Oppenheimer Expands Stake in High-Yield ETF Oppenheimer & Co. Inc. increased its holdings in the Invesco BulletShares 2027 High Yield Corporate Bond ETF (BSJR) by 24.1% in Q4, acquiring 2,335 additional shares. The ETF, which focuses on high-yield corporate bonds maturing in 2027, has a 52-week price range of $21.82 to $22.77, reflecting relative stability.2