NB Bancorp, Inc.

NBBKdata completeness 88%4 fiscal years on file

Data notes: no data for concept 'totalDebt'

The thesis, from the filings

NB Bancorp, Inc. earns about 16% on invested capital, comfortably above its ~9% cost of capital — a real edge showing up in the numbers. The estimate methods put fair value between $9.94 and $90.14 a share.Whether it’s worth owning at today’s price is the last question — and yours to answer, below.

i. The business — what you’d actually own
FigureFY 2022FY 2023FY 2024FY 2025
Revenue$121M1$222.2M2$292.5M2$335.7M2
Net income$30.1M3$9.83M4$42.1M4$50.3M4
Operating cash flow$39.7M5$52.9M6$43.2M6$60.8M6
Capital expenditure$8.5M7$2.87M8$1.94M8$3.42M8
Free cash flow (derived)$31.2M5$50M6$41.3M6$57.4M6
Total debt
Cash & equivalents$156.5M9$272.6M9$363.9M9$407.6M9
Diluted shares042.0M39.4M37.6M

Superscripts are receipts. Each links to the SEC filing the number came from (full list at the bottom).

ii. Your slice — ownership made literal
If you owned
shares
Net assets behind them
$228.28
your share of equity
Profit it earned you last year
$13.37
Free cash flow it threw off
$15.25
Debt you’d be carrying

10 shares is a claim on $228.28 of net worth that earned you $13.37 and generated $15.25 of cash last year.

iii. Is this a good business?
Moat signal · return on invested capital
16% avg · 4y
FY22 23%FY23 17%FY24 11%FY25 12%

It earned about 16% on invested capital against a ~9% cost of capital — comfortably above the cost of funding, a moderate advantage.

seeing a moat in the numbers →
Management signal · capital allocation
shares · 4y

Not enough history to read capital allocation.

reading capital allocation →

Signals, not verdicts — read from the filings above. Numbers don’t prove a moat; they show its footprint. You decide.

iv. What it’s worth — engine v0.1.0

The 3 estimate methods that apply put fair value between $9.94 and $90.14 a share. They rest on different assumptions, so where they diverge is the story; the Graham Number is a stricter floor, not a target.

DCF · Growth Exit 10Y
$90.14
assumptions (10)
  • riskFreeRate4.7%
  • equityRiskPremium5.0%
  • beta100.0%
  • equityWeight85.0%
  • costOfDebtSpread1.5%
  • taxRate21.0%
  • terminalGrowth2.5%
  • projectionYears10
  • fcfGrowth20.0%
  • fcfBase$50M
DCF · Growth Exit 5Y
$54.19
assumptions (10)
  • riskFreeRate4.7%
  • equityRiskPremium5.0%
  • beta100.0%
  • equityWeight85.0%
  • costOfDebtSpread1.5%
  • taxRate21.0%
  • terminalGrowth2.5%
  • projectionYears5
  • fcfGrowth20.0%
  • fcfBase$50M
Earnings Power Value
$9.94
assumptions (8)
  • riskFreeRate4.7%
  • equityRiskPremium5.0%
  • beta100.0%
  • equityWeight85.0%
  • costOfDebtSpread1.5%
  • taxRate21.0%
  • normalizedEarnings$36.1M
  • growthAssumed0.0%
Graham Number
$26.23
assumptions (1)
  • grahamMultiplier2250.0%

Different models answer different questions — which to trust when →

v. The price question — last, on purpose
Is today’s price fair?
See live price ↗
Type a price. The ledger answers.
Or set your own belief
FCF growth, next 5 years20.0%
Discount rate (WACC)8.93%
Terminal growth2.5%
At your growth, a share is worth $54.19
The three cases
Bear0.0%$29.83
Base20.0%$54.19
Bull20.0%$54.19

Bear/base/bull growth = 0% / filed history / history + 5pp. Type a price to see the return each case implies.

Default growth 20.0%= this company’s own filed history (median-to-median FCF CAGR, clamped 0–20%). Your adjustments are recorded anonymously. They become the “what do owners actually believe” dataset.

Sources — the receipts
  1. 10-K · period ending 2022-12-31 · accession 0001558370-25-002457 (InterestAndDividendIncomeOperating)
  2. 10-K · period ending 2023-12-31 · accession 0001104659-26-022367 (InterestAndDividendIncomeOperating)
  3. 10-K · period ending 2022-12-31 · accession 0001558370-25-002457 (NetIncomeLoss)
  4. 10-K · period ending 2023-12-31 · accession 0001104659-26-022367 (NetIncomeLoss)
  5. 10-K · period ending 2022-12-31 · accession 0001558370-25-002457 (NetCashProvidedByUsedInOperatingActivities)
  6. 10-K · period ending 2023-12-31 · accession 0001104659-26-022367 (NetCashProvidedByUsedInOperatingActivities)
  7. 10-K · period ending 2022-12-31 · accession 0001558370-25-002457 (PaymentsToAcquirePropertyPlantAndEquipment)
  8. 10-K · period ending 2023-12-31 · accession 0001104659-26-022367 (PaymentsToAcquirePropertyPlantAndEquipment)
  9. 10-K · period ending 2022-12-31 · accession 0001104659-26-022367 (CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents)