Amazon.com Inc. $AMZN has been trading sideways since August, but I think there will be more downside in October.AMZN Daily Chart(click to enlarge)Bearish Break:- First let's note that for the most part, AMZN has been making higher highs and higher lows since late 2018 when price briefly broke below $1400 then rebounded sharply.- After share price poked above $2000 again, price started to retreat sharply in late July into early August. This dip broke below a rising trendline, but price was still above the 200-day simple moving average (SMA).- Then, price was trading roughly between $1750 and $1850.- We saw a bullish attempt in early September rejected at $1850, leading to a bearish swing that cracked the $1750 support this week.- I think there is a good chance AMZN will slide to $1700.- For me, I already have exposure around $1700 and wouldn't mind adding if price falls towards $1600 before adding more. Support in this $1600-$1700 would be indicative of a bullish trend. That means, if price subsequently challenges the $2050 again, I would expect a bullish continuation breakout.- However, I would also make sure to have dry powder for the $1350-$1400 area, which is a longer-term consolidation range support, seen on the weekly chart.AMZN Weekly Chart(click to enlarge)