Loan-to-Value Calibration in Stock Loans.

A borrower’s most common first question is some version of: “What LTV can I get on this position?” The firm’s most common first answer is some version of: “Tell me about the position.” The exchange is not evasive. LTV is, for institutional stock loans, a calculated output rather than a published input.

The calculation is driven by six variables, each of which affects the lender’s effective recovery in a stress scenario. Two of the variables are about the underlying itself; two are about the position within the underlying; two are about the structure of the transaction. The combination produces a calibrated LTV that may differ materially from the LTV on a position that looked superficially similar.

1. Free float

The free float — the proportion of the issuer’s shares that are not held by insiders, controlling shareholders, or other long-term restricted holders — determines the practical depth of the market in which the lender would have to liquidate. An issuer with 70% free float has a deeper market than the same notional issuer with 30% free float, even if the daily trading volumes look comparable in absolute terms.

For pledges of substantial holdings — particularly where the pledged position itself is a meaningful percentage of the free float — the float consideration sharpens further. Liquidating a pledge that represents 5% of an issuer’s free float is a materially different exercise from liquidating a pledge that represents 0.5%. The LTV is adjusted accordingly.

2. Average daily trading volume

Average daily volume (ADV) is the most direct measure of the time required to liquidate a pledged position without disproportionate market impact. A pledge representing thirty days of ADV can be liquidated cleanly in five to ten trading days; a pledge representing six months of ADV cannot. The lender’s effective recovery in a stress scenario depends on the days-of-ADV consideration; LTV is calibrated against it.

The conventional institutional benchmark is that a pledge representing more than ten percent of ADV per day in a stress liquidation produces material market impact. For positions where the pledge size implies a long liquidation period, the LTV is haircut to provide the lender with adequate cushion across that period.

3. Implied and realised volatility

A high-volatility underlying requires a larger LTV haircut than a low-volatility one. The reasoning is direct: the lender’s collateral cushion needs to be large enough to absorb a price move during the margin-call response window without breaching the loan-to-value condition. An underlying with 50% annualised volatility can move 8–10% in a single trading day on a routine basis; an underlying with 15% volatility cannot.

The volatility consideration is one of the principal drivers of the LTV difference between large-cap utilities and growth-stage technology issuers, between developed-market indices and emerging-market indices, and between mature businesses and recently-listed issuers. Two positions of the same notional size in different sectors can support materially different LTVs because of volatility alone.

4. Sector and issuer-specific factors

Beyond volatility, certain sectors carry structural characteristics that affect LTV: extractive industries with commodity-price exposure, biotechnology issuers with binary regulatory outcomes, financial institutions with capital-cycle sensitivity, recently-listed issuers with limited trading history, issuers under regulatory investigation. Each of these is a layer on the calibration, sometimes additive, sometimes overriding.

Issuer-specific factors are also material: pending litigation, regulatory inquiries, going-concern qualifications in audit reports, takeover speculation, and any other factor that materially affects the predictability of the underlying’s near-term path. The structuring stage maps these explicitly.

5. Shareholder concentration

Concentration on the share register affects LTV through several channels. A highly-concentrated register implies that the free float is small relative to nominal market capitalisation, narrowing the depth of the practical market. It also implies that any single substantial-holder disclosure event — a sale, a pledge, an inheritance — has outsized market impact, which sharpens the lender’s risk on a liquidation scenario.

The borrower’s own status on the register also matters. A pledge by a controlling shareholder of a family-listed company carries different LTV calibration than a pledge of the same notional amount by a passive institutional investor in the same issuer. The structural reason is that the controlling shareholder’s pledge is a more market-significant event, and the lender’s effective liquidation path is materially different.

6. The structural variables

The first five variables are about the position and the underlying. The sixth is about the transaction itself: the recourse profile, the tenor, the custody arrangement, and any cross-currency element. Each of these moves the LTV.

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  Recourse. Non-recourse structures run at lower LTV than full-recourse on the same underlying, because the lender absorbs the tail risk. See recourse profiles.
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  Tenor. Longer tenors run at lower LTV than shorter tenors on the same underlying, because the lender’s stress window is longer.
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  Custody. Bankruptcy-remote custody arrangements support higher LTV than non-bankruptcy-remote structures, because the lender’s recovery path in a stress scenario is more predictable.
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  Cross-currency. Cross-currency structures run with an FX haircut against same-currency structures. See cross-currency stock loans.

Why there is no published rate sheet

The combination of six variables on the position side and three or four variables on the structure side produces a calibration space that cannot be reduced to a rate sheet. The firm does not publish one for two reasons: first, any published number would be either so wide that it conveys no information, or so specific that it misleads borrowers whose positions occupy a different point in the calibration space; second, the calibration is the value the firm adds, and reducing it to a rate sheet would convey the wrong impression of what the structuring stage actually does.

For an individual position, the calibration is conducted at the indicative-terms stage — typically within one to two business days of an initial submission — and produces a specific LTV against specified structural terms. The number is meaningful because it is calibrated to the specific position; a generic published number would not be.