why didn't stock and mutual fund prices update yesterday?.?

The stockmarket is not open on Boxing day.

The US markets were opened and mutual funds I owed had update prices

They did.

Fund Prices

If they are in same category, ETF share prices tend to about 6 or 7 times more expensive than their seeming counterparts in mutual funds. I understand ETF’s benefits over mutual funds such as low turn over rate creating less capital gains tax, lower expense ratio, no min investment, no short term redemption fee, intra day trading and etc…. However, index mutual fund can come close to that also at much lower prices…… Anyone know why ETF share prices tend to be noticeably higher than mutual fund share prices?
With ETF, it’s much easier to take advantage of dollar cost averaging due to there being no min initial investment nor min additional investment, but the share prices are expensive.
With ETF, there are companies that will waive commissions if you trade their ETFs which is my intent.

The costs of ETFs include not only management fees but also trading costs. The latter include commissions, and markups and markdowns on the investments bought or sold. When you buy, you purchase at the dealer’s ask price, which tends to be on the high side of the market. Conversely, when you sell, you sell at the dealer’s bid price, which tends be on the low side of the market. Commissions add to your expense.

Another problem is that there can be price changes in the stocks underlying an ETF between the time you buy the ETF and the price of a comparable mutual fund, which is calculated at daily closing prices. The result is that sometimes ETF prices may be higher than underlying stock prices (and also mutual fund prices). This isn’t always a problem, but it can be, depending on how the market moves and when during the day you buy the ETF. Also, ETF price changes sometimes lag behind price changes in the underlying stocks, so that your purchase may be executed at an “inaccurate” price, in a manner of speaking.

With all fund closing prices being different the price change per day is meaningless. I wish they illustrated it in terms of daily percentage gains. Why do they not do this?

i don’t know