[moduspol]

But they can't necessarily make those transactions easily with a ton of money in the fund, right?

I mean if the current price of BTC is $10,500, buying $10m worth of BTC will drive up the price as they're doing it. So how can you rebalance accurately if you're affecting the price of these cryptocurrencies while you do it?

Or do they just do like a "best guess" and overbuy a little and then sell off to get the balance right? I guess any index fund would have this issue, though.