The Prediction Markets

Massachusetts gas prices tomorrow

Closes
Oct 23, 2026, in 7 hours
Traded
$16K
Venues
Kalshi
Prices updated
just now
Share

What the markets expect

Above 4.2050 99%

Next is Above 4.2100 at 99%. 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. Ages are as of when this page was built.

  • Kalshi
Above 4.2050
99%
Kalshi 99%polled, 50s ago
Kalshi
Contract
Above 4.2050
Last price
99%
As of
Polled just now
Buy Yes
—
Sell Yes
91¢
Volume
$2K
Trade this on Kalshi
Above 4.2100
99%
Kalshi 99%polled, 50s ago
Kalshi
Contract
Above 4.2100
Last price
99%
As of
Polled just now
Buy Yes
—
Sell Yes
97¢
Volume
$2K
Trade this on Kalshi
Above 4.2150
99%
Kalshi 99%polled, 50s ago
Kalshi
Contract
Above 4.2150
Last price
99%
As of
Polled just now
Buy Yes
—
Sell Yes
97¢
Volume
$2K
Trade this on Kalshi
Above 4.2200
99%
Kalshi 99%polled, 50s ago
Kalshi
Contract
Above 4.2200
Last price
99%
As of
Polled just now
Buy Yes
—
Sell Yes
97¢
Volume
$867
Trade this on Kalshi
Above 4.2250
98%
Kalshi 98%polled, 50s agoBest Yes 98¢ on Kalshi, $100 pays $102 (1.02x)
Kalshi
Contract
Above 4.2250
Last price
98%
As of
Polled just now
Buy Yes
98¢
Sell Yes
90¢
$100 on Yes pays
$102 (1.02x)
Volume
$265
Trade this on Kalshi
Above 4.2300
95%
Kalshi 95%polled, 50s agoBest Yes 97¢ on Kalshi, $100 pays $103 (1.03x)
Kalshi
Contract
Above 4.2300
Last price
95%
As of
Polled just now
Buy Yes
97¢
Sell Yes
90¢
$100 on Yes pays
$103 (1.03x)
Volume
$3
Trade this on Kalshi
Above 4.2350
17%
Kalshi 17%polled, 50s agoBest Yes 17¢ on Kalshi, $100 pays $588 (5.88x)
Kalshi
Contract
Above 4.2350
Last price
17%
As of
Polled just now
Buy Yes
17¢
Sell Yes
11¢
$100 on Yes pays
$588 (5.88x)
Volume
$3K
Trade this on Kalshi
Above 4.2400
7%
Kalshi 7%polled, 50s agoBest Yes 7¢ on Kalshi, $100 pays $1,429 (14.3x)
Kalshi
Contract
Above 4.2400
Last price
7%
As of
Polled just now
Buy Yes
7¢
Sell Yes
1¢
$100 on Yes pays
$1,429 (14.3x)
Volume
$13
Trade this on Kalshi
Above 4.2450
4.5%
Kalshi 4.5%polled, 50s agoBest Yes 8¢ on Kalshi, $100 pays $1,250 (12.5x)
Kalshi
Contract
Above 4.2450
Last price
4.5%
As of
Polled just now
Buy Yes
8¢
Sell Yes
1¢
$100 on Yes pays
$1,250 (12.5x)
Trade this on Kalshi
Above 4.2500
1.5%
Kalshi 1.5%polled, 50s agoBest Yes 2¢ on Kalshi, $100 pays $5,000 (50.0x)
Kalshi
Contract
Above 4.2500
Last price
1.5%
As of
Polled just now
Buy Yes
2¢
Sell Yes
1¢
$100 on Yes pays
$5,000 (50.0x)
Trade this on Kalshi
Show 7 more outcomes
Above 4.2550
1%
Kalshi 1%polled, 50s agoBest Yes 6¢ on Kalshi, $100 pays $1,667 (16.7x)
Kalshi
Contract
Above 4.2550
Last price
1%
As of
Polled just now
Buy Yes
6¢
Sell Yes
—
$100 on Yes pays
$1,667 (16.7x)
Volume
$200
Trade this on Kalshi
Above 4.2600
1%
Kalshi 1%polled, 50s agoBest Yes 8¢ on Kalshi, $100 pays $1,250 (12.5x)
Kalshi
Contract
Above 4.2600
Last price
1%
As of
Polled just now
Buy Yes
8¢
Sell Yes
—
$100 on Yes pays
$1,250 (12.5x)
Volume
$1K
Trade this on Kalshi
Above 4.2650
1%
Kalshi 1%polled, 50s agoBest Yes 8¢ on Kalshi, $100 pays $1,250 (12.5x)
Kalshi
Contract
Above 4.2650
Last price
1%
As of
Polled just now
Buy Yes
8¢
Sell Yes
—
$100 on Yes pays
$1,250 (12.5x)
Volume
$1K
Trade this on Kalshi
Above 4.2700
1%
Kalshi 1%polled, 50s agoBest Yes 8¢ on Kalshi, $100 pays $1,250 (12.5x)
Kalshi
Contract
Above 4.2700
Last price
1%
As of
Polled just now
Buy Yes
8¢
Sell Yes
—
$100 on Yes pays
$1,250 (12.5x)
Volume
$1K
Trade this on Kalshi
Above 4.2750
1%
Kalshi 1%polled, 50s agoBest Yes 8¢ on Kalshi, $100 pays $1,250 (12.5x)
Kalshi
Contract
Above 4.2750
Last price
1%
As of
Polled just now
Buy Yes
8¢
Sell Yes
—
$100 on Yes pays
$1,250 (12.5x)
Volume
$1K
Trade this on Kalshi
Above 4.2800
1%
Kalshi 1%polled, 50s agoBest Yes 8¢ on Kalshi, $100 pays $1,250 (12.5x)
Kalshi
Contract
Above 4.2800
Last price
1%
As of
Polled just now
Buy Yes
8¢
Sell Yes
—
$100 on Yes pays
$1,250 (12.5x)
Volume
$343
Trade this on Kalshi
Above 4.2850
1%
Kalshi 1%polled, 50s agoBest Yes 8¢ on Kalshi, $100 pays $1,250 (12.5x)
Kalshi
Contract
Above 4.2850
Last price
1%
As of
Polled just now
Buy Yes
8¢
Sell Yes
—
$100 on Yes pays
$1,250 (12.5x)
Volume
$2K
Trade this on Kalshi

Who resolves this market

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

How the odds have moved

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

  • Above 4.2050
  • Above 4.2100
  • Above 4.2150

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
—

Waiting for the first live quote…

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 (economics rate). Fee calculator. Estimates only, not advice.

About this market

Live prediction market odds for "Massachusetts gas prices tomorrow". Above 4.2050 leads at 99%. Next is Above 4.2100 at 99%. $16K has traded across 17 outcomes on Kalshi. The market is expected to resolve by Oct 23, 2026.

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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