Exchangeable Bond (EB) Complete Guide — Repaying with Someone Else's Shares

An Exchangeable Bond (EB) is a bond where the issuer repays principal with shares of a third-party company it holds. Unlike a Convertible Bond (CB) — which converts into the issuer's own new shares — an EB exchanges into shares of another company that the issuer already owns. The critical distinction: no dilution to the issuer's own equity.

The global EB market is roughly $30–50B annually — smaller than the CB market ($200–300B) — but individual transactions can be enormous. SoftBank's 2021 Alibaba-backed EB of $11.4B is among the largest ever. EBs are most commonly used by holding companies or large conglomerate subsidiaries seeking to monetize significant equity stakes without market disruption.

Three hybrid bonds — CB, BW, and EB — all share the 'bond + equity option' structure. But the critical difference lies in whose shares are delivered. CB and BW convert or exercise into the issuer's own new shares. EB exchanges into third-party shares the issuer already holds.

This distinction matters enormously. CB and BW are capital-raising tools that dilute existing shareholders. EB is a stake monetization tool that doesn't touch the issuer's own equity base at all. So CB/BW are chosen when the issuer needs growth capital; EB when the issuer wants to monetize an existing investment.

Three key EB parameters: ① Exchange Price — typically set at 15–30% premium to the underlying stock at issuance. Investors have the right to receive shares at this price. ② Coupon — reduced in proportion to the option value embedded in the exchange right. Zero-coupon EBs are common. ③ Maturity — usually 3–5 years; if unexercised, principal is repaid at maturity.

Tax treatment is also significant. From the issuer's perspective, EB issuance is treated as a bond — not an equity sale — so immediate capital gains tax may be deferred until the actual exchange occurs. Tax rules vary significantly by jurisdiction, so expert review is essential.

SoftBank invested $20M in Alibaba in 1999. By Alibaba's 2014 IPO, that stake was worth over $60B. A legendary investment — but the challenge was 'how to exit.' Selling Alibaba shares directly in the market would tank the stock, destroying the sale price. EB was the ideal solution to this dilemma.

SoftBank's strategy was elegant: if Alibaba's stock rises, investors exercise, SoftBank exits the stake; if the stock falls, investors don't exercise, SoftBank retains the shares. EB gave SoftBank an optionality-embedded exit strategy that automatically adjusts to price direction.

Korea's EB market evolved primarily as a tool for intra-chaebol shareholding restructuring. In the Hyundai Motor Group, Hyundai Mobis holds large stakes in Hyundai and Kia. Using these stakes as EB collateral allows Mobis to raise liquidity while gradually restructuring the group's ownership structure.

Another Korean EB use case is circular shareholding resolution. Chaebol subsidiaries face pressure from the FTC to unwind cross-shareholdings. EBs allow them to gradually distribute holdings without market impact while achieving regulatory compliance and liquidity simultaneously. There is also investor demand for EB as a way to gain exposure to premium Korean conglomerate subsidiaries.