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Market meter

USDC dominance

How much of the market sits in USDC, and why it tells a different story from USDT.

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By the Orca Crypto teamUpdated 2026-09-14How we check this4 min readContext
The short answer

USDC's market capitalization as a share of the whole crypto market. USDC is used more heavily inside regulated venues and inside DeFi than USDT is, so its share tends to respond to different things: institutional flows, DeFi activity, and regulatory news in the United States and Europe.

USDC dominance2.74%
0%100%
Share of the market sitting in USDC.

Live. The figure above updates in your browser while this page is open, and the page was built with a real one in it rather than a blank.

What it measures

The plain description

USDC's market capitalization as a share of the whole crypto market.

USDC is used more heavily inside regulated venues and inside DeFi than USDT is, so its share tends to respond to different things: institutional flows, DeFi activity, and regulatory news in the United States and Europe.

How it is worked out

Stated so you could reproduce it

USDC market cap divided by total crypto market cap, times 100.

How to read it

The bands, and what each one actually means

ReadingWhat it indicates
Rising alongside USDTDollars arriving in crypto generally. The clearest version of the signal.
Rising while USDT fallsUsually a rotation between stablecoins rather than a change in how much money is present.
Falling sharplyWorth checking the reason. Redemptions, a depeg scare or a regulatory event all look identical in the ratio.
What it does not tell you

The part that gets left out

  • The same ratio problem as every dominance figure: it moves when the rest of the market moves, with no action in USDC at all.
  • A large share of USDC supply is collateral inside DeFi, not capital waiting to buy something.
  • USDC has depegged before, briefly, when a bank holding part of its reserves failed. A stablecoin holding a dollar is a design goal, not a guarantee.
Before you act on any of it
Every meter on this site is context for a decision, never the decision. None of them predicts anything, and the ones that look most like signals are the ones worth trusting least.

Common questions

What is the difference between USDC and USDT?
Different issuers, different reserve disclosure practices, different regulatory exposure, and different usage. USDC is the more common choice inside regulated venues and DeFi; USDT dominates offshore trading and several emerging markets.
Is USDC safer than USDT?
It publishes more detailed reserve reporting, which is a real difference. It has also depegged, in March 2023, when part of its reserves sat in a bank that failed. Neither is a bank deposit and neither is insured as one.
Why does the total stablecoin share matter more than either one?
Because rotation between stablecoins is common and means very little. The sum is closer to "how many dollars are sitting inside crypto", which is the question people are actually asking.

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