The sterling-denominated funds have recorded relatively modest gains across a narrow spread of returns.
When assets are sold, the fund records a capital gain or capital loss.
The fund recorded $390,042.78 in donations yesterday, more than twice the amount received on any previous day during the 80th annual appeal.
That fund has also recorded large advances.
The fund has recorded an average annual return of 30.8 percent during the last five years.
And if donations continued at that early pace, by the campaign's final day the fund would have recorded the largest year-to-year decline ever.
Yesterday, for example, the fund recorded only $2,140.
The band used a Kickstarter campaign to raise funds to record and release the album.
Each was given the funds to record one side of their next (and presumed final, at the time) album, Apart.
With last-minute contributions expected to arrive through the next week, the fund so far has recorded $4,829,746.58, about $14,000 ahead of last year's total.