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    Bridge Loan

    A bridge loan is temporary financing that lets a buyer close a deal now and refinance later with permanent debt or equity. It's pricey and designed to be repaid fast — the bank provides certainty of funds while the long-term capital structure is finalized.

    Definition

    A bridge loan is a short-term, interim financing facility used to fund a transaction immediately while the borrower arranges permanent ("take-out") capital such as a bond issuance, equity raise, or asset sale. In investment banking it most often appears as a "bridge to bonds" — a committed loan banks underwrite so an acquirer can close a deal on time, with the loan repaid once the high-yield debt market is tapped. Bridge loans carry higher pricing than the permanent financing they replace and include escalating-rate features that pressure the borrower to refinance quickly. They are a core component of acquisition financing and feature heavily in leveraged buyout commitment packages.

    Formula

    Total Bridge Cost ≈ (Commitment Fee × Committed Amount) + (Funded Amount × Average Drawn Rate × Days Outstanding ÷ 360)

    Commitment Fee

    Upfront fee (often 1.0–2.0%) paid on the committed amount for the bank guaranteeing funds, charged whether or not the bridge is drawn.

    Committed Amount

    The full size of the bridge facility the banks have committed to provide.

    Funded Amount

    The portion actually drawn down to fund the transaction.

    Average Drawn Rate

    The all-in interest rate while outstanding, which steps up over time toward the contractual cap.

    Days Outstanding ÷ 360

    The fraction of a year the bridge is drawn, using a 360-day money-market convention.

    Why bankers use bridge loans

    Deals run on certainty. When a company signs a purchase agreement, the seller wants assurance the buyer can actually pay — and high-yield bond and equity markets can take weeks to access and can close entirely during volatility. A bridge loan solves this: the acquirer's banks provide a committed bridge facility as part of the financing commitment, guaranteeing funds at signing so the buyer can win the deal and close on schedule. The bridge is never meant to stay outstanding. It's a placeholder for the permanent financing (typically high-yield bonds, hence "bridge to bonds," or sometimes a "bridge to sale" repaid by divesting an asset). Banks underwrite the bridge knowing they'll syndicate or refinance it quickly, earning fees on both the bridge commitment and the eventual bond issuance.

    How a bridge loan is structured

    Bridge facilities are deliberately punitive so the borrower refinances fast. Pricing starts above the expected permanent-debt rate and steps up at fixed intervals (e.g., +50bps every quarter) until it reaches a contractual interest cap. If the bridge isn't repaid within a stated period (often one year), it 'rolls' into longer-term 'rollover loans' and can be converted into exchangeable notes the lenders may sell. Key features: a commitment/funding fee, a ticking fee if drawdown is delayed, the rate step-ups, and a hard cap. The structure deliberately makes the bridge the most expensive money in the capital structure, incentivizing the borrower to issue permanent bonds the moment markets allow.

    Bridge loan vs. permanent financing

    A bridge loan and the permanent financing it replaces fund the same dollars — the difference is duration, cost, and intent. Permanent term loans and high-yield bonds carry multi-year maturities, lower coupons, and are the real long-term capital. A bridge is short-dated, more expensive, and exists only to span the timing gap. Contrast it with a revolving credit facility: a revolver is a reusable, ongoing source of working-capital liquidity, whereas a bridge is a one-time, term commitment tied to a specific transaction that disappears once refinanced. In real estate, a 'bridge loan' similarly funds a property purchase before a sale or long-term mortgage closes.

    Limitations and risks

    The chief risk is market risk: if high-yield or equity markets freeze before the bridge can be taken out, the underwriting banks are stuck holding the loan on their balance sheets — exactly what happened to banks on several 2007–2008 LBO commitments. The escalating rate caps the lenders' upside but also signals how costly a failed take-out is for the borrower. Bridges also concentrate refinancing risk at a single point in time and can pressure deal economics if rates have risen since the commitment was signed. For the borrower, an unrefinanced bridge that converts to high-coupon rollover notes can meaningfully damage credit metrics and equity returns.

    Worked Example — With Real Numbers

    An acquirer agrees to buy a target for $1.0bn and lines up a $500m bridge-to-bonds facility to close on time. The bank charges a 1.5% commitment fee ($7.5m) at signing. The bridge funds at SOFR + 5.00% (say 9.5% all-in). Three months after close, the company issues $500m of 8% high-yield bonds and repays the bridge. Bridge interest cost = $500m × 9.5% × (90/360) = $11.9m, plus the $7.5m fee = ~$19.4m total to bridge the deal. The bonds at 8% then become the permanent, cheaper financing — confirming the bridge did its job: certainty of close, repaid fast.

    Key Takeaways

    1

    A bridge loan is short-term interim financing that funds a deal now and is repaid by permanent capital (bonds, equity, or an asset sale) later.

    2

    Its main purpose in M&A is providing certainty of funds at signing so a buyer can win and close a deal before bond/equity markets are accessed.

    3

    Pricing escalates over time toward a contractual cap, deliberately making the bridge expensive so the borrower refinances quickly.

    4

    The biggest risk is a frozen take-out market, which can leave underwriting banks holding the loan — a real hazard seen in 2007–2008.

    5

    A bridge is a one-time, transaction-specific term facility, distinct from a reusable revolving credit facility for ongoing liquidity.

    Common Mistakes in Interviews

    Confusing a bridge loan with a revolving credit facility — a bridge is a one-time, term commitment for a specific deal, not reusable liquidity.

    Thinking the bridge is intended to stay outstanding; it's designed to be refinanced quickly and the rate steps up to enforce that.

    Ignoring market/refinancing risk — assuming the take-out always happens, when frozen markets can strand the bridge on banks' balance sheets.

    Forgetting the commitment fee is paid even if the bridge is never drawn, because the bank is being paid for the funding guarantee itself.

    How Interviewers Test This

    A classic question is: 'Why would an acquirer use a bridge loan instead of just issuing bonds directly?' The answer is certainty and timing — bond issuance takes weeks and markets can close, so the bridge guarantees funds at signing so the deal can close on schedule, and is then refinanced with permanent bonds (a 'bridge to bonds'). Bonus points for noting the escalating rate cap incentivizes fast refinancing and that the bank earns fees on both the bridge and the take-out.

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