JPMorgan Chase Reduces Stake in BondBloxx Telecom, Media & Tech ETF JPMorgan Chase & Co. trimmed its holdings in the BondBloxx USD High Yield Bond Telecom, Media & Technology Sector ETF by 5.4% during the fourth quarter, now owning 21,715 shares worth $749,000. The ETF trades at $34.42, with a market cap of $78.48 million and a 52-week range of $32.69 to $35.51.12