At present, the cheapest open-end fund is Harvest Overseas China 0.6230, and the cheapest non-QDII fund is Tianzhi Core 0.6989, which still rose two days later and even lower on Wednesday.
However, buying a fund does not need to look at the net value at all. No matter how low the net value is, it's useless. If the stock market continues to fall, the net value will continue to fall.
Buying funds and buying cheap ones is the biggest misunderstanding of buying funds.