Roundhill’s new Photonics ETF, LYTE, drew unusually strong early trading, with $76 million in debut volume and $103 million on day two. The fund rose 5% in its

Roundhill’s new Photonics ETF, LYTE, drew unusually strong early trading, with $76 million in debut volume and $103 million on day two. The fund rose 5% in its first two sessions, raising the question of whether volume will translate into lasting inflows.