NYSE-listed closed-end fund C1 Fund (NYSE: CFND) added Polymarket, a decentralized prediction market platform, to its portfolio in the second quarter. The move increased the number of cryptocurrency-related companies in the fund’s portfolio to 11, from seven at the end of last year. Its holdings include Alchemy, BitGo, Blockchain.com, Chainalysis, ConsenSys, Figment, Fireblocks, Kraken, Polymarket, Ripple Labs and Uphold.