Bitcoin needs to gain 7.4% in the next week to reach $87,500. It needs to lose 4.9% to touch $77,500. Traders on the Myriad prediction market think the second move is nearly twice as likely as the first.

That is the Bitcoin October price question as the month enters its last week. BTC changed hands around $81,460 on Friday, flat on the day and down 0.4% over seven days, according to Decrypt's market report. Over 30 days the coin is off 4.8%.

The ETF reversal

October briefly looked like it might turn out decent. US spot Bitcoin ETFs took in roughly $1.07 billion across three straight sessions, and month-to-date flows climbed to around $460 million on Wednesday.

Thursday undid most of it. The funds shed $635.6 million, per Decrypt's tracker, which erased close to 60% of the streak and left October at about $176 million in net outflows. As Cointelegraph reported using SoSoValue data, it was the biggest single-day exit since June 25, when the funds lost $696 million.

Price barely flinched. Bitcoin traded between about $80,996 and $82,551 that day, after Wednesday's intraday peak of $84,777. A $636 million withdrawal against $100.2 billion in total fund assets is a rounding error in percentage terms. I'd still not wave it off, because flows are the number everyone watches now, and the weekly tally, still $443 million positive, sits oddly against a month that is negative.

Ether had it worse. Its ETFs lost $110.6 million Thursday and are down about $1.18 billion for October.

What the bettors are pricing

Myriad, the prediction market run by Decrypt's parent company Dastan, puts the odds of Bitcoin reaching $87,500 before month-end at 17%, a drop from 20% the day before. A run to $90,000 gets 9%. A slide to $77,500 gets 32%. Separately, the market puts 71% on Bitcoin staying inside $80,000 to $82,000 over the coming days.

I read that as a mood, not a forecast. Small prediction markets are thin, and they tend to chase the last candle. Still, the picture holds together: a coin pinned in a tight band, leaning slightly down.

The macro calendar has one clear date. The Federal Reserve meets Oct. 27-28, and traders expect a hold. A hold is the quiet outcome, which suits a market analysts describe as in wait-and-see mode. Oil above $111 a barrel and a slump in AI stocks hit equities on Thursday, so a hawkish surprise would land on an already nervous tape.

There's also a level worth marking. Cointelegraph noted Bitcoin has been circling roughly $81,500, the estimated average cost basis of the ETF holders. When price hugs the buyers' break-even line for days, I expect every wobble to get read as a verdict. It usually isn't one.

A slow-burn risk in the background

One item that won't move the price this week but belongs in the file: Bitcoin Core merged a revised security policy on Thursday, Decrypt reported. Developer Antoine Poinsot argued that AI tools have lowered the bar for finding certain bugs. For flaws flagged as "easily discoverable," the project will now backport fixes to all maintained releases and ship quickly instead of holding a long embargo.

No one has tied that to Thursday's selling, and there's no evidence of a link. It does show developers themselves rewriting the old assumption of slow, quiet patching.

What to watch

Three things decide where the month closes. First, whether ETF flows return to inflows after the Fed meeting or keep the red ink going. Second, whether Bitcoin holds the $80,000 floor, since the $77,500 bet only pays if it breaks. Third, whether oil and AI-stock weakness keep spilling into risk assets.

The base case on current pricing is a month that ends within a few percent of today's level. The tails are fatter than they look, though, and the next ETF print could arrive before the Fed even speaks.