The main crude oil restricted by the crude oil fund is the limited foreign exchange quota. Crude oil funds belong to QDII. Such funds are restricted because SAFE no longer increases the foreign exchange quota of QDII, and fund companies have no additional liquidity reserves.

This is also a risk point for investors to invest in QDII. When QDII falls to the bottom, investors' positions may be limited. Therefore, investors should pay attention to this risk point when investing in QDII.