#BTC Risks Lurk Behind BTC’s Rise! Derivatives + ETF Data Send Cautious Signals

Bitcoin has maintained an overall upward trend since August, but a derivatives data point is sounding the alarm: the 7-day moving average of BTC open interest has crossed below its 365-day moving average. This is the second decline in open interest (OI) since August 25. Bitcoin’s price strength in early September drew a large influx of traders into the derivatives market, pushing OI higher and driving speculative enthusiasm to a peak. But that optimism didn’t last, with the moving averages also crossing in late September.
Historically, this signal closely resembles the OI decline seen during a temporary pullback in the 2025 bull market in October. ETF outflows have persisted, and institutions remain cautious. The market had originally expected a rally in October, but institutional funds continued to exit. Spot Bitcoin ETFs recorded $434 million in net outflows, marking the second consecutive week of outflows.
The details are mixed: outflows reached $678.9 million in the week of October 9, while they narrowed to $228.4 million in the latest week, easing selling pressure somewhat. But new inflows also shrank, as market buying demand weakened.
Looking at a longer timeframe, funds still recorded net inflows equivalent to 15400 BTC over the past 30 days. Spot demand is weak, leaving the support base unstable. Bitcoin reserves on exchanges edged up in October, seemingly restoring some support, but they remain low compared with the start of the year, leaving the support base on shaky ground.
The spot market looks even less encouraging: spot demand briefly approached breakeven in early October, then quickly turned negative again, as spot buying weakened.
Overall market demand is currently being kept afloat largely by futures contracts. For Bitcoin to stage a sustained rebound, several conditions must be met simultaneously: ETF funds must return to significant net inflows, spot demand must recover, and long-term holders must continue accumulating. None of these can be missing.

Market Summary
Although BTC has been in an overall uptrend since August, the breakdown in the open-interest moving averages signals cooling speculative enthusiasm. Combined with another weakening in spot demand, this adds considerable uncertainty to the current rebound. The battle between bulls and bears is intensifying, so be sure to manage your position size#WCTCS9 $BTC