If you are pricing a Antminer S9, start here: the Antminer S9 used price is $45 as of October 30, 2026. It rests on 10 real sales, not asking prices.
Over the last 90 days the price is down 10% on the 90 days before, so buyers are paying less. Also, we rebuild this page every day from the ING sold-comps data.
Antminer S9 used price, window by window
| Window | Sales (n) | Median | Middle half | Low to high |
|---|---|---|---|---|
| Last 90 days | 10 | $45 | $36 to $48 | $20 to $90 |
| Previous 90 days | 14 | $50 | $32 to $65 | $25 to $125 |
Every window covers machines sold as pre-owned. First, we remove price outliers. Then we take medians, because one odd sale can wreck an average. Per TH/s that works out to about $3.33. Shipping is not in these prices. When the buyer paid it, the median charge was $22, and 45% of sales shipped free.
Why the Antminer S9 price moved
The 90-day median is down 10% on the window before it. That looks like a real move, not noise. Still, it rests on a modest number of sales, so treat the size as approximate. However, we cannot see why each buyer paid what they paid. Instead, we see the price that cleared. In general, falling used prices go with a weaker mining margin or with newer machines taking the demand.
Antminer S9 against the Canaan Avalon Nano 3
The nearest model on the price ladder is the Canaan Avalon Nano 3. It has a 90-day median of $110 on 11 sales. So the Antminer S9 sells for 59% less. In short, that gap is wide, so the two are not close substitutes.
Is the Antminer S9 price fair against hashprice?
Hashprice is $32.93 per petahash per day today. At the rated 13.5 TH/s and 1,323 W, the Antminer S9 grosses $0.44 a day before power. As a result, its break-even power price is 1.4 cents per kWh.
| Power price | Profit per day | Payback on $45 |
|---|---|---|
| 5 cents | -$1.14 | never |
| 8 cents | -$2.10 | never |
| 12 cents | -$3.37 | never |
Our fair value is a year of profit at 5 cents with hashprice held flat. For the Antminer S9 that comes to $0. At 5 cents this machine does not earn a profit at all. Break-even is only 1.4 cents. So the sold price is not a mining price. Buyers are paying for cheaper power than we model, a bet on bitcoin, or another use for the machine. Sold data cannot tell us which. However, hashprice moves every block, so this verdict can flip. Also, it ignores pool fees, hosting and difficulty growth.
Buying or selling an Antminer S9
Use these numbers as a check on any quote. First, if you want to sell, start on our we buy used miners page. It takes a description and gives you an offer. Next, try the free What is my miner worth? tool. To buy instead, see the Antminer S range or browse all used ASIC miners. Also, every model we track appears on the used ASIC miner prices by model page, and the full table is in the ING Used ASIC Miner Price Index.
How we count these sales
Every figure comes from completed eBay sales that our collector recorded up to October 30, 2026. We keep US-dollar sales of single working machines only. We drop parts, lots, repair listings and sales with no model in the title. Then we remove price outliers. Also, we publish a cell only when 5 or more sales stand behind it. The price is the item price, with shipping left out. For the full rules, read the index methodology. Bitcoin network data for the mining maths comes from mempool.space.
In short, our take is to trust the sold price, not the asking price. For the Antminer S9 that means $45, give or take the $36 to $48 band.
-Nick
ING Mining
This is general information, not financial advice. Crypto is volatile, and you can lose money. Please do your own research.