It looks like there was a reason for such an unexpected pump, but I just didn't pay attention to it at the time. It turns out that there was an
announcement back on July 2 that FUNToken has been added to the ChangeNOW service.
Most of the crypto price surge when it is listed on a new and popular exchanger. FUN tokens price had received the highest pump when it was added on Freebitco and Binance.
Overall, it's good that there is another service for exchanging FUN tokens, but it's worth noting that there is quite a big spread at the moment. For example, if you want to buy FUN tokens for BTC, the exchange rate will be ~19 sats, while the rate for selling FUN tokens will only be ~15 sats.
The FUN/BTC difference is big if you want to exchange a low amount on ChangeNOW. But the difference will decrease if you try to exchange higher amount like 100k to 200k FUN tokens. FUN tokens buy/sell rate has 2 satoshi difference on Freebitco. The best thing would be to buy the FUN tokens through the trading platform instead of using the exchanger.