## PART XV - SECTOR PLAYBOOKS | MODULE 101 # Medical Devices Analyst Playbook > Mission. Build a sector-specific research system for Medical Devices that converts operating data into financial outcomes, highlights the accounting areas most likely to distort comparability, and selects valuation methods that reflect the sector's economics. ## Economic engine and binding constraints Model procedure volumes, installed base, utilization, ASP, consumables/service attach, placements, reimbursement, salesforce productivity, manufacturing yield, and R&D. Separate capital placements from recurring high-margin pull-through. ## Primary KPI stack | KPI | Construction / analyst control | | --- | --- | | procedure volume | Number of procedures performed using the relevant therapy/device during the period, adjusted for reporting coverage and seasonality. Validation: Recalculate independently from cited source data; verify definition, period, units, scope, signs, and any reconciliation to reported financial or operating totals. | | installed base | Number of active installed systems/devices available for clinical/commercial use at period end, net of removals and inactive units. Validation: Recalculate independently from cited source data; verify definition, period, units, scope, signs, and any reconciliation to reported financial or operating totals. | | utilization | Actual productive output or occupied capacity divided by practical available capacity after planned downtime, yield loss, and maintenance constraints. Validation: Recalculate from same-scope numerator and denominator; confirm period, units, cohort/geography, and issuer definition; reconcile material differences to filings or operating data. | | ASP | Revenue attributable to the relevant product family divided by units sold/shipped, adjusted for rebates, mix, and channel treatment. Validation: Recalculate price/cost from underlying dollars and physical units; test mix, rebates, FX, timing, and unit-definition effects; reconcile to reported revenue or expense. | | consumables | Disposable/recurring product revenue or units per installed system/procedure, with utilization and pricing separately identified. Validation: Recalculate independently from cited source data; verify definition, period, units, scope, signs, and any reconciliation to reported financial or operating totals. | | service | Service/maintenance revenue per installed system or as a % of total revenue, with contract attach and renewal rates where available. Validation: Recalculate independently from cited source data; verify definition, period, units, scope, signs, and any reconciliation to reported financial or operating totals. | | gross margin | Gross margin = gross profit / revenue | | R&D | Research and development expense, plus material capitalized development when applicable, divided by revenue or analyzed by absolute spend and program mix. Validation: Tie the dollar measure to filed statements/footnotes; reconcile classification adjustments, one-time items, acquisitions/FX, and period consistency before using it analytically. | ## Sector-specific accounting and comparability traps - Warranty: reconcile issuer treatment with peer treatment and quantify the effect on reported growth, margin, cash flow, capital, or valuation before comparing outputs. - Inventory obsolescence: reconcile issuer treatment with peer treatment and quantify the effect on reported growth, margin, cash flow, capital, or valuation before comparing outputs. - Capitalized software: reconcile issuer treatment with peer treatment and quantify the effect on reported growth, margin, cash flow, capital, or valuation before comparing outputs. - Acquisition intangibles: reconcile issuer treatment with peer treatment and quantify the effect on reported growth, margin, cash flow, capital, or valuation before comparing outputs. - Regulatory reserves: reconcile issuer treatment with peer treatment and quantify the effect on reported growth, margin, cash flow, capital, or valuation before comparing outputs. ## Valuation frameworks - EV/EBITDA: enterprise value divided by normalized EBITDA; adjust leases, pensions, minorities, recurring restructuring and capital intensity before peer comparison. - P/E: common equity value per share divided by normalized diluted EPS; normalize taxes, one-time items, dilution, cyclicality, and non-operating income. - DCF: forecast FCFF from operating drivers, discount at a capital-structure-consistent WACC, model terminal growth/ROIC coherently, and bridge enterprise value to common equity. ## Sector diligence questions - What is the most important leading indicator for Medical Devices, and how many months does it lead reported revenue or cash flow? ## Sector stress and falsification - Stress procedure volume and installed base together in the direction most likely to break the equity story; flow the result through working capital, capex, liquidity, financing, dilution, and valuation. - Explicitly test warranty. Determine whether it can make the reported sector comparison look better or worse without equivalent economic change. ## 99-point standalone execution extension ### Model architecture and forecast chain Model procedures, installed base, units per procedure, ASP, disposable pull-through, service, surgeon/hospital adoption, and gross margin. ### Leading-indicator dashboard Track procedure volumes, hospital capex, utilization, trial/approval milestones, reimbursement, sales-force productivity, and competitor launches. ### Primary-source map SEC filings; FDA 510(k), PMA, recall and MAUDE databases; CMS reimbursement; procedure-volume sources; hospital-capex disclosures; peer product launches. ### Accounting normalization test Consignment inventory, warranty, capitalized development, acquisition amortization, and distributor inventory can affect comparisons. ### Valuation implementation Use DCF, EV/EBIT, and growth/ROIC frameworks. Separate installed-base capital from recurring consumables/service economics. ### Worked numerical mini-case > Illustrative installed-base case. 5,000 installed systems generate 120 procedures each per year and $450 disposable revenue per procedure, implying $270m recurring disposable revenue before service. A 10% utilization increase adds $27m without new installs. Separate installed-base placements from utilization and disposable pull-through, then stress recall/reimbursement and sales-force productivity. ### Monitoring and falsification cadence Breaks include safety/recall, reimbursement, slower utilization, surgeon switching, hospital budget pressure, or installed base failing to generate expected pull-through. At every quarterly update, rebuild the driver bridge from operating units to revenue, margin, cash flow and valuation; compare leading indicators with the prior forecast; record definition changes; and precommit the threshold that would trigger a thesis reset rather than a cosmetic estimate change. ## Sector exit standard The Medical Devices work is complete only when the analyst can explain the business in its native operating units, reproduce the KPI history, identify the binding growth constraint and marginal price setter, normalize sector-specific accounting, quantify a coherent adverse case, and translate the current market price into the operating expectations that must be met or exceeded.