Stablecoins

Stablecoins are tokens designed to maintain a stable value, usually pegged 1:1 to the US dollar. They serve as on-chain cash equivalents — used for trading, payments, and remittances.

Major models

• Fiat-backed centralized: USDC (Circle), USDT (Tether). Backed by cash, treasuries, and other reserves held by the issuer.
• Crypto-collateralized decentralized: DAI. Over-collateralized by ETH and other on-chain assets.
• Algorithmic: Maintained by smart contract logic, no reserves. UST's 2022 collapse is the cautionary tale; this model is largely abandoned.

Risks

• Reserve quality: Are reserves verified? Audited? Are they short-term liquid assets?
• Smart contract bugs: Especially relevant for decentralized stablecoins.
• Regulatory action: Issuers operating without clear regulation can be shut down.
• De-pegging: Even fiat-backed stables briefly dropped below $1 during the 2023 Silicon Valley Bank crisis.

What stablecoins are for

Stablecoins are tokens designed to maintain a stable value, usually pegged 1:1 to the US dollar. They serve as on-chain cash equivalents — used for trading, payments, remittances, and as the "settlement layer" of DeFi. Total stablecoin supply hit $160B+ in 2024.

The three models

The Terra/UST collapse — why algorithmic stables are dead

May 2022: TerraUSD (UST), an algorithmic stablecoin pegged via mint/burn mechanics with the Luna token, depegged from $1 and entered a "death spiral." Within a week, UST was worth $0.05 and Luna had lost 99.99%+ of its value. $40 billion in market cap vanished. The collapse demonstrated that algorithmic stables can fail catastrophically and quickly. Few investors should hold any algorithmic stable today.

USDC vs. USDT — the practical difference

Both are dollar-pegged centralized stables. The differences:

• USDC (Circle). US-regulated, monthly attestations, mostly cash + short Treasuries. Lost its peg briefly in March 2023 during the SVB crisis (recovered within days).
• USDT (Tether). Offshore, less transparent historically, broader range of reserve assets including commercial paper and (historically) controversial holdings. Has maintained peg through every major stress event but with less verifiable backing.

Yield risks with stablecoins

"Earn 8% on USDC" sounds compelling. Almost always means lending the USDC to a counterparty (Celsius, BlockFi, FTX-style) who may fail. The Celsius/BlockFi/Voyager collapses in 2022 trapped billions in stablecoin "yield products."

Common stablecoin mistakes

• Treating any stablecoin as risk-free. Every stablecoin has counterparty or smart-contract risk.
• Holding stablecoins on exchanges for yield. Counterparty risk concentrated.
• Forgetting tax implications. Swapping stable A for stable B is a taxable event in most jurisdictions.
• Trusting algorithmic stables. Despite multiple high-profile failures, new versions keep appearing. Few survive a real test.
• Using stablecoins for emergency funds. The depegging risk + smart contract risk make them inferior to a high-yield savings account.

Frequently asked questions

Are stablecoins regulated?

Increasingly. US states have begun licensing issuers; EU MiCA regulation governs from 2024. Federal US framework is still evolving.

USDC, USDT, or DAI?

USDC is the most-regulated and verifiable. USDT has the most liquidity globally. DAI is decentralized but uses USDC as significant backing — reducing the "decentralized" claim.

Can stablecoins fail?

Yes. UST proved algorithmic stables can. Fiat-backed stables have depegged briefly during crises. Holding stablecoins is not equivalent to holding bank dollars.

Putting this into practice this week

Concepts only matter if they change behavior. Pick the single most relevant action from the above and put it on your calendar — even 15 minutes of action beats hours of further reading without doing anything. The compound benefit of small consistent moves dwarfs the optimization gain from any single decision. Most people fail at finance not because they don't know what to do, but because they don't act on what they already know.

How this connects to the rest of your financial plan

Personal finance is a system, not a list of independent decisions. The choices you make in one area cascade into others: a tax-loss harvest affects your asset allocation, a 401(k) contribution affects your near-term cash flow, a Roth conversion in 2024 affects RMDs in 2050. Sophisticated financial planning is mostly about understanding these second- and third-order effects. The basics that everyone should master first: emergency fund in cash, capture the full 401(k) match, eliminate high-interest debt, max tax-advantaged accounts before taxable, write down a single-page financial plan and review it annually.

Key takeaways

• Understand the mechanics before you optimize the edges. A solid 70% strategy beats a fragile 95% optimization.
• Automate behavior so you don't depend on willpower. Set-it-and-forget-it is the highest-leverage financial habit.
• Match the strategy to your actual situation, not the situation you wish you had or that influencers describe.
• Review annually; ignore daily noise. The market's short-term moves rarely require a response.
• Consistency over decades beats brilliance over months. Time in the market does the work; trying to time it usually destroys it.

The bottom line

The biggest financial wins come from doing the simple things consistently for decades — not from finding the cleverest single trick. Build the foundation first; the optimizations layer on top once the foundation is solid. The investors who end up wealthy aren't the ones who picked the best stocks. They're the ones who saved consistently, kept costs low, took appropriate risk for their horizon, and didn't sell during crashes. Everything else is detail.

Continue your learning at Krovea

Krovea exists to connect every concept on this page to the next one you should read. Use the site-wide search for any term you're unsure about. Run the relevant numbers on a Krovea calculator with your actual situation — projections beat speculation every time. Look up unfamiliar jargon in the A–Z dictionary. Most readers find their first session on Krovea answers one question and surfaces three more — that's how compounding knowledge works. Subscribe to the weekly briefing if you want the highest-impact one topic delivered without the noise of constant financial media.

A final note on financial decision-making

Every concept covered here exists because someone made a costly mistake first and the rule emerged from the consequences. The 401(k) match exists because Americans weren't saving enough. The Roth IRA exists because mid-century retirees got taxed twice on their nest eggs. The wash-sale rule exists because traders abused loss harvesting. Treat each piece of advice not as arbitrary rules to memorize but as the encoded lessons of prior generations of investors. The framework that survives recessions, regulatory changes, and market manias has been stress-tested in ways no individual could replicate. Following the boring conventional wisdom isn't unimaginative — it's the result of selecting for what actually works at scale across millions of investors and dozens of market cycles.

One last thing — when in doubt, do less

The average investor underperforms their own funds by 1–2% per year because of trading mistakes — entering after rallies, exiting after crashes, switching strategies after they stop working. Inaction has a cost, but action has a much bigger one. When you're not sure what to do, the right answer is usually nothing. Pick the next paycheck's contribution, automate it, and look away until tax season.