Rothschild Investment Corp more than tripled its exposure to bitcoin in the second quarter.

The Chicago-based institutional investment manager increased its holdings of Grayscale Bitcoin Trust shares to 141,405 from 38,346 in the prior quarter, according to Securities and Exchange Commission documents filed Monday.Its holdings in the the Grayscale Ethereum Trust rose about 5% to 279,119 from 265,302.According to the filings, the firm's holdings in the BTC and ETH trusts are worth $4.2 million and $6.2 million, respectively. These figures compare with valuations of $1.92 million and $4.75 million in the first quarter.Grayscale is owned by CoinDesk parent company Digital Currency Group.