Uptober Is a Statistic, Not a Signal: Bitcoin’s October 2026 Setup in Four Numbers

Conclusion first: October has finished higher in 10 of the last 13 years, with an average gain of 19.92 percent, and the most recent October contained two of the worst days this market has ever recorded. Both figures come from the same table. That is why this article is about four numbers rather than about a month.

Uptober is a portmanteau of up and October, and the statistic underneath it is not folklore. CoinGlass publishes the month-by-month returns back to 2013: October closed green in 10 of 13 years, a 76.9 percent hit rate, with an average of 19.92 percent and a median of 14.71 percent, the highest median of any month in the bitcoin calendar. Used as a description of the past, that is correct and dull. Used as a forecast, which is what a month name is usually doing in a headline, it comes apart, because the same table contains the last October.

Number one: 19.92 percent on average, and the last October closed about 4 percent lower

The window you choose changes the statistic, which is the first thing worth knowing about seasonality. The 2013 to 2025 sample gives an average of 19.92 percent and a median of 14.71 percent. A close-to-close sample from 2016 to 2025 gives roughly 17.8 percent and a median near 13 percent, with 8 of 10 Octobers green. Same month, same asset, two numbers, and neither is dishonest. A single outlier year does most of the work in the average, which is why the median matters more than the average here.

Now the outlier. Bitcoin entered October 2025 near $119,000 and printed its all-time high around $126,080 on 6 October, with US spot ETFs taking in roughly $4.7 billion in the first half of the month. The month closed near $105,000, down about 4 percent: the first red October since 2018 and the end of a multi-year green run. Four days after the high came 10 October 2025.

On that day a tariff announcement landed after US equity markets had closed, so crypto traded without the arbitrage that normally cushions it, and the liquidations ran into the weekend. The published totals are worth writing precisely. More than $19 billion of leveraged positions were liquidated across 10 and 11 October 2025, the largest single liquidation event in the market’s history and roughly nine times the previous record; CoinGlass later said the true nominal figure may have reached $30 billion to $40 billion. Between 85 and 90 percent of the liquidated positions were longs. More than 1.6 million trading accounts were wiped out. Perpetual futures open interest across the market contracted about 43 percent, from $217 billion to $123 billion, with a 57 percent drop on Hyperliquid alone, where $10.3 billion was liquidated. On Binance the synthetic dollar USDe depegged to about $0.65, which fired a second round of liquidations among holders who had been using it as collateral.

That is what a crowded book looks like when it unwinds, and it is the reason the leverage question matters more than the seasonal one. A month name cannot liquidate anyone. A funding rate can. So here are the four numbers that describe the position going into October 2026, ordered by how much I think they are worth trusting.

Number two: $2.3858 billion of ETF inflows in one week, and the outflow that ended the streak

The week ended 25 September 2026 was the strongest week for US spot bitcoin ETFs since October 2025. Farside Investors put the total at $2.3858 billion; the same week flipped 2026 year-to-date flows positive, from roughly minus $5.8 billion in mid-July to about plus $934 million. The fund-by-fund split matters, because it shows the demand was not one product.

Farside and SoSoValue do not always agree, and the two should not be stitched into one series. On the SoSoValue side, the run was nine consecutive sessions from 17 September worth about $3.1 billion, and it ended on 30 September with $148.7 million of net outflows, led down by FBTC at minus $125.6 million and IBIT at minus $9.5 million. Cumulative net inflows since the January 2024 launch sit near $57.6 billion, against roughly $108.4 billion of assets under management.

Read the sequence rather than the peak. A record inflow week, immediately followed by the first outflow in nine sessions, is not a trend breaking — it is a trend whose continuation is now an open question. The bull case going into October 2026 leans on this flow resuming, and the honest state of the evidence is that it stopped two days before the month began.

Number three: 41,025 BTC added to wallets holding between 10 and 10,000 BTC

Santiment reported that addresses holding between 10 and 10,000 BTC added 41,025 BTC over a 10-day window in late September 2026, lifting that group’s combined holdings to about 13.64 million BTC, or roughly 67.93 percent of circulating supply, the highest level since the mid-August rally. The same report noted that wallets below 0.01 BTC barely moved, and that a wider cohort holding 100 to 1,000 BTC added about 113,950 BTC between 15 July and 23 September, reaching about 5.24 million BTC.

Two caveats belong in the same paragraph, because the headline number cannot survive without them. First, a higher wallet balance is not a purchase: coins moving from an exchange into custody, or between wallets owned by the same desk, show up as accumulation in this metric while nothing is bought. Second, an address is not an investor. This band contains exchange cold wallets, custodians, market makers and corporate treasuries holding on behalf of thousands of clients, so 67.93 percent is a statement about balances, not about a small group of people who own two thirds of bitcoin. Santiment itself framed the divergence as encouraging rather than decisive, and said the signal would be stronger if small holders sold while large ones kept buying.

Number four: 0.28 basis points, the 0th percentile of the last 90 days

This is the number that contradicts the story most people are telling about October 2026, so it needs the timeline in order. On 21 September bitcoin broke $86,000, up 7.3 percent to about $86,749, on a short squeeze of roughly $648 million inside $746.6 million of total liquidations. Market-wide futures open interest rose 7.59 percent to about $156 billion in the same window, and funding turned positive on 24 of the 25 largest bitcoin perpetuals, with OKX at about 0.0096 percent per eight hours, close to 10.5 percent annualised. That was a crowded long book, and it was being paid to stay long.

One week later it was gone. By 28 to 30 September, bitcoin-denominated open interest had fallen to about 652,000 BTC, near the lowest reading of 2026 against roughly 800,000 BTC earlier in the year, and CME’s bitcoin open interest dropped 14.78 percent in a single day to $8.41 billion. Market-wide derivatives open interest stood at $383.26 billion, down 12.01 percent over seven days and 18.07 percent over fourteen, with bitcoin open interest at $53.84 billion, down 12.54 percent on the week. The seven-day average funding rate was 0.28 basis points, down 62.3 percent week over week, which is the 0th percentile of the past 90 days; on major venues the perpetual funding rate had turned negative, averaging around minus 0.3 percent, meaning shorts pay longs. Of the $125.7 million in bitcoin liquidations on 28 September, 74 percent were longs.

Bitcoin was quoted around $83,795 on 30 September, down about 3 percent over seven days and still roughly 40 percent above its level at the start of July. So the setup entering October 2026 is a spot bid — ETF creation and large-wallet balances — sitting on top of a derivatives market that has already de-levered, with the surviving leverage now paying the other side of the trade.

What the four numbers agree on, and the story they contradict

Three of the four describe increasing spot demand. One describes a market where the leverage has been removed and the remaining positioning is short. Volume and coverage have settled on a different summary: that bitcoin is range-bound with crowded longs waiting to be flushed, which is what the funding and open interest data looked like on 21 September, not what it looked like nine days later.

The bullish case in circulation rests on targets rather than positions. Citigroup raised its 12-month bitcoin forecast to $113,000 from $82,000, citing stronger activity, a favourable macro backdrop and recovering ETF inflows. The crypto fear and greed index printed 74 on 1 October, its greed band. Those are both statements about expectations, and expectations are exactly what the 0th percentile funding rate is telling you the market already paid for and then stopped paying for.

What would have to be true for October to go up

The four numbers leave a market with two conditions attached to it, and both are readable in public data rather than in forecasts. The first is flow. A record $2.3858 billion week of ETF inflows followed by $148.7 million of outflows is a bid that has not yet proved it can persist across a month, and the bull case leans on it resuming. The second is positioning. With seven-day average funding at 0.28 basis points and bitcoin open interest near its 2026 low, the leverage that amplified the October 2025 crash is largely absent from the book, so a move higher needs less new leverage to start — a healthier base, and also a base with no forced buyers behind it.

Two measurement notes belong with any reading of these figures. Fund flow trackers disagree at the margin: Farside and SoSoValue publish different totals for overlapping windows, so a single series should be read end to end rather than stitched from both. And large-wallet data describes balances, not buying. Balances rise when coins move from an exchange into custody, and the entities behind those addresses include exchanges, custodians and market makers acting for thousands of clients, so a headline share of supply is not a share of owners.

What remains is a month with a good average and a bad precedent, a spot bid that flickered on and off inside a fortnight, a whale metric that measures balances rather than intent, and a derivatives market that has already thrown its leverage overboard. None of that predicts October. It does set the two conditions that would confirm the bullish reading — ETF inflows resuming and holding, and a de-levered book that stays short while spot absorbs it.