The 12 bitcoin ETFs posted their biggest Monday gains since June, bringing in $555.86 million, with Fidelity’s FBTC leading the charge. FBTC alone hauled in $239.25 million, followed by Bitwise’s BITB, which grabbed $100.2 million. Blackrock’s IBIT secured the third spot with $79.51 million. Not far behind were ARKB, GBTC, HODL, EZBC, BTCO, Grayscale’s Bitcoin Mini Trust, and BRRR.

On the flip side, BTCW and DEFI were the only two funds that stayed flat with no movement. The $555.86 million in gains pushed the 12 funds’ total net inflows since Jan. 11 to a hefty $19.36 billion. Adding to the fervor, Monday’s trading volume hit $2.61 billion, according to sosovalue.xyz stats. With the latest influx of cash, the funds now hold $61.89 billion in BTC reserves—equivalent to 4.75% of bitcoin’s total market cap.

Ether ETFs also had a positive day, though their gains were more modest. The nine ether funds brought in $17.07 million, with Blackrock’s ETHA taking the lead by capturing $14.31 million. Fidelity’s FETH followed with $1.31 million, while Invesco’s QETH secured $1.05 million. 21shares’ CETH rounded it off with a respectable $393,690 in gains. The $17.07 million helped bring the total net outflows since July 23 down to $541.82 million.

Monday’s session saw $210.40 million in trading volume, and the spot ether ETFs now control $7.2 billion in ETH reserves. This sum makes up 2.28% of ethereum’s total market cap as of Oct. 15. Monday’s strong inflows highlight renewed interest in both bitcoin and ether ETFs, with bitcoin funds outperforming significantly. The addition of more than half a billion dollars to bitcoin ETFs reinforces their growing influence on the market. While ether funds saw smaller gains, both asset classes continue to attract attention.