Books
What was sold at Sotheby's very first auction?
Several hundred scarce and valuable books from the library of Sir John Stanley went under the hammer.
Source: Sotheby's, The History of Sotheby's sothebys.com
Business · Guess the stat
How well do you know auctions?
Guess the real numbers behind auction houses, record-breaking bids and the biggest auctions on Earth, see how everyone else guessed, and get the source.
Guess the statOne tap · see how everyone guessed
What kind of dinosaur became the most expensive ever sold at auction, in July 2026?
Level1Rookie
XPPlay a round to earn XP
Streak0days
LeagueBronzeweekly
Daily #14Resets at midnight UTC
Today's round
- 4 stats to guess
- 1 opinion poll
- 0 played today
Guess, see the crowd, get the real number. One ranked attempt per day.
Auction by the numbers
Real figures with their sources. All Auction facts →
$79.6 billion
What was the gross merchandise volume (GMV) sold through eBay in 2025?
GMV rose 7% from 2024, and eBay's full-year revenue was $11.1 billion.
Source: eBay Inc., full year 2025 results (2025) ebayinc.com
444 (336 bills, 82 notes, 26 bonds)
How many U.S. Treasury securities auctions were held in 2025?
Most were auctions of short-term Treasury bills, which are sold every week.
Source: U.S. Treasury Fiscal Data API, Treasury Securities Auctions Data (auctions_query) (2025) api.fiscaldata.treasury.gov
What people think about auctions
Vote to see the live results. All polls →
What would you most love to win at auction?
Do you get caught up in bidding wars?
Live auction room or online bidding?
Leaderboard
- Loading…
Badges
Earned on any site in the network, shown on your profile everywhere.
First RoundFinish your first daily round.
BullseyeNail every stat in a round.
LightningA bullseye round in under 40 seconds.
Beat the CrowdGet a stat right that fewer than 30% of players got.
On a RollPlay 3 days in a row.
Week WarriorPlay 7 days in a row.
UnbreakablePlay 30 days in a row.
ExplorerPlay daily rounds on 5 different sites.
GlobetrotterPlay daily rounds on 25 different sites.
PolymathPlay daily rounds in 5 different categories.
PollsterHave your say in 10 opinion polls.
RecruiterInvite a friend who finishes a round.
CaptainInvite 5 friends who finish a round.
PodiumFinish a day in a site's top 3.
AnalystReach level 10.
Profile SavedSave your progress with an email.
Save your progress
Add your email to keep your level, streak and badges if you switch devices, and carry them to every site in the network. One email when you save; no spam.
Sponsor the Auction poll
Put your brand on the daily auctions round and its live results. Sponsors see how many people played and voted, and get the anonymous crowd results for their poll.
- Your name on the daily round and results
- A custom opinion poll for your audience
- Anonymous, aggregated results after it closes
Questions
How does AuctionSurvey.com work?
Each question asks you to guess a real number about auctions. After you answer you see how everyone else guessed, then the real figure and where it comes from.
How is the daily round scored?
Four stats and one opinion poll. A correct guess earns 100 points plus up to 50 for speed, with a combo bonus for answers in a row. The range next to the right answer earns 40. Opinion polls earn 25 for having your say, and nailing every stat adds 150.
Where do the numbers come from?
Every stat links to its source, such as government statistics agencies, research organizations and industry groups. Figures are checked against the source before they go live.
Is it free?
Yes. Playing, streaks, badges and leaderboards are free, and your votes stay anonymous.