Buying a Depegged Stablecoin: How to Calculate Profit If It Repegs

When a stablecoin slips below its dollar peg, some traders see a discount. Buy at ninety-five cents, wait for it to return to a dollar, and pocket the difference. In practice, the profit is smaller than the headline discount, and the downside can be much larger.

A depeg signals stress: thin liquidity, heavy redemptions, or doubts about reserves. A repeg is possible, but never guaranteed. This guide runs the trade math. All prices below are illustrative examples, not current market prices.

What a Depeg Actually Means

A stablecoin is designed to hold a fixed value, usually one US dollar. Small wobbles of a fraction of a cent are normal market noise. A genuine depeg is larger and persistent — a coin trading at $0.95 or $0.90 for hours or days.

That gap changes both sides of the trade. On the way in, you receive more coins per dollar. On the way out, the price must recover enough to cover fees and still leave a profit. Many traders treat the discount itself as the profit. It is not — profit only exists if you sell higher, after fees.

Why Coins Depeg

The most common trigger is a wave of redemptions: if many holders rush to exit at once, the mechanisms defending the peg fall behind. Liquidity shocks and doubts about backing have a similar effect. A liquidity-driven dip has a different outlook from a reserve-driven depeg, so identify the cause first.

The Repeg Trade Math

The calculation has four steps, and skipping any flatters the result. First, work out how many coins your money buys at the depegged price. Second, subtract the buy fee. Third, multiply net coins by your expected sale price. Fourth, subtract the sell fee. The difference from your original stake is your profit or loss.

Fees bite twice, and on a small discount that matters. A coin bought at $0.95 that repegs to $1.00 offers about 5.26% before fees, but only about 5.05% after a 0.1% fee on each side. Higher fees, slippage, and network costs can shrink a thin edge further, or erase it.

Also calculate your break-even sale price in advance: the price at which you recover your stake after fees. If the coin recovers only partway and stops below break-even, you lose money even though the price rose from your entry.

Key takeaway: Your profit is not the discount — it is the sale price minus both rounds of fees, measured against your original stake.

Worked Example: A $5,000 Depeg Trade

Suppose you put $5,000 into a stablecoin at $0.95, paying 0.1% on the buy and 0.1% on the sell. At $0.95, $5,000 buys 5,263.16 coins; after the buy fee, you hold 5,257.89 coins. That net figure is the only one that counts — the fee coins are gone. Break-even sale price: $0.9519.

Notice the asymmetry. The full repeg pays about 5%, the partial repeg under 3%, but the failed repeg costs nearly 11%: upside capped by the peg, downside with no such ceiling. Position size is therefore the most important decision — only risk an amount you can afford to lose.

Risks That the Simple Math Misses

The table assumes you can trade at the stated prices. In a stressed market, thin order books move the price against a large order, so your average price ends up worse than quoted. Direct redemption may also be slow, restricted, or suspended during stress — check the terms before you buy.

Peg behaviour can also differ between chains and versions of the same asset, and moving between them adds fees. Our guide to calculating profit on wrapped tokens, including peg drift and fees covers that wrinkle, and our walkthrough of profit after bridge fees on cross-chain swaps shows how transfer costs change a cross-chain trade.

Before committing funds, check how long the depeg has lasted, how deep it is, and whether volume is rising or drying up. CoinGecko's Tether page tracks market data for the largest stablecoin, and Circle's USDC pages explain its reserves and redemptions. Decide your exit prices before you buy.

Key takeaway: The upside of a repeg trade is capped at the peg, but the downside is not — size the position for the failed-repeg case, not the successful one.

Try the numbers yourself with the Crypto Profit Calculator: enter your stake, buy price, expected sale price, and fees to see profit or loss across repeg scenarios. Run the failed-repeg case first — it forces you to confront the downside while you can still walk away.

Conclusion

Buying a depegged stablecoin is a bet on recovery, judged on expected value, not the apparent discount. Work out net coins after the buy fee, find break-even, and model partial and failed repegs alongside the full repeg. If upside after fees does not compensate for downside, skip the trade.

This article is for educational purposes only and is not financial advice. Stablecoin prices can be volatile, depegs can deepen or become permanent, and you could lose part or all of your investment. Always do your own research and check the issuer's terms and reserves before deciding.