The Capital Efficiency Signal: When ROIC Improves Because the Denominator Stopped Growing

Korea's financial regulator released its first-half 2026 direct financing data this week, and the headline everyone picked up was the obvious one: companies raised ₩126.6 trillion through public equity and corporate bond offerings, down 15.6% year on year — ₩23.4 trillion less than the same period last year. Equity issuance fell 29.6% to ₩3.0 trillion. IPOs fell from 42 deals to 28. Rights offerings dropped 29.5%, with large offerings above ₩100 billion falling from five to two.

That reads as a sentiment story. The more useful number is buried two paragraphs down.

Where the money actually went

Of the ₩25.9 trillion raised through ordinary corporate bonds, 72.9% — ₩18.9 trillion — was used to repay existing debt. Working capital took 23.6%. Facilities took 3.6%.

Meanwhile ordinary corporate bonds ran a net redemption of ₩9.6 trillion against ₩35.5 trillion of maturities, reversing net issuance of ₩6.5 trillion in the same period last year. And credit access narrowed: AA-and-above paper made up 76.9% of unsecured ordinary corporate bond issuance, A-rated 21%, and everything BBB and below just 2.2%.

Now the other half. CP and short-term note issuance totaled ₩1,272.8 trillion, up 68% — ₩515.1 trillion more than a year ago. Short-term notes alone rose 90.4% to ₩990.1 trillion, driven by a 121.1% jump in ordinary short-term notes. The regulator's own framing is worth keeping: short paper matures quickly and the same money can be rolled repeatedly, so gross issuance does not scale one-to-one with new funding demand.

Even discounting for that, the direction is unambiguous. Long money shrank. Short money expanded. And the long money that did arrive mostly walked back out to retire older long money.

Why this is a CEI question, not a liquidity one

The Capital Efficiency Index reads ROIC, asset turnover, and the investment gap. The temptation is to treat it as a numerator problem — is the company earning enough on what it has? The harder half is the denominator: is invested capital being formed at all?

A firm that funds itself at three-month maturities while its assets need years to pay back is not making an allocation decision each quarter. It is clearing a calendar. And in that state ROIC can improve for a reason that has nothing to do with efficiency: the denominator simply stops growing. Depreciation runs off the asset base, no new capital lands to replace it, and the ratio drifts upward while the productive capacity behind it shrinks.

This is why the distance between funding maturity and asset payback period belongs in a capital efficiency reading. Not the level of either one — the gap, and whether it widens or narrows quarter on quarter. No screener displays it, because it requires two disclosures that live in different documents.

The contrast case

On 21 July, Airbus told investors it targets €12–13 billion of adjusted EBIT in 2029 (assuming €/$ at 1.22), reiterated a cash conversion target of around 1 over a five-year horizon, and confirmed board approval of a €5 billion share buyback over three years, subject to continued shareholder approval. Its 2026 guidance was left unchanged.

Set aside whether those targets are achievable. Structurally, every euro in that announcement has three things attached: a destination, a date, and an expected return. In the Korean aggregate, 72.9% of bond proceeds have exactly one attachment — the previous debt.

Academic frame

Myers (1977) called this the debt overhang problem: when a large share of future cash flow is pre-committed to existing creditors, positive-NPV investment is rationally declined, because the gains accrue to debtholders rather than equity. Almeida, Campello, Laranjeira and Weisbenner (2011) showed the maturity channel empirically — firms with a larger share of long-term debt maturing right after the 2007 credit shock cut capital expenditure roughly twice as much as otherwise similar firms. The mechanism is not sentiment. It's the calendar.

What an individual investor can do with this

When a company's ROIC improves, ask which side moved. If revenue and operating profit are flat while ROIC rises, look at whether invested capital shrank — and then at the maturity profile of what funded it. A company retiring long debt with short paper while capex approaches zero will show you a healthier ratio every year, right up to the point where it has nothing left to be efficient with.

General structural observation based on public disclosure. Not investment advice.

#RaymondsRisk #RelationalRisk #CorporateGovernance #RefinancingRisk #CapexGap #KoreaCreditMarket