Frontier Yield

I’d like to start off this piece with a brief history of structured products.

Part I: The Genesis

In 1774, Amsterdam broker Adriaan van Ketwich, launched Eendragt Maakt Magt ("unity creates strength"), a pooled security explicitly designed for citizens of modest means. This vehicle invested in a diversified mix of foreign government and bank bonds, as well as West Indies plantation loans. This was the first tradable instance of what today is known as a closed-end fund.

It took almost 100 years for this financial innovation to cross the English Channel to London, where in 1868, the Foreign & Colonial Government Trust was finally established. Providing small investors exposure to foreign government bonds, this gave the Brits their first true investment trust.

It reached the US with the Boston Personal Property Trust in 1893 (the first US closed-end fund), then took its modern shape when Edward G. Leffler launched the Massachusetts Investors Trust on March 21, 1924 — the first US open-end mutual fund, its primary innovation being daily redeemability at NAV and continuous share issuance.

While these products democratized diversification (i.e. a small investor could own a professionally pooled portfolio they could never assemble alone), they were still limited in benefits and contained risk that wasn’t properly priced. For example, expensive active management, extreme premiums/discounts to NAV, once-daily pricing, end-of-day-only liquidity, and hidden leverage all combined to ultimately detonate them in 1929, prompting the Investment Company Act of 1940. These residual flaws are precisely what the index fund and later the ETF would attack.

The early 1970s was a crucial period for continued structured product growth. In 1970, two bright guys by the names of Bruce R. Bent and Henry B. R. Brown launched The Reserve Fund, which was the world's first money market fund. At the time, Regulation Q capped bank savings rates and government T-bills required a $10,000 minimum, putting these instruments out of reach for most small investors. Bent and Brown pooled small investors' cash into commercial paper and repos at a $1 NAV with fast liquidity. This broke the bank’s deposit monopoly. (if you are having deja vu while reading this, you should, as this is exactly the same battle being fought by stablecoin proponents in Clarity Act debates today.) The Reserve Fund and subsequent other money market funds saw explosive growth. The industry grew to roughly $3.5 trillion by 2008, and today the total AUM of money market funds in the US is closer to $8 trillion. Of course, the $1 NAV remained merely a promise, not a law, and the continued rise of dollar denominated money market funds soon gave witness to an early version of what crypto-natives would eventually call “a depeg”. On September 16, 2008, the day after Lehman's bankruptcy, the Reserve Fund marked its ~$785 million of Lehman paper to zero. Its NAV fell below $1, and the resulting run pulled $498 billion (24%) out of money market funds in roughly a month, helping to seize the financial system.

In the late 1970s, it was the Salomon Brothers turn to take up the mantle of lead financial engineer. Lewis Ranieri and his team at SB and help from BofA, put together the first private-label mortgage-backed security in 1977, thus spawning the financial instrument now known as “Securitization”, a term Ranieri himself actually coined.

Securitization turned illiquid long-dated loans into tradable bonds, freeing bank balance sheets and matching long assets to capital-markets investors. This unlocked a multi-trillion-dollar market that extended to credit cards, autos, and student loans. Unfortunately, the popularity of securitization also bred poor best-practices, and the originate-to-distribute model (high origination fees incentivized rapid creation of new securities without proper risk analysis) eroded underwriting discipline. Everyone who watched The Big Short should be familiar with this story.

Alongside securitization, another structured product that gained popularity in the 1970s was the Index Fund. On 1 July 1971, Wells Fargo launched a ~$6 million equal-weighted portfolio of all NYSE stocks for the Samsonite pension fund. Thus the index fund for institutions was born. The first retail version came five years later: in 1976 Vanguard's John Bogle introduced the First Index Investment Trust (now the Vanguard 500 Index Fund), the first retail index mutual fund. While initially mocked as "Bogle's Folly.", it operationalized the efficient-market thesis — if managers can't reliably beat the market, own the whole market cheaply.

This reshaped finance; the Wells Fargo unit became Barclays Global Investors, which launched iShares in 2000 and was bought by BlackRock in 2009. While a great product, problems with the index fund remained: the institutional version was costly to maintain (equal-weighting forced constant rebalancing), and the retail versions were still priced only once a day at NAV — the liquidity gap the ETF would eventually finally close.

Part II: The ETF

The catalyst for the ETF was a government report nobody was supposed to act on. Buried in the SEC's post-Black-Monday autopsy was an unassuming description of a tradable basket of stocks. Back at the American Stock Exchange (AMEX), Nate Most and Steven Bloom found meaning in this description missed by everyone else. They read it as a blueprint.

Their attempt died in court: Index Participation Shares launched in 1989, but a Chicago federal judge ruled they were effectively futures and had to trade on a futures exchange, killing them. Ironically, the first surviving version was actually Canadian born; The Toronto 35 Index Participation Units, which launched March 9, 1990. Eventually following was the first US-listed ETF, the SPDR S&P 500 (SPY), which State Street and AMEX rang to life in January 1993.

The ETF rewired how index funds operated. The in-kind creation/redemption mechanism let authorized participants swap baskets of stock for ETF shares and back, which kept the price glued to NAV intraday and made the structure remarkably tax-efficient. SPY went on to become the most-traded security on the planet.

Despite their successes, ETFs fall short in serving private credit markets well. The arbitrage that keeps ETFs at fair value depends on liquid, continuously priced underlyings. An authorized participant has to be able to buy and sell the basket all day. That works for public equities and fails for anything illiquid or private. Public markets got a near-perfect wrapper. Private credit, which is illiquid by nature, and priced by appraisal rather than by tape, was left standing outside the party. Which is exactly where this story has been heading.

Despite attempts to create a private credit wrapper for ordinary investors, such as the Business Development Company and the Interval Fund, created in 1980 and 1993, respectively, neither solved the liquidity problem cleanly.

Which takes us to today. Over two hundred and fifty years of financial wrappers have been solved, one at a time, for cheapness, diversification, redeemability, tradability, and access. But no single vehicle has ever delivered continuous, par-stable, fungible liquidity and access to illiquid private-credit yield at the same time.

The stablecoin stack is the first vehicle that goes for all of it at once.

Part III: The Stablecoin

The stablecoin concept traces back to “colored coins”. This early notion, catalogued in @VitalikButerin's @ethereum whitepaper, was that you could "color" units of a cryptocurrency to represent some real-world asset: a share, a deed, a dollar. Dollars were the obvious first target, and the first real attempts arrived in 2014. BitUSD launched that July on BitShares (built by Dan Larimer and @IOHK_Charles, both later famous for EOS and @Cardano), and tried to hold a dollar using crypto as collateral. NuBits followed in September with an algorithmic peg. Both proved the concept and then proved its fragility: BitUSD never found real liquidity and eventually lost its peg, and NuBits broke permanently when demand dried up, foreshadowing the way Terra would detonate eight years later.

As per Occam's Razor, the version that stuck was the simplest. In 2014, a Santa Monica startup called Realcoin (founded by Brock Pierce, Reeve Collins, and Craig Sellars), skipped the collateral math and did the obvious thing: hold one real dollar in a bank for every token minted. It rebranded to @tether that November. An instant hit, USDT spawned many follow up attempts: @MakerDAO launched DAI on Ethereum in 2017, and in 2018 @circle launched USDC.

The stablecoin bet paid off big time. Nearly a decade later, the total stablecoin market now sits north of $315 billion. Tether's USDT alone is roughly $190 billion; Circle's USDC is around $75 billion. Between them, the two issuers hold so many Treasury bills in reserve that Tether now ranks among the twenty largest holders of US government debt on earth. Stablecoins have gone mainstream, settling on the order of $80 trillion in transfer volume, which on paper edged out Visa and Mastercard combined.

While a majority of that volume is crypto trading related vs actual payments flow, it is still a fair read that stablecoins are eating the rails beneath the card networks (ie the correspondent banking like ACH and SWIFT), rebuilding the plumbing that moves money between institutions.

Part IV: Beyond The Dollar Wrapper

For a decade, stablecoin growth rode on a token that does exactly one thing: hold a dollar and pay the holder nothing. That is beginning to change. Stablecoins are evolving from a passive dollar wrapper into something far more interesting: a yield engine.

This is what I'm calling, The Stablecoin Stack.

The stack has two parts: a rail and a wrapper. The rail is an ordinary dollar stablecoin that holds its peg and pays the holder nothing. The wrapper is a second token, minted by staking the first, and it carries the yield.

The reason for the split is regulatory. The GENIUS Act bars a payment-stablecoin issuer from paying yield on the stablecoin itself, so issuers keep the dollar clean and route the yield into the staked token. The result is that an issuer can pay yield, stay compliant, and still hand an institution an instrument it's allowed to hold. That pair — the dollar rail plus its yield-bearing twin — is the stablecoin stack.

The stack also softens the duration mismatch that broke money market funds and earlier private-credit wrappers. Liquidity lives at the token layer: a holder who wants out can sell the staked token into a liquid secondary market, rather than forcing the wrapper to dump an illiquid loan. The collateral stays illiquid; the claim is what trades, which is how the token preserves money-ness. In a crisis the residual mismatch resurfaces as a NAV discount or a redemption gate, but stablecoin stack structure.

The analogy here is how the high-yield bond ETF already works. HYG and JNK hold junk bonds far less liquid than their own shares, yet the shares trade all day at tight spreads, because the overwhelming majority of activity happens at the share level and only net flow ever reaches the bonds underneath. Staked tokens in the stablecoin stack also behave this way, trading actively and serving as collateral across deep liquidity venues like @Morpho, @pendle_fi, @CurveFinance, and @aave, not by redeeming against the underlying.Putting yield on-chain isn't new. Tokenized vaults from @yearnfi and @veda_labs, and RWA vaults like BlackRock's BUIDL on @Securitize, have all worked at a meaningful scale.

But a vault position is a narrow instrument: you hold it, and holding it is mostly all you can do. The stack's edge is distribution, and it comes from five properties the vault share lacks.

> First, it's fungible and composable, so the yield stacks. A dollar-denominated token is accepted as collateral across lending markets and DEXs, which means you can earn the credit yield and then borrow or LP against the same position. It carries the velocity and liquidity depth that a niche vault share never will, because it lives where the dollars already are.

> Second, regulated institutions can mint and redeem it natively under GENIUS. That is the unlock that actually matters for moving large pools of real-world capital on-chain, and no vault wrapper has it.

> Third, it spends. Stablecoin native card volume is exploding, finding PMF among crypto users who save on chain, but spend IRL. Cumulative crypto card payment volumes have reached a record $7.8 billion, with monthly volumes now up +230% since May 2025. Annualized volume is approaching $20B, rivaling even peer-to-peer stablecoin transfers. Crypto card networks like Colossus @colossuspay settle stablecoin payments on-chain through an ordinary EMV terminal — the same physical card as Visa or Mastercard — in roughly 100 milliseconds. Because the rail is already a dollar, your balance can sit in the yield-earning leg until the moment you tap. The conversion to the spendable leg at the register is the same decoupling described above, now at the point of sale: a liquidity provider or buffer fronts par and prices the duration, so you keep most of the yield minus a thin conversion toll. Idle dollars earning 8–15% until the instant you spend them, for a small toll at the register, is something a vault share simply can't do.

> Fourth, tokenizing a whole private-credit book as a single dollar-denominated stablecoin is radically cheaper than tokenizing the loans inside it one at a time. You pool the credit off-chain in a real legal structure and issue one fungible claim against the entire pool — sourced and redeemed on an aggregated, discretionary basis — instead of minting, pricing, and trading ten thousand individual loan tokens, or standing up a bespoke warehouse facility for every deal. That cost collapse is what makes a private-credit book investable at the scale and speed the on-chain market moves at.

> Fifth, the stablecoin stack offers 24/7 access and a new pool of lenders. A deeper, cheaper, more global funding base is the real reason a borrower picks this rail, and the reason the category can scale faster than the wrappers before it.

Market Sizing

Through the above advantages, adoption of yieldcoins, powered by the stablecoin stack, is reaching escape velocity.

In the first quarter of 2026, yield-bearing tokens were more than half of all net new stablecoin supply (about $4.3 billion of an $8 billion increase). In fact, 21Shares projects the category more than triples past $50 billion this year. Today, yieldcoins represent about 10% of the total stablecoin market, but the net new marginal dollar coming onchain is, on average, choosing yieldcoin format, setting up private credit backed stables for rapid TAM expansion.

Then it compounds. Crypto-native treasuries want dollar yield without leaving the rails or standing up a treasury desk, and composability lets the yield stack. There's also the Eurodollar market, which is an estimated $13-$20T of dollar denominated demand. This vast offshore market of people outside the US who want dollar yield and can't easily get into an American money fund, can tap into this new “digital eurodollar” product, so to speak. The same demand that built the eurodollar market in the 1950s is rebuilding it on-chain, except this version pays you.

Frontier Yield: Riding the Third Wave

Where stablecoin yield comes from has evolved in three waves.

The first wave was crypto-native and crypto-correlated: tokenized delta-neutral trading, with @ethena's sUSDe as the archetype, harvesting the funding spread between spot and perpetual futures. Real yield, but it's a crypto beta, fat when the market's hot, thin when it isn't. Ethena's own founder has publicly spoken about serious capacity constraints if the protocol absorbs 30% to 40% of all ETH perpetual-futures open interest. The strategy's beta showed plainly when USDe's supply peaked near $14.7 billion in October 2025, then contracted roughly 60% to under $6 billion by April 2026 as funding compressed. Ethena’s capacity was previously tested back in August 2024, when funding inversion cut the staked yield from 19% to 4% in eleven days. The natural response has been to diversify the strategy mix — Ethena itself moved into T-Bill backing to cushion the funding leg, and newer entrants like @tori_finance are skipping the single-strategy approach entirely with a multi-strategy synthetic dollar — trUSD as the rail, strUSD as its yield-bearing twin — that blends spot-perp arbitrage with money market positions and calendar spreads, explicitly designed to extend past the capacity ceiling Ethena ran into.

The second wave was the tokenized money-market fund: @BlackRock's BUIDL, @OndoFinance's USDY and OUSG, @FTI_US's BENJI, Circle's USYC, and the size leader, @SkyEcosystem's sUSDS. T-bill yield, on-chain, clustered around 3.1% to 3.6%. The problem is twofold. It's a commodity — the same policy rate whoever sells it — so issuer margins compress toward zero as competitors pile in. And the rate itself is falling: the Fed cut three times in the fourth quarter of 2025 and ended quantitative tightening in December, dragging the whole cohort's yield down together. Safe and scalable, but structurally unexciting. BlackRock collects 5bps on BUIDL while the protocols layered above - Ethena, Morpho, curator vaults extract 50-500bps on the same dollar all point out that the margin already left the issuer layer.

The third wave is the thesis: off-chain private credit. Real-world, largely non-correlated yield that pays 10%, 16%, 20% and up, sourced from the actual economy rather than crypto's own reflexivity, where the capacity pool it draws from is significantly larger. Private credit funds manage around $2 trillion today, projected to reach $4 to 4.5 trillion by 2030; the total financeable market across these asset classes — the loans that could move to private credit — runs north of $30 trillion, according to the latest McKinsey research.

For scale, the AI data-center buildout alone is a multi-trillion-dollar financing need this decade — McKinsey puts AI-capable data-center capex at $5.2 trillion by 2030 — and Morgan Stanley estimates private credit could fund more than half of it. Where wave 1 saturated around ten or fifteen billion dollars, wave 3's runway is two orders of magnitude larger. That gap, between a commodity policy rate and a deep, high-yielding, capacity-rich credit market, is the whole opportunity.

This third wave of off-chain, non correlated, RWA backed strategies, is what I like to call Frontier Yield. This is where the genuinely differentiated yield lives and where I’m interested in investing.

While the underlying yield is not necessarily exotic (it’s just high yield private credit), the renewed access to this asset class, powered by the stablecoin stack, is what earns the “frontier” moniker here. The novelty is the rail, not the yield. What makes this stretch of it a frontier is access; the rail solves financing gaps and reaches borrowers legacy private credit won’t or can’t underwrite.

As the world continues to shift back toward “atoms” over “bits” more opportunities for tokenized private credit emerge, from China’s Belt and Road initiative, data center buildout, grid electrification, and more – and the stablecoin stack stands ready as the best tool to bring this frontier onchain.

Case Studies at the Frontier

TechDollar @techdollarhq is a yield-bearing stablecoin backed by lending against late-stage private tech equity. Lenders deposit dollars into a pool; borrowers (holders of shares in the most sought-after private companies on earth, names like Stripe, OpenAI, Anthropic, Revolut, Bytedance, and Figure AI), pledge that equity as collateral and borrow against it at 14–19%+, underwritten at roughly 40% loan-to-value using live private-market pricing from Caplight (think Costar for private equity). The interest flows back to the stablecoin holders.

What it unlocks is a genuinely enormous, genuinely trapped market: companies stay private far longer than they used to, leaving employees and early investors sitting on billions in illiquid paper with no clean way to borrow against it.

TechDollar leverages the stablecoin stack to offer a 24-hour quote open to any qualifying holder, and routes the yield to on-chain dollars.

The top 10 global private tech companies alone account for over $3T in value, so the TAM backdrop against which TechDollar can grow their loan book is enormous.

Techdollar.com

Tomorrow @tmrwfinance provides financing to the creator economy. They focus on streaming receivables from platforms like Youtube, Roblox, Tiktok, Instagram, etc.

Creator revenue streams tokenized as digital receivables, with LPs holding a perfected security interest, originators posting first-loss capital, and 3-to-12-month loan terms. The tailwind is real and accelerating: YouTube turned on stablecoin payouts (PYUSD) for U.S. creators in late 2025, and U.S. creators earn more than $30 billion a year on YouTube alone, with the broader cross-platform receivable opportunity larger still.

Combined, the total receivable markets for these platforms approaches $60B annually, presenting a sizable market for Tomorrow to start originated against.

https://tmrw.finance/

USDAI @USDai_Official is AI Infrastructure credit lending against physical GPU clusters.

The financing need is staggering and structurally underserved: McKinsey puts AI data-center capex at $5.2 trillion by 2030, and the underserved borrower is specifically the non-hyperscaler — neoclouds and mid-market operators that rely on debt because, unlike the hyperscalers, they can't self-fund from cash flow, especially when their GPU collateral is viewed as a rapidly depreciating asset.

usd.ai

RE @re is tokenizing reinsurance yield. channels on-chain capital into real reinsurance treaties through two tokens: reUSD, the senior, low-volatility tranche, and reUSDe, the junior, higher-yield tranche.

It has reached roughly $500 million in TVL against a $409 million underwriting portfolio spanning 48 programs and 49 U.S. states, wrote $191.6 million in premium in 2025 (up 128% year over year) at a 92% combined ratio, and uses real regulatory plumbing — a licensed reinsurer, surplus notes, Section 114 trust accounts.

re.xyz

Where the Wrapper Could Tear?

Every structured product walked through in Part I detonated the same way. The Reserve Fund broke a buck because Lehman paper had been carried at par, CDO-squared collapsed because mortgage credit distribute-to-earn incentives destroyed proper underwriting. While the stablecoin stack solves access to frontier yield, the same tail risk remains whenever illiquid assets get utilized as a checking account.

Private credit is especially exposed to tail risk due to NAV smoothing practices. Private credit funds mark NAV by occasional appraisal, which suppresses volatility in normal years and only discloses the realized loss curve during tail events. Essentially, the credit strategy can look conservative until all of a sudden it doesn’t.

None of this invalidates the thesis, and the category isn't uniformly fragile. Backing the operators and teams with dedicated underwriting edge always remains the key. @maplefinance scaled from under $100M to over $4B in TVL through late 2025 while maintaining a 99% repayment rate, proof that disciplined underwriting can hold through DeFi-cycle conditions. The structural-product playbook says the wrapper always wins the next century. But every wrapper in the lineage — closed-end funds in 1929, money markets in 2008, securitization through the GFC — went through one detonation event before finding its mature form. The stablecoin stack hasn't had its detonation yet. The operators worth backing now are the ones who look disciplined, transparent, underwriting for the cycle event rather than against it.

Outlook

How big can this get? The addressable pools are very large; the open question is the capture rate. Global money-market funds hold $6–7 trillion. Private credit is a $30 trillion TAM and still compounding. Offshore dollar demand is, effectively, the world's appetite for dollars it can hold outside the US banking system. Yield-bearing stablecoins sit at roughly $20 billion against that backdrop, with total tokenized real-world assets only around $25 billion as of early 2026, which tells you how early this still is. A category that takes even a low-single-digit slice of those pools is an order of magnitude larger than it is now, and the version of this where yield-bearing issuance rivals the money-fund industry no longer reads as fantasy.

Strip away the novelty and this is the oldest pattern in finance. A good asset that's hard to own meets a wrapper that finally makes it easy, and capital follows. It happened with the investment trust, the money fund, the index fund, and the ETF. The asset this time is private credit and the wrapper is the stablecoin stack. For the first time, one vehicle reaches for continuous liquidity, fungible money-ness, and access to illiquid credit at once.

The bet is a narrow one, and a deliberate one: not stablecoins broadly, not private credit broadly, but the operators putting real underwriting onto this rail. Stablecoins are the product. The frontier, off-chain credit, carried on the stack — is where I'm investing.

Disclaimer: The views expressed herein are solely those of the author and are provided for informational purposes only. They do not constitute investment, legal, tax, or other professional advice, and should not be relied upon as the basis for any investment decision. References to specific companies, protocols, tokens, or sectors are illustrative only and do not constitute a recommendation or solicitation to buy or sell any security, token, or other asset. The author is an investor at No Limit Holdings, a venture capital firm that invests in blockchain and digital asset-related businesses, and No Limit Holdings and/or its affiliates may hold positions in, or have other economic interests in, certain companies, protocols, tokens, or sectors discussed herein.