The mapResearch bank
Theses
Transformer lead times gate hyperscaler returns, not start datesPackage Perimeter Arbitrage: Optics Suppliers Capture Value NVIDIA Cannot RetainNAND Flash: Datacenter Crowding-Out Masked by Low Consumer PullCoWoS Binds the Buyer, Not the LandlordLong-context inference: memory constraint compresses cloud margin before GPU-poor plays feel itCo-packaged optics transfers margin to substrate integrators, not optics specialistsSilicon Wafer: Duopoly Capturing Nothing as Downstream Rents CompoundAdvanced Packaging: The Scarcity Premium Flows Upstream, Not DownAmazon: The Capex-Margin InversionMicrosoft: The High-Multiple Cloud Business Is Already SubscaleFoxconn: Margin Squeeze Masked by AI Server Revenue MixSK Hynix: The Packaging Bottleneck Inverts the Margin NarrativeGPU collateral decay gates buildout faster than physical supplyOracle: Monopsony Rent Capture Masked by Consolidated AccountingInnolight: Negative Operating Leverage Hiding in Hyperscaler ConcentrationInterconnection queue converts hyperscaler capex into generator rentEaton: Margin expansion telegraphs demand scarcity more than growth can showElectrical Steel Asymmetry: GE Vernova Captures Transformer Scarcity Without Steel ExposureConstellation: Hyperscaler Monopsony Masks Nuclear Fuel TransmissionABF substrate dual-gate arbitrage: substrate converters capture the spread the market assigns upstreamRack Power Density: The Liquid Cooling Adoption MirageArm: The Royalty Stream That Scales With Everyone's Margin but Its OwnHBM5: The Signal Integrity Bottleneck Transfers Margin to Silicon PHY DesignersShin-Etsu: Margin Expansion Masked by Commodity PVC ConsolidationSMIC: Subsidy Converts to Capacity Under Obscured Margin PressureSemicap service is an installed-base annuity, and the market still prices these names as capex cyclicalsAlphabet: The Capex Ratchet Liquidity Mispriced as Platform OptionalityPalantir: The Margin-Protected Infrastructure PlayAccelink: The Valuation Anomaly in China's Optical Chip IndigenizationTransceiver margin expansion is a mirage: buyer concentration at 1.6T resets pricing power the market prices as durableQualcomm's low capex masks an IP-only future neither consensus nor bears have pricedMurata: The Margin That Doesn't MoveApplied Optoelectronics: Hyperscaler Procurement Arbitrage Driving Negative SpreadsGlobalFoundries: Customer Concentration Masks Structural Insulation from AI Capex WhiplashSilicon capacitors expose Intel's package productivity deficitArista: Hyperscaler capex intensity conceals margin compression riskSilicon cannot emit light — indium phosphide is the chokepoint CPO relocates but cannot removeMoE inference: converted miners capture memory scarcity, hyperscalers leak itTesla: AI Pivot Insulated from Datacenter BottlenecksCustom Silicon Pays a Different MerchantThe ABF Chokepoint Does Not Pay Its Owners — Buy the Bottleneck Fails HereNVIDIA's Rent Compresses Through Software, Not SiliconThe China chokepoint moves from lithography to bonding — and the substitution trade is priced in the wrong categoryThe Upstream Is Single-Sourced and UnpricedOptical attach is set by topology, not by shipments — linear optical TAM models are mis-specifiedHBM moat vs. DRAM commoditization — is SK Hynix's HBM-mix 'miss' actually bullish?Power Caps the AI Buildout — the bottleneck moved from chips to megawattsEMIB Shifts the Packaging Bottleneck to SubstratesASML / China-DUV displacement is overpriced — the sell-off prices near-full substitution off a 5-machine data pointCost Per Token Is Set Outside the ChipChipflation Is a Wafer Allocation, Not a Demand ShockThe Neocloud Rent Is Consumed By The Asset Before It Reaches EquityMemory-demand durability — does algorithmic efficiency cap the memory super-cycle?HBM4 Qualification Concentrates Share, Not Spreads ItNeocloud margin re-rating — do open-source deployment + rising rental rates break the thin-margin cap?The Megawatt Is the Unit of Account
Mechanisms
ABF substrate and build-up film supplyCoWoS advanced-packaging capacityConventional DRAM and NAND supply (HBM crowding-out)GPU residual value as loan collateralGrid interconnection queue positionHeavy-duty gas turbine delivery slotsLarge power transformer lead timesBuyer concentration tighteningHBF consortiumRent converting into capacityRent migrating upstreamRent not being competed awayco-packaged-optics displaces copperco-packaged-optics displaces optical-transceiveremib displaces cowosglass-substrate displaces abf-substratehybrid-bonding displaces euvsilicon-capacitor displaces mlccChip designDatacenter mathEfficiency arrives in steps, not trendsInference shapeMemory economicsPhotonicsTau scalingToken mathTokenomicsCapacity arriving — CoWoS (Chip-on-Wafer-on-Substrate)Capacity arriving — HBM4Capacity arriving — Silicon Wafer

Buyer concentration tightening

countervailing  a named mechanism, not a conclusion

These names sell into a concentrated buyer set — above 2,500 on a Herfindahl, and several above 5,000, which is two or three customers. Pricing power sits with the buyer, and a qualification win reads as revenue while it is actually dependence.

The path

nodeeffect
IREN Limited-1.00
Oracle Corporation-1.00
Custom AI ASIC (XPU)-1.00
Interconnect bandwidth (scale-up and scale-out)-1.00
Cipher Mining Inc.-1.00
Applied Digital Corporation-1.00
Core Scientific, Inc.-1.00
Lambda, Inc.-1.00
JX Advanced Metals Corporation-1.00
Kioxia Holdings Corporation-1.00
Lenovo Group Limited-0.71
MediaTek Inc.-0.69
coverage

customer_hhi SQUARES customer shares, so error in the undisclosed supply weights is squared with it. This is the least reliable quantity the desk computes and the ordering should be treated as indicative only.

Arguments about this mechanism

None yet. No thesis names this mechanism’s subject, which is a gap in the bank rather than a fact about the mechanism.

Arguments that run through it

These name a node on the path rather than the subject, so they pass through this mechanism without being about it. Shown separately and never graded as claims about it — hubs above the graph’s own 90th-percentile degree are excluded, or every argument touching NVIDIA would attach to every mechanism NVIDIA touches.