US & Hong Kong Market Digest (2026-08-05)

Report date: 2026-08-05 | Coverage: past 24 hours (US close Tue Aug 4 ET; HK close Tue Aug 4) Sources: Real-time X (Twitter) retrieval (three tracks: broad search, KOL whitelists, media whitelists, all since 2026-08-03); prices from Eastmoney index + Yahoo/Tencent close snapshots (as of Aug 4, ~7:00 pm ET); options flow from post-close automated scan. X posts represent their authors' views only.

Market snapshot: Dow 54,085.88 (+1.71%), S&P 500 7,736.52 (+1.79%), Nasdaq 26,584.99 (+2.59%) — a second straight strong US session; Hang Seng 25,852.92 (-0.60%), snapping a six-day winning streak.

1. Key Events

1. Palantir (PLTR) beat across every line in Q2 and raised full-year guidance; shares closed +29.45% ($162.66): per @BullTheoryio, total revenue $1.94B with US commercial revenue +149% YoY; FT reported CEO Karp claiming companies adopt its software "to avoid ceding data to leading AI developers" (@FT) 𝕏¹ 𝕏²
2. SpaceX (SPCX) delivered its first earnings report since its IPO: Q2 revenue +92% YoY to nearly $8B, beating estimates, driven by Starlink and AI; the stock closed +9.43% ($125.33) (@CNBC / @Reuters / @FT) 𝕏¹ 𝕏² 𝕏³
3. AMD closed +7.00% ($518.58) into its after-hours earnings release: data center revenue doubled YoY and capex jumped to $808M QoQ, but the after-hours reaction was cool (@PatrickMoorhead: "AMD wasn't going to impress the after-hours crowd… Helios starts shipping now and volumes ramp in Q4"); after-hours prices not verified against an exchange snapshot, so no figure given 𝕏
4. Semis rallied broadly: INTC +10.84% ($100.86), ARM +17.36% ($280.56), NVDA +2.56% ($211.94), SanDisk (SNDK) +10.84% ($1,427.62, Eastmoney-verified); Japanese finance blogger @sekihara_d noted "Intel and Arm sharply higher, memory names surging" 𝕏
5. Jeff Bezos filed to sell ~15 million Amazon shares worth roughly $4.1B (@CNBC); despite the bullish earnings backdrop, AMZN closed down 2.32% ($277.42) 𝕏
6. Earnings-driven single-stock swings clustered: Wayfair (W) +29.97% ("strongest US growth since 2020," via @joinlegendsonly), Caterpillar +5.60% ($876.54; @Schuldensuehner: "very strong earnings"), Zebra (ZBRA) +26.47%; on the downside Bruker (BRKR) -21.79%, Aptiv (APTV) -16.62%, NRG -15.48%, CMG -9.72% (no clear X-side attribution retrieved for the decliners; facts only) 𝕏¹ 𝕏²
7. Hang Seng closed -0.60% at 25,852.92, ending a six-day win streak: @bobchan833 noted "hold above 26,000 and the May 14 high of 26,844 stays in play; otherwise expect a pullback to the 10-day MA (~25,500)"; Hua Hong (1347.HK) bucked the tape, +6.55% (HK$135.10, Eastmoney-verified) 𝕏
8. Paramount Skydance raised full-year profit guidance and remains "confident" on the WBD merger (@CNBC); WSJ reported the Ellison team is gaming out options such as getting states to drop out of the suit to close the Paramount-Warner deal (@WSJ) 𝕏¹ 𝕏²

2. Institutional & Media Coverage

Factual reporting

• US tape drivers: @Reuters reported US stocks kicked off August strong as "signs of easing US-Iran tensions pulled down oil prices and Treasury yields during a busy week for earnings," sending the Dow to a record close Monday (@CNBC's Monday live blog flagged an intraday 1,000-point Dow leap); all three indices extended gains Tuesday (Dow +1.71%, S&P +1.79%, Nasdaq +2.59%, authoritative close) 𝕏¹ 𝕏²
• SpaceX debut earnings: @Reuters "a 92% rise in April-June revenue, buoyed by Starlink and AI"; @FT "nearly doubling quarterly revenues to almost $8bn," beating expectations. Context: per Payload (2026-06-15), SpaceX closed its June 12 first trading day at $161.11, 19% above the $135 IPO target — against that, the post-earnings close of $125.33 remains below the debut-day close 𝕏
• Palantir: @FT reported the full-year outlook raise on strong US demand; @CNBC listed PLTR among the biggest premarket/midday movers 𝕏
• Tesla/SpaceX angle: @Reuters reported "Tesla's China footprint complicates path to possible SpaceX merger"; TSLA closed +1.64% ($327.35, Eastmoney-verified) 𝕏
• SoftBank: @Reuters "SoftBank's AI funding plans to face reckoning at earnings" 𝕏
• AMD preview: @CNBC "AMD earnings are a key test for chips and momentum stocks — here's what the options market is saying" 𝕏

Opinion / ratings

• @FT Lex ran a pointed take on Palantir: "As a tool of war, Palantir's defence business does well when the world is fearful… Palantir rides high on greed and fear — but mostly fear" 𝕏
• @CNBC compiled Tuesday's biggest analyst calls covering Apple, Palantir, Micron, Walmart, Nike, CoreWeave, SK Hynix and more (call details not expanded in the post; no extrapolation) 𝕏

3. KOL Bull & Bear Views

Bullish

• @KobeissiLetter (macro, ≈1.6k likes / 187 reposts): "US stocks are cheap despite trading at all time highs. The S&P 500's forward P/E premium relative to global equities is down to ~22%, the lowest since 2020… S&P 500 profits currently tracking +28.7% YoY growth." 𝕏
• @charliebilello (macro, ≈319 likes): "S&P 500 Q2 earnings are on pace to rise 47% YoY, the highest growth rate since Q2 2021. We've never seen earnings growth this high outside of post-recessionary rebounds." 𝕏
• @biancoresearch (macro, ≈353 likes): "The $SPX is at a new all-time high. In the last 100 years, there's never been a recession in the month that the $SPX is at a new all-time high. This signals the economy is fine." 𝕏
• @RyanDetrick (strategy, ≈319 likes): "Manufacturing at a 4-yr high, as the economy continues to improve… You want to be OW equities." 𝕏
• @dnystedt (semis, ≈185 likes / 34 reposts): "Intel's EMIB-T advanced packaging costs 50% less than TSMC CoWoS… yields now exceed 90%… has already won Intel at least one AI ASIC chip project from MediaTek (likely a Google TPU). Broadcom and Meta are now evaluating EMIB-T." — INTC +10.84% on the day 𝕏
• @jukan05 (semis, ≈443 likes): "MediaTek seems quite optimistic about EMIB-T. (The excerpt below is from MediaTek's Q2 earnings call.) $INTC" 𝕏
• @dnystedt (semis, ≈52 likes): "TrendForce said AI server shipments are forecast to rise 31% year-on-year in 2026… The world's 9 biggest CSPs… are forecast to spend US$886.7 billion on capex this year, up 90% from 2025." 𝕏
• @PatrickMoorhead (semis, ≈99 likes), defending AMD's after-hours move: "Keep in mind that the datacenter doubled in Q2 YoY and Helios hadn't shipped. Helios starts shipping now and volumes ramp in Q4." 𝕏
• @investingtomars (China assets, low engagement): "The signal is clear: China is set to move higher… Hang Seng." 𝕏

Bearish / Cautious

• @TimmerFidelity (Fidelity macro, ≈67 likes): "The prize is the outsized total return driven by thriving earnings growth… But the obstacles are plentiful, from overconfidence (sentiment) to rising term premia (and therefore falling equity valuations)"; a companion post flagged "real rates are now at 2.45%… a less transparent Fed inevitably leads to a higher term premium" (neutral-to-cautious) 𝕏¹ 𝕏²
• @jukan05 (semis, ≈278 likes), relaying Eugene Investment & Securities (Korea): "If Rubin Ultra shifts from HBM4E 12Hi 384GB to HBM4 8Hi 192GB, NVIDIA's 2027 HBM demand would be revised down by roughly 10%" — the day's weightiest bear datapoint for the memory chain 𝕏
• @traders_kings (retail trader, low engagement): "How many times did i warn you? Dont get trapped just yet. Wait for the weekly close even if you want to be a bull. $AMD $sndk $intc $mu." 𝕏
• @leggah7 (retail, low engagement): "Really? $PLTR all the pump for the bigger dump?" 𝕏
• @bobchan833 (HK technicals, low engagement): "Hong Kong stocks ended their six-day winning streak… closed down 156 points at 25,852… If it holds above [26,000], there is still a chance to reach the May 14 high of 26,844. Otherwise, a pullback to the 10-day moving average (25,500) is expected." 𝕏

HK / China names

• Alibaba (9988.HK): @YoooJJ8cm highlighted the Qwen 3.8-MAX launch (2.4T parameters) alongside a big-rally claim — correction required: the "+7% single-day surge" cited in X posts refers to the prior session (Aug 3); on Aug 4 Alibaba's HK line closed just +0.48% (HK$125.80, Eastmoney-verified), i.e. most of the AI-catalyst move was already priced the day before 𝕏
• Flows: per @analyst_hk (not verified against exchange data), southbound funds net bought ~HK$2.57bn on Aug 4 — net buys in Alibaba (HK$1.549bn) and Hua Hong (HK$1.183bn), net sells in Meituan (HK$1.227bn) and Tencent (HK$0.723bn) — consistent with the tape: Hua Hong +6.55%, Meituan -0.80%, Tencent -0.57% (all Eastmoney-verified) 𝕏
• @AlphaguyTrading (≈7 likes, neutral jab): "Tencent and Alibaba still haven't made it back (to pre-2021 highs) 🤣" 𝕏
• @simu1880 (bullish HKEX): "HK IPO count is up 132% YTD… I've repeatedly been bullish on HKEX"; HKEX closed -0.24% on Aug 4 (HK$408.00, Eastmoney-verified) 𝕏

Note: the China-assets KOL whitelist (@HAOHONG_CFA, @michaelxpettis, etc.) and China-assets media whitelist (@yicaichina, @CnEVPost, etc.) returned no HK/China-relevant posts within the window on this retrieval — stated as-is, no extrapolation.

4. Buzz & Sentiment Shifts

• US market overall: buzz well above normal, driven by earnings density plus fresh index records. Sentiment is clearly bullish — macro KOLs almost uniformly cited earnings data (Kobeissi, Bilello, Bianco, Detrick), while cautious voices (Timmer's term-premium argument) drew an order of magnitude less engagement. Versus the prior day, focus rotated from "US-Iran de-escalation + falling oil" to the earnings flood; PLTR and SpaceX's debut report absorbed most of the attention.
• Palantir: the day's hottest single name, viral at the retail level (multiple posts with 10k-34k views); bull/bear split roughly 8:2 bullish, with only scattered "pump-and-dump" skepticism. FT Lex's "fear trade" column was the rare institutional cold shower.
• Semis: high buzz, bullish tilt (Intel packaging narrative, +90% CSP capex forecast), but a weighty bear datapoint emerged in memory (Rubin Ultra HBM de-spec, ~10% potential 2027 demand cut, ≈278 likes); AMD's cool after-hours reception may turn sentiment more guarded tomorrow.
• Hong Kong: buzz notably below the US side with low engagement throughout (mostly 0-7 likes), no viral threads. Sentiment neutral-to-cautious: technicians watch the 26,000 level after the streak ended, while bull narratives centered on Alibaba's AI (Qwen 3.8-MAX) and southbound flows into names like Hua Hong. Versus the prior day (six-day streak, largest southbound inflow since mid-July), sentiment cooled at the margin.

5. US Options Flow

Market-wide put/call premium ratio: 0.49 (<1 = bullish tilt). Most notable flows from the post-close scan of 162 liquid names:

Deep dives (the 2-3 most informative):

1. PLTR's two-way short-dated structure: $150-160 calls expiring in 3 days took ≈$184M in premium (vol/OI 2.3-6.4, heavy new positioning), while 3-day $150 and $157.5 puts printed vol/OI of 145.5 / 108.4 — the classic post-spike setup: chasing upside while paying for pullback protection after a +29% day. IV of 75-76% says the market still prices violent two-way moves, echoing the retail "pump for the bigger dump" worry — but call premium dwarfs the put side ($2.9M / $4.1M), so positioning remains firmly bullish.
2. MU $900 call (3-day, IV 120%): $78.0M of premium compressed into an ultra-short window with the highest IV on the board — the market is pricing an imminent, binary memory-sector event. Set against @jukan05's relay of the "Rubin Ultra HBM de-spec could cut 2027 HBM demand ~10%" thesis, this block is a head-on wager between memory bulls and the de-spec doubters.
3. Index-level "buying insurance into strength": QQQ $720 puts (vol/OI 156.6), SPY $770/$765 short-dated puts (122.0 / 95.0) were all fresh positions, alongside the SPY $630 108-day deep-OTM put block ($34.5M) — on a day the Nasdaq rose +2.59% to a record, institutions added systematic protection while staying long, corroborating @TimmerFidelity's "overconfidence + rising term premia" caution.

Bottom line: at a 0.49 put/call premium ratio, options sentiment is clearly bullish — but simultaneous surges in near-the-money short-dated puts and long-dated tail hedges make "stay long, pay for insurance" the defining posture of this record-high session.

(HK single-stock options data not connected; this section covers US listings only.)

Disclaimer: This report aggregates publicly available information (X posts, exchange close snapshots, options-scan data) for informational and educational purposes only and does not constitute investment advice. X posts represent their authors' views only; engagement figures are snapshots at retrieval time. Markets involve risk.