If you look at the bitcoin market in October in the past years, it can be understood that it was always positive, but no one can say whether this October will be positive or negative.
Since crypto is volatile, no one can accurately predict when the price of a coin will increase or when the price of a coin will decrease. Like last few years this year also in the month of October we see an upward trend in Bitcoin price. Compared to other years, Bitcoin has gained 5.83% this year as well, according to CoinGlass' Bitcoin Monthly Return Chart. 
Currently, small red candles are being observed in the Bitcoin market for a few days, that is, the price of Bitcoin is going down by a small amount.