The closed-end fund Anshun (500009, closing price 1.193 yuan), which distributed 9.3 yuan dividends out of 10 units, plummeted by 6.50% yesterday, with its intra-day maximum drop exceeding 9%. The fund Yulong (184692, closing price 1.07 yuan), which underwent ex-rights on Wednesday, fell for two consecutive days with a drop exceeding 15%. The fund Hongfei (184700, closing price 1.144 yuan) was even sealed at the bottom of the fall limit during trading. What exactly happened to these closed-end funds?