A record week of inflows for crypto-derived exchange-traded products (ETPs) has pushed their combined assets under management (AUM) to levels not seen since the last bull market peak in 2021, according to CoinShares.

Crypto investment products’ AUM now stands at $67 billion, “marking the highest level since December 2021,” CoinShares research head James Butterfill wrote in a Feb. 19 report , pinning the AUM rise on year-to-date inflows of $5.2 billion and positive crypto market price action.

It comes as crypto ETPs notched a record $2.45 billion inflows on the week ending Feb. 16, with 99% due to United States-listed crypto ETPs , including the 10 approved spot Bitcoin ETFs, which saw a “significant acceleration of net inflows,” said Butterfill.

BlackRock and Fidelity’s ETFs picked nearly $2.3 billion of last week’s inflows, seeing $1.6 billion and over $648 million, respectively.

“Simultaneously, outflows from incumbent players have decreased dramatically,” Butterfill said. Grayscale’s products saw $623 million in weekly outflows — the issuer’s Bitcoin ( BTC ) fund has seen over $7 billion leave the fund since Jan. 1, when it converted to an ETF.

ARK 21Shares and ProShares ETPs saw combined weekly inflows of $515 million. Source: CoinShares

Meanwhile, Bitcoin gained over 4% between Monday, Feb. 12 and Friday, Feb. 16, per Cointelegraph Markets Pro . It ended the week at over $52,000 — a high not seen since December 2021.

Still, some investors are betting for the price to fall and added $5.8 million of inflows to short-Bitcoin products.

Ether ( ETH ) products also saw comparatively minor inflows of $21 million and finished last week at around $2,800, a high it last touched in May 2022.

Altcoin ETPs based on Avalanche ( AVAX ), Chainlink ( LINK ) and Polygon ( MATIC ) stood out for “having consistently seen weekly inflows this year,” Butterfill noted — each seeing around $1 million inflows apiece.

Solana ( SOL ) products saw $1.6 million in outflows, which Butterfull pinned on “impacted sentiment” from the network’s recent downtime in early February.