Joshua Wilkosz

Engineer. Builder. Melbourne / Boston.

github.com/wilkosz | linkedin.com/in/wilkosz | [email protected]

Software engineer and technology lead. Mechatronics (Masters) and Mechanical Engineering (Bachelors), University of Melbourne. I like small, talented teams that move fast, and businesses with a real moat.

what i build | agent's take | portfolio | agent picks | ai bellwethers | next fortnight | companies i love | news | research log


What I build

Agent's take

last updated: 2026-08-26T02:53 (UTC)

What changed since the last run

Australia's July CPI ran hot: headline 3.5% y/y (consensus 3.2-3.3%, June 3.8%) and trimmed mean steady at 3.6%; September RBA hike pricing rose to ~27% from 17%, AUD/USD 0.718, and the ASX 200 faded to flat at 9,160 with energy -2.5%. Asia is mixed into Nvidia: Kospi +1.6% (Samsung +1.0%, SK hynix +1.2%), Taiex +0.6%, Hang Seng +1.0% with Alibaba HK$116.10 (+1.7%) as its HK$80B placement settles, Nikkei flat. S&P futures -0.2%, Nasdaq futures -0.4%, 10-year 4.64%, WTI $80.48 (-2.3%) on Iran-Oman talks over a temporary Hormuz corridor, bitcoin ~$78,900. Bloomberg reports Meta and the state AGs have discussed a mid-trial settlement of the teen-harm case. Tonight 22:30 AEST: July PCE (core 3.3% y/y consensus) and the Q2 GDP revision; then Nvidia ~6:30am AEST Thursday (consensus $92.2B revenue, ~$2.08 EPS, Q3 bar ~$104B, guide assumes no China data-centre revenue), Marvell ~6:30am AEST Friday and Warsh at Jackson Hole 12am AEST Saturday.

Portfolio (what I'm invested in)

tickerweightagent take
AMZN:US2.5%hold — Closed down 0.4% at $261.06 and $260.89 after hours; nothing new overnight (the only AWS item circulating is an April recap of the Bahrain drone strike, not a fresh event). PYMNTS puts Amazon at 17.8% of US clothing spend versus Walmart's 6.0%, but AWS is what matters. With $220B capex, Bezos selling and state antitrust suits capping the multiple, hold.
AXOS:US0.4%hold — Closed up 1.9% at $98.82, flat after hours, and quiet overnight after Tuesday's NYSE Texas dual-listing. Benchmark's $120 target (Aug 17) and 17% ROE support holding.
BABA:US0.9%watch — ADR closed up 0.8% at $119.44. Hong Kong 9988 is trading HK$116.00, up 1.6%, at 10:26 HKT as the HK$80B placement settles today, with the Hang Seng up 1% and an intraday high of HK$117.80; that is 2.9% above the HK$112.70 placing price after Jack Ma (>HK$600M) and Joe Tsai (another 720,000 shares, HK$81.7M) bought Tuesday. The placement is absorbing for now, but one session is not a base; keep watching for a hold above HK$117-118 before adding.
ENPH:US1.4%watch — Closed up 0.5% at $37.35 and $37.26 after hours, nothing new overnight. Q3 revenue guide of $290-320M is below last year and the Dutch net-metering push, AI assistant and IQ Battery C80 are incremental, so stay on the sidelines until residential demand stabilises.
FIGR:US6.9%hold — Closed up 6.5% at $41.14 ($40.94 after hours), no follow-on news after the EDX Markets YLDS collateral integration. Q2 revenue +121% to $198.8M and marketplace volume +132% to $4.3B underpin Bernstein's $70 target; hold and let execution play out.
GOOGL:US1.0%add — Closed down 0.3% at $346.96 and $347.20 after hours. New overnight: Google Cloud launched Gemini Enterprise for Legal in preview with Cleary, Freshfields, Weil and Williams & Connolly as customers and Harvey, iManage, NetDocuments and Relativity as connectors, alongside Tuesday's Financial Services vertical. Drivers unchanged: Cloud +82%, Morgan Stanley's ~$200B TPU cloud case, and the stock ~3% under its 50-day near $358, so the dip remains an entry.
LDI:US0.3%trim — Closed up 3.7% at $0.92 ($0.94 after hours), still under the $1 NYSE threshold with a six-month cure window from the Aug 21 notice; nothing new overnight. Goldman is at Sell with a $1 target; compliance and reverse-split or dilution risk argue for reducing exposure.
META:US5.0%hold — Closed up 2% at $570.05, then $567.75 after hours. New overnight: Bloomberg reports Meta and the state attorneys general have discussed a mid-trial settlement in the second week of the Oakland teen-harm trial; Meta's own worst-case estimate is $1.4T of exposure, Bloomberg says any deal would be substantially smaller, and Meta has not commented. Earlier Tuesday Mosseri conceded few teens knew about 'Take a Break' and that Instagram struggled for years to get them to use it, while denying any suppression of risks. A settlement would lift the biggest overhang on a stock ~26% down YTD with $125-145B capex; hold until terms surface.
MRVL:US0.9%hold — Closed up 4.8% at $240.38 ($241.52 after hours) on Rosenblatt $300, Susquehanna $265, HSBC $325 and Wells Fargo $310 target moves tied to the Google warrant deal; nothing new overnight. Thursday's print (Fri ~6:30am AEST) faces ~$2.71B revenue and $0.93 EPS consensus, but the bar is Q3 guidance versus the $3.03B street number; with the stock up ~160% YTD and options implying a ~12% move, hold through the report.
MU:US2.1%hold — Closed up 2.5% at $932.97 ($935.00 after hours). New overnight: CEO Sanjay Mehrotra sold 39,994 shares for $38.7M at $959-990 on Aug 21 under a January 10b5-1 plan, keeping 264,503 shares directly and 607,075 via GRATs, a routine sale not a signal. Korea read-through is mildly positive: SK hynix +1.2% and Samsung +1.0% at 11:18 KST with the Kospi up ~0.9% early. Gartner's $837B 2026 memory revenue call and the HBM sold-out story hold; Nvidia's print tonight is the swing factor, so hold.
NFLX:US0.6%add — Closed up 2.8% at $82.23 ($82.16 after hours) on Wolfe's $95 target (22x 2028 EPS of $4.41); overnight adds only a GTA VI extended-look premiere and the Shonda Rhimes five-year renewal. Still ~36% below the 52-week high with ad-tier, NFL and Peacock/Fox One hosting optionality, so the valuation reset remains an add.
NVDA:US0.8%hold — Closed up 2.2% at $213.05 ($214.17 after hours) into the print (Thu ~6:30am AEST); S&P futures 7,677 (-0.2%) and Nasdaq futures -0.4% overnight, Nikkei -0.4%. Fresh notes are all bullish: BMO reiterated Buy with $340, Raymond James $352, BofA calls the valuation compelling. Consensus $92.2B revenue and ~$2.09 EPS, Q3 guide bar ~$104.2B at ~75% gross margin, Rubin ~$9B of Q3 per Morgan Stanley, and questions on the $500B customer financing and $105B OpenAI lease guarantee; options imply 5-6%. Hold and reassess after guidance.
RKT:US0.4%hold — Closed up 1.5% at $14.30, unchanged after hours and quiet overnight; the 10-year at 4.63% helps refi at the margin, but after the ~50% run and Q2's 9.6% post-earnings drop the shares look fully priced, so hold.
TSM:US0.6%add — Closed up 1.8% at $417.41 ($417.76 after hours). Taipei is quiet ahead of Nvidia: 2330 at NT$2,405, +0.2%, at 10:29 local after dipping 0.4% at the open; no new company news. With 40%+ 2026 growth guidance, Apple's 2nm M6 and up-to-10% 2027 price rises, the pullback from the June NT$2,535 high remains a buying opportunity.
STRIPE:private16.6%hold — No new valuation event overnight; the OpenRouter acquisition (~$7B), Treasury in Australia and the Singapore payment-method expansion are steady growth, not a mark change, so hold the private position. Marked at 2.27x cost: latest valuation ~$159B (2026-02) vs ~$70B at entry (https://techcrunch.com/2026/02/24/stripes-valuation-soars-74-to-159-billion/).
OPENAI:private59.7%hold — New overnight: 9fin reports Goldman Sachs Asset Management is arranging a $6.6B privately placed, GPU-backed debt package for OpenAI with an Nvidia backstop, debt rather than equity, so no mark change. Open questions remain the senior departures ahead of a 2027 IPO, ~$750B of planned compute spend and whether Jalapeno's per-watt claims translate to 2027 volume; Nvidia's call tonight may add colour on the $105B Ohio guarantee. Private, so hold. Marked at 5.43x cost: latest valuation ~$852B (2026-08) vs ~$157B at entry (https://techcrunch.com/2026/08/10/openai-reportedly-completed-a-7-billion-employee-tender-offer/).

weight = share of portfolio by estimated value: public holdings at last research-run prices, private holdings at cost marked to the latest reported valuation.

Agent picks (researching for future growth)

AI

Internet

Machinery

Energy

AI bubble bellwethers (is compute being sold at a discount?)

The single best AI-bubble bellwether is the rental price of an installed Nvidia GPU, measured in dollars per GPU-hour, and specifically the H100: it is the daily marginal clearing price for AI compute, it is published by independent indexes (Silicon Data's SDH100RT, SemiAnalysis's one-year contract index), and from October 5, 2026 it becomes a CME futures contract, so the market will show a forward curve as well as spot. Right now it is saying the opposite of discounting: the Silicon Data index sits at $2.53/hr, one-year contract rates rose about 40% from $1.70 to $2.35 between October 2025 and March 2026, spot has run at roughly twice contract, and a four-year-old chip is renting for more than it did a year ago while CoreWeave says it has contracted 2020-vintage GPUs out to 2029 at full price. Pair it with three things: neocloud credit spreads (CoreWeave's July loan cleared at SOFR+550 for a 10.44% yield with maintenance covenants, and its CDS implies roughly a coin-flip default probability), which is the financing leg and the one signal already flashing red; server DRAM and HBM contract-price momentum (+13-18% QoQ in 3Q26 after +93-98% in 1Q26, with 4Q26 guided to only +3-8%), because memory is the first physical input that will roll over; and hyperscaler backlog growth versus capex growth (Microsoft commercial RPO +84%, Oracle RPO +363%, roughly $2.4 trillion of committed cloud backlog against about $1 trillion of 2026 capex), because the bubble only deflates if the buyers stop signing. Over the next one to two quarters watch Nvidia's August 26 print for gross margin and customer concentration (three direct customers were already 54% of revenue), the shape of the CME H100/B200 curve once it lists (a steep backwardation would be the first public forecast of discounting), whether 4Q26 memory contract talks and 2027 HBM4 pricing turn negative, and what ERCOT's December audit says about how much of Texas's 474 GW interconnection queue is phantom demand. The threshold that would flip the call is simple: the H100 index sustained below about $2.00/hr, or spot trading below the one-year contract rate, while Blackwell and Rubin volumes keep arriving; until then compute is being sold at a premium, not a discount, and the risk lives in who is borrowing to build it rather than in the price of the product.

indicatorreadingtrendsignalwhy it matters / what to watch
H100 rental price, $/GPU-hour (Silicon Data index; 1-yr contract and spot)
2026-08-25
$2.68/hr index (0.0% 7d); 1-yr contract $2.35 (Mar-26) vs $1.70 (Oct-25); spot ~$4upbullishThis is the marginal clearing price of installed AI compute and the most direct public read on whether capacity is being discounted; it is published daily and becomes a CME-listed futures contract on Oct 5, 2026.
watch: Bearish flip if the Silicon Data H100 index holds below ~$2.00/hr for a month, if spot trades below the one-year contract rate (inversion), or if the CME H100 curve lists in steep (>15%) backwardation; the Oct-2025 trough of $1.70 is the floor to remember. — source
B200 / Blackwell rental price, $/GPU-hour (on-demand)
2026-08-25
$5.50-6.80/hr at neoclouds (RunPod $5.98-6.79, Lambda $6.69); ~$5 in Jan-26upbullishBlackwell is where new supply lands, so this is the first place a glut would show; if B200 rates fell toward H100 rates while Rubin ships, capacity would be outrunning demand.
watch: Bearish if tier-1 neocloud B200 on-demand drops below ~$4.50/hr, if the B200/H100 price ratio compresses below ~2x, or if lead times for 8-GPU Blackwell nodes fall to same-week availability. — source
Legacy-GPU residual value: used H100 prices, A100/H100 rates and booked useful lives
2026-08-25
2020-vintage GPUs contracted to 2029 'at full freight'; MSFT servers 2-6 yrs, Meta 5.5 yrs (no 2026 stretch)flatbullishDepreciation is the biggest cost in a GPU cloud; if old chips still earn money the 5-6 year accounting lives hold and no write-downs are coming, whereas collapsing used-H100 prices would be the first hard evidence of oversupply.
watch: Bearish if 8-GPU H100 servers trade below ~50% of new-build cost on the secondary market, if A100/H100 rental rates fall below ~$1.50/hr, or if any hyperscaler extends server lives beyond 6 years to flatter earnings; also watch for Hopper impairments at neoclouds. — source
All-in AI data-center build cost, $ per GW (with GPUs / ex-GPUs)
2026-08-25
~$47B/GW Vera Rubin (≈$32B racks + ≈$15B shell/power/cooling); ~$1.3B/yr electricityupneutralCost per GW sets the revenue a campus must earn per GPU-hour to clear its cost of capital; rising cost means supply is constrained (good for rental prices) but raises the bar for returns and the size of the debt stack.
watch: Discounting signal if Nvidia rack ASPs or $/GW start falling (Nvidia gross margin guided below ~72%, rack prices cut) while rental $/hr does not rise; bubble-risk signal if ex-GPU cost (power, shell, turbines) keeps inflating faster than rental rates. — source
Server DRAM / HBM contract price momentum (QoQ) and DRAM spot
2026-08-25
+13-18% QoQ 3Q26 (after +93-98% 1Q26, +58-63% 2Q26); TrendForce now sees server DRAM ~+270% cumulative in 2026, HBM +70-140% in 2027; DDR5 16Gb spot $54.17 (flat)upbullishMemory is the tightest physical input to AI servers (HBM is 25-30% of a Rubin rack) and contract prices are negotiated quarterly, so this is the earliest cyclical input to turn; a price rollover would precede GPU discounting.
watch: Bearish when server DRAM or HBM contract prices go negative QoQ (TrendForce already guides 4Q26 to only +3-8%), when 2027 HBM4 contracts are signed at lower prices, or when DRAMeXchange DDR5 spot falls >20% from peak; also watch whether CSPs start cutting memory per system, which TrendForce now flags as their cost response. — source
Power constraint: ERCOT interconnection queue, gas-turbine backlog and lead times
2026-08-25
474 GW ERCOT requests across 1,800+ projects (~427 GW data centers) vs ~193 GW installed; GE Vernova turbine backlog 116 GW; ~5-7 yr lead timesupbullishPower, not chips, is now the binding constraint on new capacity, which keeps installed GPUs scarce and rental prices firm; it also reveals how much announced demand is speculative once regulators force projects to prove financing.
watch: ERCOT files its Batch Zero eligibility-verification and community-impact reports by Dec 10, 2026 for the Dec 17 PUCT open meeting, with RFIs going out Aug-Sep and cure periods Oct-Nov: large queue withdrawals (BNEF flags 49.8 GW at risk) would show phantom demand. Turbine slot cancellations or resales, falling data-center PPA prices, or turbine prices retreating from the $600/kW 2027 forecast would signal the build is slowing. — source
Hyperscaler capex vs cloud backlog (RPO) growth, and capex as % of cloud revenue
2026-08-25
2026 capex ≈ $1.0T (102% of cloud revenue); backlog ≈ $2.4T (MSFT $678B +84%, ORCL $638B +363%, GOOG Cloud $514B, AWS $496B)upneutralCapex is the supply side and RPO is the contracted demand side; as long as backlog grows faster than capex the build is pre-sold, but capex above 100% of cloud revenue with negative free cash flow means the cycle is now funded by debt and equity and is sensitive to any demand wobble.
watch: Bearish if RPO growth decelerates below capex growth for two quarters, if 2027 capex consensus (+57% per Morgan Stanley) gets cut or 'digestion' language appears, or if backlog concentration in a few AI labs (OpenAI, Anthropic) produces a cancellation or renegotiation. — source
Neocloud financing: CoreWeave loan/bond spreads, CDS, vendor backstops, customer concentration
2026-08-25
CoreWeave Jul-26 $2.6B loan at SOFR+550, 10.44% YTM; CDS ~855bp (Jul 29); vs Nebius $5B converts settled Aug 24 at 0.50% (2030) and 4.50% (2034), 40-45% premiumsflatbearishNeoclouds are the levered marginal builder of GPU capacity; their cost of debt, covenants and dependence on Nvidia backstops show whether lenders still believe rental prices will cover depreciation, and they are the first place a compute-price decline turns into forced selling.
watch: Escalation if new deals price above SOFR+600 or 11% yields, CDS above 1,000bp, deals pulled or downsized, Nvidia's rent-back backstop extended to tier-1 neoclouds, or a top customer (CoreWeave's A/B/C are 36%/26%/10% of revenue) renegotiates; improvement if spreads retrace toward the April 9.75% level or if CoreWeave can tap convertible/equity-linked money on Nebius-like terms. — source
Nvidia data-center revenue growth, gross margin and customer concentration
2026-08-25
DC rev $75.2B +92% YoY (Q1 FY27); GAAP GM 74.9%; Q2 guide $91B, GM 75%; top-3 direct customers 54% of revenueupneutralNvidia's margin is the purest read on whether GPUs are being discounted at the source, and its concentration plus growing vendor-financing (backstops, campus guarantees) shows how much of demand is circular.
watch: Bearish if gross margin is guided below ~72%, data-center revenue grows <5% sequentially, three-customer concentration exceeds 60%, receivables/DSO climb, or backstop commitments expand further; report due Aug 26, 2026. — source

signal is from the AI-infrastructure investor's view: bullish = still supply-constrained, bearish = compute being discounted / oversupplied.

Next fortnight (what to watch or listen to)

2026-08-26 to 2026-09-09 (UTC dates). Times as published by the source.

Wed 2026-08-26

Thu 2026-08-27

Fri 2026-08-28

Mon 2026-08-31

Tue 2026-09-01

Wed 2026-09-02

Thu 2026-09-03

Fri 2026-09-04

Mon 2026-09-07

Tue 2026-09-08

Wed 2026-09-09

Companies I love

News

2026-08-26

2026-08-25

[+] positive, [-] negative, [n] neutral

Research log


Nothing here is financial advice. Holdings and opinions are my own; the "agent" sections are written by an automated research skill and may be wrong. Built 2026-08-26 02:53 UTC.