Grayscale's Zcash Trust has seen its management fees soar to $440,000 last week, driven by a significant increase in ZEC prices. This marks a substantial rise from $32,000 six months ago, as reported by EmmettGallic monitoring. The trust, which charges an annual management fee of 2.5%, has experienced a 15-fold increase in fees corresponding to a similar rise in ZEC's price. Currently, the trust holds 393,000 ZEC.