dylan522p (SemiAnalysis) (≈327 likes, 34k views): "Everytime AI spend grows where I flirt with token budgeting, Anthropic + OpenAI save me... it looks like spend is lowered for current usecases. Of course people figure out new things to do. Spend goes up again. ROI keeps increasing." Falling unit cost ≠ peak total spend. 𝕏

Bearish / cautious

• @KobeissiLetter (≈7.4k likes, 1.2k reposts): "The US Dollar has lost -23% of its purchasing power since 2020... Inflation has now been above the Fed's 2% target for 60-straight months." And (≈370 likes): "Rates are rising, inflation is rising, and asset owners will be the only winners. We believe this period of 3-4%+ inflation will persist into mid-2027." 𝕏¹ 𝕏²
• @Ksidiii (≈1,235 likes, 102 reposts, 313k views): "Over the last three months, there has been a repeatable and extremely sizable footprint in the /ES market that consistently comes in and drives equities lower... It's not due to gamma or delta hedging... it's not a vol control fund, it's not a pension or endowment." In another post (≈459 likes): the S&P is "less than 1% away from its all-time highs with S&P realized vol at 11," so "it would be statistically more accurate to question why the VIX is so high." 𝕏¹ 𝕏²
• @0xAralez (≈9 likes, 3 reposts): "$SPX IS SETTING UP FOR A MASSIVE DUMP... One last flush to the lower band (~$7,450) → Final squeeze to the channel top for the $8,000 test... EOY target: $6,300." Very low engagement; included only as a tail-sentiment sample. 𝕏
• @ExanteData's cross-asset model flagged just a -0.14% implied S&P move while futures were down 0.70% pre-open — a reminder that pre-market panic is often overstated. 𝕏

Hong Kong / China assets

Bullish (structural)

• @skyvivijun: HK$23.1bn of net southbound buying this week, a fifth consecutive week, with HK$1.695bn into Tencent — "Hong Kong stocks fell this week; the Hang Seng TECH index dropped 2.13%. Yet in that same week, southbound money net bought HK$23.1bn." Frames it as southbound accumulating core assets into weakness. 𝕏
• @birder_uk (very low engagement): "Support at 24,300–24,500; hold it and a recovery is still possible; 25,000 becomes the bull/bear line again... don't chase weak bounces, look for entries on strong pullbacks; favour single stocks over the index." The Hang Seng closed Friday at 24,510.09, right at the top of that support band. 𝕏

Bearish / cautious

• @AsiaFinance (≈119 likes, 20 reposts — the highest-engagement HK post found): over the past five years the Hang Seng has risen just 1.31% versus +73.8% for the S&P; shell-company prices have fallen from HK$500m to about HK$100m, and hundreds of small caps have become "zombie stocks." 𝕏
• @JTL19971224 (very low engagement): complained that HK turnover was only HK$102.2bn — "the entire market traded less dollar volume than Micron alone." 𝕏
• @kafkaup (very low engagement): argues the CAC summons is a single-stock compliance-cost issue rather than an index issue, hitting IPO candidates hardest (its price figures are unsupported by exchange data — see section 1). 𝕏
• @cnfinancewatch (≈9 likes), on A-shares but applicable to HK-listed China tech: the market is stuck in a standoff where "tech is expensive but nobody dares short it, consumer is cheap but nobody dares bottom-fish"; structural rebalancing may be underway but will not happen overnight. 𝕏
• @DaDaoCommunity (≈2 likes): "A little hope for dividend names; I don't even want to look at the Hang Seng anymore." 𝕏

4. Buzz & Sentiment Shifts

US indices: Chatter is at normal-to-elevated levels, but attention has shifted from direction to structure — the two highest-engagement index posts (@Ksidiii at 313k views, @KobeissiLetter at 7.4k likes) are about an unidentified source of selling pressure and about rates/purchasing power, not about the tape itself. Bull/bear is roughly balanced but stratified: institutional accounts (@RyanDetrick, @TimmerFidelity, @LizAnnSonders) all concede "strong index, weak breadth," while retail tails are polarised (@DMT_Doctor buying dips aggressively vs @0xAralez targeting 6,300 by year-end). Versus the prior day, with all three indices closing higher and the Dow leading (+0.93%), value/cyclical mentions picked up and breakdown talk cooled noticeably.

Semis & AI: The top buzz cluster of the week, driven by double-digit weekly gains in QCOM/INTC/AMD, AMD's $1T market cap, and SNDK's +649% YTD. Sentiment is clearly bullish (roughly 8:2), and the bull case has migrated from order books to power/packaging/HBM bottlenecks (@PatrickMoorhead) and to "falling unit cost, rising total spend" (@dylan522p). Note Friday's dispersion, though: INTC -3.45%, TSM -0.12%, AMD just +0.22%, while equipment and optical names took the baton (MXL +10.00%, VECO +9.28%, VIAV +9.27%, CRDO +7.65%, AEHR +7.15%) — strength is broadening up the supply chain.

Software & cybersecurity: The clearest negative shift of the week. @StockMKTNewz's recap already showed ORCL -7.1% and ADBE -5.4% on the week, and Friday brought a coordinated cybersecurity drawdown (ZS -10.06%, SAIL -6.69%, S -6.67%, TENB -6.66%), with Twilio also -7.96%. No corresponding event coverage surfaced on X, so this section stops at confirming price action and sector consistency — no attribution is offered.

Hong Kong: Buzz is below normal and skewed pessimistic. The Hang Seng closed Friday at 24,510.09, -1.01%, with tech-heavy weights broadly lower (Xiaomi -2.56%, Alibaba -1.45%, JD -1.80%, Kuaishou -1.57%, Tencent -0.41%). Bull/bear runs roughly 3:7, but one important divergence stands out: a fifth straight week of southbound net buying (HK$23.1bn) alongside a falling index. The main new negative is the model-developer regulatory summons, concentrated in IPO candidates; the main potential positive is Swap Connect expansion plus the extended US-China truce.

Week ahead (ET): ① Wed Sept 30, 08:30 — August Core PCE m/m (consensus 0.3%, prior 0.2%), the most direct test of the "3-4% inflation persists" narrative and of long-end yields; ② Fri Oct 2, 08:30 — September Non-Farm Payrolls (consensus 98K, prior 162K), Unemployment Rate (4.1%) and Average Hourly Earnings m/m (0.3%); ③ Wed Sept 30, 08:30 — Final GDP q/q (1.5%); ④ Thu Oct 1, 10:00 — ISM Manufacturing PMI (55.0, prior 54.6) and remarks from FOMC member Waller. All figures are consensus expectations; none have been released.

5. US Options Flow

(Post-close scan of 161 liquid names, as of 2026-09-27 04:54 ET; market-wide put/call premium ratio = 0.58)

Three flows worth unpacking

1. MU's stacked in-the-money call strikes ($1000/$1060/$1100, all 5-day, >$132m combined premium, IV 77–78%). Micron closed Friday at $1,082.28, just +0.16%, but is up 279% YTD (@StockMKTNewz) — the purest vehicle for the memory super-cycle. Three strikes active at once with IV near 80% but vol/OI only 0.8 (i.e. open interest was already large) reads more like rolling and repositioning of existing longs than fresh initiation. Meanwhile the 82-day $1,080 put (vol/OI 6.9, $18.9m premium) shows someone paying up for longer-dated protection on a very large gain. Still net bullish — but now paying for insurance.

2. QQQ / SPY 33-day put openings (vol/OI 19.4 and 9.2, >$72m combined), plus 2-day QQQ $736/$741/$744 puts (vol/OI 139/32/31). This dovetails with two threads in the social data: @Ksidiii's "repeatable, extremely sizable footprint driving equities lower," and his separate observation that realized vol is only 11 while the VIX looks high. Hedging is the better read than outright shorting — the index is within 1% of its highs and @CheddarFlow simultaneously observed billions in positive SPY gamma, so large accounts are buying cheap monthly protection against a low realized-vol backdrop rather than de-risking. The real tell is in IV: 21% on the 33-day QQQ put versus 19% on the 3-day call, a term structure that has begun to tilt upward.

3. TLT's extreme opening activity ($79 call vol/OI 146.8 alongside a 355-day $75 put at vol/OI 83.5). The most anomalous pair in the scan. With @KobeissiLetter flagging a 5.53% 30-year yield (highest since June 2004) and @TimmerFidelity noting the 10-year real yield now exceeds potential growth, simultaneous size on both sides of long-duration options — near-dated ATM calls plus deep OTM long-dated puts — looks like a straddle/risk-reversal style bet on the magnitude of the next rate move, not a directional view. Wednesday's core PCE print will test that disagreement immediately.

Overall: a 0.58 put/call premium ratio sits firmly in bullish territory — the bulk of premium is still long-biased (high vol/OI calls clustered in MU, NVDA, TSLA, SMCI, COIN, MSTR, MARA) — but the simultaneous size in index monthly puts and ATM XLF puts marks this as "stay long, pay for insurance" rather than outright greed. The IV structure says the same thing: 60–78% on single names versus 14–21% on indices, i.e. volatility risk is being priced into stocks, not the market.

This report compiles publicly available information and real-time search results for informational and educational purposes only. It is not investment advice, a recommendation to buy or sell any security, or personalised financial guidance. Views quoted from X represent their authors alone and not this platform. Third-party figures (weekly moves, fund flows, ARR, etc.) are presented on the original poster's basis; those not independently verified are flagged as such in the text. Investing involves risk; past performance does not indicate future results.