Step 1: Interest Rate & Credit Spread
Step 2: BAA Spread → Equity Risk Premium
Base Premium
3.0%
+
(
BAA Spread
1.51%
−
Baseline
1.5%
)
=
Equity Risk Premium
3.01%
Step 3: Risk-Free Rate + Beta × Equity Risk Premium → WACC
Risk-Free Rate
4.30%
+
Beta
1.14
×
Equity Risk Premium
3.01%
=
Cost of Equity
7.73%
Step 4: Blended Cost of Capital (WACC)
Cost of Equity
7.73%
× Equity Weight
+
Cost of Debt
4.59%
× Debt Weight
=
WACC
7.46%
WACC of 7.46% combines a cost of equity of 7.73% (4.30% + 1.14×3.01%) and an after‑tax cost of debt around 5.8%, reflecting Cummins’ BAA credit rating and a relatively high discount rate that compresses the present value of future cash flows for a mature industrial firm.
The model assumes free‑cash‑flow growth at the 10‑year historical CAGR of 6.6% for the explicit forecast period, which is consistent with past performance but may be optimistic as the power‑train market reaches saturation and competitive pressures rise.
A terminal growth rate of 2.0%—aligned with long‑run GDP growth—is applied, implying modest post‑forecast expansion and substantially limiting terminal value relative to more aggressive assumptions.
The divergence between the historical DCF ($427.36) and analyst DCF ($294.48) is driven mainly by differing terminal growth rates (3% vs 2%) and the analyst’s slightly lower WACC; both valuations sit well below the current market price, highlighting the sensitivity of intrinsic value to these inputs.