The Prediction Markets

Which songs will be #1 on the Billboard Hot 100 in October?

Closes
Oct 31, 2026, in 8 days
Traded
$13K
Venues
Kalshi
Prices updated
1 min ago
Share

What the markets expect

Patient Zero 99%

Next is Cleveland! at 3%. Only Kalshi lists this market, so there is no second price to compare.

Odds by venue

Consensus blends each venue’s last price, weighted by how much has traded there. Best Yes price is the cheapest ask across venues, and the payout is what a winning $100 stake returns before fees. Open a row for each venue’s contract name, bid and ask, and how closely their rules match.

Prices come from our regular polls of each venue, the oldest 1 min ago. Ages are as of when this page was built.

  • Kalshi
Patient Zero
99%
Kalshi 99%polled, 1 min ago
Kalshi
Contract
Patient Zero
Last price
99%
As of
Polled 1 min ago
Buy Yes
—
Sell Yes
99¢
Volume
$190
Trade this on Kalshi
Cleveland!
3%
Kalshi 3%polled, 1 min agoBest Yes 3¢ on Kalshi, $100 pays $3,333 (33.3x)
Kalshi
Contract
Cleveland!
Last price
3%
As of
Polled 1 min ago
Buy Yes
3¢
Sell Yes
—
$100 on Yes pays
$3,333 (33.3x)
Volume
$235
Trade this on Kalshi
Babylon
2%
Kalshi 2%polled, 1 min agoBest Yes 2¢ on Kalshi, $100 pays $5,000 (50.0x)
Kalshi
Contract
Babylon
Last price
2%
As of
Polled 1 min ago
Buy Yes
2¢
Sell Yes
—
$100 on Yes pays
$5,000 (50.0x)
Volume
$254
Trade this on Kalshi
Boston
1%
Kalshi 1%polled, 1 min agoBest Yes 2¢ on Kalshi, $100 pays $5,000 (50.0x)
Kalshi
Contract
Boston
Last price
1%
As of
Polled 1 min ago
Buy Yes
2¢
Sell Yes
—
$100 on Yes pays
$5,000 (50.0x)
Volume
$673
Trade this on Kalshi
hate that i made you love me
1%
Kalshi 1%polled, 1 min agoBest Yes 1¢ on Kalshi, $100 pays $10,000 (100x)
Kalshi
Contract
hate that i made you love me
Last price
1%
As of
Polled 1 min ago
Buy Yes
1¢
Sell Yes
—
$100 on Yes pays
$10,000 (100x)
Volume
$4K
Trade this on Kalshi
I Knew It, I Knew You
1%
Kalshi 1%polled, 1 min agoBest Yes 2¢ on Kalshi, $100 pays $5,000 (50.0x)
Kalshi
Contract
I Knew It, I Knew You
Last price
1%
As of
Polled 1 min ago
Buy Yes
2¢
Sell Yes
—
$100 on Yes pays
$5,000 (50.0x)
Volume
$100
Trade this on Kalshi
Pink Clouding
1%
Kalshi 1%polled, 1 min agoBest Yes 2¢ on Kalshi, $100 pays $5,000 (50.0x)
Kalshi
Contract
Pink Clouding
Last price
1%
As of
Polled 1 min ago
Buy Yes
2¢
Sell Yes
—
$100 on Yes pays
$5,000 (50.0x)
Volume
$612
Trade this on Kalshi

Who resolves this market

Kalshi
Kalshi resolves via:
Kalshi (CFTC-regulated exchange), source: Billboard

How the odds have moved

The top 3 outcomes on both venues, with the consensus between them. Hover for exact values.

  • Patient Zero
  • Cleveland!
  • Babylon

Order books

Each venue’s resting orders for the selected outcome’s Yes contract, side by side. Top of book streams live; depth refreshes every 15 seconds.

Kalshi

Open on Kalshi ↗

Top of book

Connecting
Best bid
—
Spread
—
Best ask
—

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Depth · top 8 levels

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Recent trades

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What your stake buys

Enter a stake to see where it buys the most after fees, using each venue’s live order book.

$
Buy

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Buys at the asks resting now (taker orders), cheapest after fees first, from order-book snapshots up to 15 seconds old. Fees: Kalshi 0.07 × price × (1 − price) per share, rounded up to the cent; Polymarket 0.05 × price × (1 − price) per share (culture rate). Fee calculator. Estimates only, not advice.

About this market

Live prediction market odds for "Which songs will be #1 on the Billboard Hot 100 in October?". Patient Zero leads at 99%. Next is Cleveland! at 3%. $13K has traded across 7 outcomes on Kalshi. The market is expected to resolve by Oct 31, 2026.

Kalshi event status: open

Questions

What does the consensus price mean?

It is the price of a Yes contract that pays $1 if the outcome happens. A 14¢ price means traders put the chance near 14%. Where two venues list the same outcome, we blend their last prices, weighting the venue with more trading volume more heavily (neither counts for less than a quarter). When only one outcome can win, each venue’s prices add up to a little over 100% (its margin); the fair chance removes that margin so the outcomes add up to exactly 100%.

How is the payout worked out?

A Yes contract pays $1 if it wins, so at the best ask a $100 stake buys 100 ÷ ask contracts. At 18¢ that is about 555 contracts, paying $556 (5.56x) if Yes happens. Venue fees and price slippage on larger orders are not included.

Why do the venues show different prices?

Each venue has its own traders, fees and order book. Contracts can also settle on slightly different terms, which is why each row lists how closely the rules match.

Is a price gap an arbitrage?

Only when you can buy Yes on one venue below what someone pays for Yes on the other, after fees, and both contracts settle the same way. We show the executable bid and ask so you can check.

How fresh are these prices?

Venue prices refresh every few minutes, and the order book and live quotes stream continuously. Each venue’s card shows when we last observed it.

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