The Prediction Markets

Sharks vs. Bruins

Starts in 39 hKickoff
Traded
$6K
Venues
Polymarket, Kalshi
Prices updated
just now
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What the markets expect

Sharks vs. Bruins: O/U 4.5 77%

Next is Boston at 62%. The venues differ most on San Jose (Polymarket 41.5%, Kalshi 39%), a 2.5-point gap.

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 4 min ago. Ages are as of when this page was built.

  • Polymarket
  • Kalshi
Sharks vs. Bruins: O/U 4.5
77%
Polymarket 77%polled, 57s agoBest Yes 90¢ on Polymarket, $100 pays $111 (1.11x)
Polymarket
Contract
Sharks vs. Bruins: O/U 4.5
Last price
77%
As of
Polled just now
Buy Yes
90¢
Sell Yes
64¢
$100 on Yes pays
$111 (1.11x)
Trade this on Polymarket
Boston
62%
Kalshi 62%polled, 4 min agoBest Yes 62¢ on Kalshi, $100 pays $161 (1.61x)
Kalshi
Contract
Boston
Last price
62%
As of
Polled 4 min ago
Buy Yes
62¢
Sell Yes
61¢
$100 on Yes pays
$161 (1.61x)
Volume
$756
Trade this on Kalshi
Sharks vs. Bruins: O/U 5.5
60%
Polymarket 60%polled, 57s agoBest Yes 62¢ on Polymarket, $100 pays $161 (1.61x)
Polymarket
Contract
Sharks vs. Bruins: O/U 5.5
Last price
60%
As of
Polled just now
Buy Yes
62¢
Sell Yes
58¢
$100 on Yes pays
$161 (1.61x)
Trade this on Polymarket
Sharks vs. Bruins: O/U 6.5
50%
Polymarket 50%polled, 57s agoBest Yes 52¢ on Polymarket, $100 pays $192 (1.92x)
Polymarket
Contract
Sharks vs. Bruins: O/U 6.5
Last price
50%
As of
Polled just now
Buy Yes
52¢
Sell Yes
48¢
$100 on Yes pays
$192 (1.92x)
Trade this on Polymarket
San JoseArb
40.6%
Polymarket 41.5%polled, 57s agoKalshi 39%polled, 4 min agoBest Yes 39¢ on Kalshi, $100 pays $256 (2.56x)
Polymarket
Contract
Sharks vs. Bruins
Last price
41.5%
As of
Polled just now
Buy Yes
42¢
Sell Yes
41¢
$100 on Yes pays
$238 (2.38x)
Volume
$3K
Trade this on Polymarket
Kalshi
Contract
San Jose
Last price
39%
As of
Polled 4 min ago
Buy Yes
39¢
Sell Yes
38¢
$100 on Yes pays
$256 (2.56x)
Volume
$2K
Trade this on Kalshi
Partial parity

Payoffs match in ordinary outcomes; see the rule differences below the table.

Buying on Kalshi at 39¢ and selling on Polymarket at 41¢ nets 200 bps before fees.

Sharks vs. Bruins: O/U 7.5
30%
Polymarket 30%polled, 57s agoBest Yes 32¢ on Polymarket, $100 pays $313 (3.13x)
Polymarket
Contract
Sharks vs. Bruins: O/U 7.5
Last price
30%
As of
Polled just now
Buy Yes
32¢
Sell Yes
28¢
$100 on Yes pays
$313 (3.13x)
Trade this on Polymarket

Possible arbitrage before fees: buy San Jose on Kalshi at 39¢, sell on Polymarket at 41¢ (200 bps). Check the rules below before trading. See all live spreads

Same bet: both pay the winner of the game

Ties: both venues pay 50/50.

Only differs in an edge case

  • If the game is postponed: Kalshi resolves to a fair price if the game does not start within 48 hours of the scheduled time; Polymarket stays open until the game is played and resolves 50-50 only if it is cancelled with no make-up.
Polymarket
Polymarket resolves via:
UMA optimistic oracle, source: nhl.com
Kalshi
Kalshi resolves via:
Kalshi (CFTC-regulated exchange), source: NHL, ESPN
Show full rule comparison
  • If the game is postponed: Kalshi resolves to a fair price if the game does not start within 48 hours of the scheduled time; Polymarket stays open until the game is played and resolves 50-50 only if it is cancelled with no make-up.
  • Ties: both venues pay 50/50.
  • Trading closes Oct 24, 2026, 11:00 PM UTC on Polymarket and Oct 26, 2026, 11:00 PM UTC on Kalshi.

Summarized from each venue’s published rules; the venue’s own rules page is the final word.

How the odds have moved

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

  • Sharks vs. Bruins: O/U 4.5
  • Boston
  • Sharks vs. Bruins: O/U 5.5

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.

Polymarket

Open on Polymarket ↗

Top of book

Connecting
Best bid
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Spread
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Best ask
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Depth · top 8 levels

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Recent trades

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Kalshi

Kalshi doesn’t list Sharks vs. Bruins: O/U 4.5 for this event.

What your stake buys

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

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

About this market

Live prediction market odds for "Sharks vs. Bruins". Sharks vs. Bruins: O/U 4.5 leads at 77%. Next is Boston at 62%. $6K has traded across 6 outcomes on Polymarket and Kalshi. The market is expected to resolve by Oct 24, 2026.

In the upcoming NHL game, scheduled for October 24 at 7:00PM ET: If the Sharks win, the market will resolve to "Sharks". If the Bruins win, the market will resolve to "Bruins". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. The result will be determined based on the final score including any overtime periods and shootouts. In the event of a shootout, one goal will be added to the winning team's score for the purpose of resolution.

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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