USDC (USDC) exchange inflows surged to $778 million — the highest level since September 2025, when a similar spike preceded Bitcoin (BTC) rallying to its all-time high above $126,000 — raising questions about whether sidelined capital is preparing to re-enter the market.

USDC Deposit Surge

CryptoQuant community analyst Maartunn flagged the move in a post on X, noting that centralized exchanges received 778,566,191.65 USDC in a single day. The exchange inflow metric tracks the total volume of an asset transferred to wallets linked to centralized trading platforms.

For stablecoins, the signal differs from typical crypto inflows.

When Bitcoin flows into exchanges, traders are usually preparing to sell. But stablecoin deposits often point in the opposite direction — investors moving capital onto exchanges tend to be gearing up to buy volatile assets.

The last time USDC inflows reached this scale was in September 2025.

That wave of deposits preceded Bitcoin's run to a new all-time high above $126,000 in early October.

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Stablecoin Liquidity Outlook

Stablecoin supply serves as a proxy for sidelined capital across the broader crypto market. The Stablecoin Supply Ratio, or SSR, compares Bitcoin's market cap against available stablecoin liquidity to gauge how much room the asset has to grow.

Whether this capital converts into actual market orders remains uncertain. But the pattern echoes the setup from last fall, when a comparable inflow spike marked the start of a major rally.

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