The stablecoin economy continues to rise, with its total valuation exceeding $316 billion as of March 21st, after increasing by $124.9 million over the past week. Of that $316 billion, Tether’s $USDT It boasts an overwhelming share of 58.25%.
Stablecoin supply steadily increases
The fiat-pegged token sector rose slightly last week, increasing by 0.04%. Zooming out, the picture becomes clearer over the last month, with total valuation increasing by 2.49%, or about $7.67 billion, based on data from defillama.com.
The stablecoin market continues to be dominated by Tether ( $USDT), maintains a massive market cap of $184,119 million this weekend. Tether has seen minimal gains over the past week, gaining 0.06% with approximately $115 million in inflows.

Defillama.com stablecoin statistics as of March 21, 2026.
Circle USDC moved in the opposite direction, falling 0.19% as around $150 million was outflowed, giving it a market capitalization of $79.091 billion on Saturday. Sky Dollar (USDS) remained in third place, gaining 2.41% over the same period, with a valuation of $8.245 billion.
Ethena’s high-yielding stablecoin USDe rose slightly this week after falling last week, rising 0.04% on inflows of approximately $2.11 million, reaching $5.923 billion at the time of writing. Sky’s DAI holds the fifth place among stablecoins with a market valuation of $4.569 billion. It has increased by 0.66% over the past 7 days, maintaining its position within the top 5.
Together, these five tokens amount to $282 billion, accounting for 89.24% of this weekend’s $316 billion stablecoin economy. World Liberty Financial, which has a market capitalization of $4.428 billion, has fallen by 3.69% per US dollar over the past 7 days. PayPal’s PYUSD also fell, dropping 0.97% to $4.066 billion.
Rounding out the top 10, BlackRock’s BUIDL, Circle’s USYC, and Global Dollar’s USDG each rose between 0.69% and 7.41%. After a series of declines, the fiat-pegged token sector has edged up a little each week for the past three years. at the same time, $USDT’s dominance has weakened, falling below the 60% range it had held for a long time.
meanwhile $USDT still holds the largest market share by a wide margin, but its dominance has receded slightly and smaller competitors have been making steady gains, suggesting a more decentralized structure is starting to take shape. Still, only time will tell whether the changes persist or fade.
Frequently asked questions 🔎
- What is the market capitalization of stablecoins on March 21, 2026? The stablecoin market is worth approximately $316 billion as of March 21, 2026.
- Which stablecoins currently dominate the market? tether’s $USDT It ranks first with about 58% of the total market share.
- How much of the market do the top five stablecoins control? The top five stablecoins account for approximately $282 billion, or 89% of the sector.
- Are stablecoins growing or declining recently? The sector has been showing steady, moderate growth after several short declines three weeks ago.

