Match-day edition. Kalshi prices, volume and trade history as of Wednesday, September 9, 2026, about 2:55 a.m. ET, pulled from Kalshi's public market data; the DraftKings line is from ESPN's odds page at the same time, and the second book's line is the one SportsGambler's preview quotes. Kickoff is 12:45 p.m. ET at the Spotify Camp Nou, on Paramount+ in the US. Every number below moves before then.
The Quick Answer
About ten hours before Barcelona host Feyenoord in their Champions League league-phase opener, Kalshi has Barcelona at 90 cents bid, 91 ask to win after 90 minutes plus stoppage time, the draw at 6 bid, 7 ask, and Feyenoord at 2 bid, 4 ask, on about 769,000 contracts traded across the three legs and 729,000 still open. The favorite's leg alone has absorbed 493,000 of that volume, 96% of it bought. A 91-cent contract pays 9 cents, and Kalshi takes a fee on top, so the question this page exists to answer is whether any of the three legs is worth owning once that fee is in the cost. The short version: the favorite survives the fee and beats the sportsbook; the draw does not; and the cheapest way to hold the other side of Barcelona is a contract Kalshi does not list by name. The fee arithmetic, the Tuesday-night tape that ran the price to 92, and the side-by-side with DraftKings are below.
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Three Legs, And Only One Question That Matters
Nobody needs a market to tell them Barcelona are favored here. They have won all four La Liga games this season by a combined 17 goals to 2, they beat Valencia 5-0 away on Sunday, and they have never lost at home to a Dutch club in European competition, seven wins and three draws from ten. Feyenoord finished second in the Eredivisie last season, 19 points behind PSV, and arrive third in this one after three wins and two draws. A market pricing the home side in the low 90s is describing a mismatch everyone can see, and if the mechanics of a Kalshi contract are new to you, what a Kalshi price actually means covers them in five minutes; the rest of this page assumes them.
What a board like this changes is the kind of question worth asking. With a 59-cent favorite, as on Porto vs Manchester City on Tuesday, the argument is about who wins. With a 91-cent favorite, the argument is about arithmetic: a contract that pays 9 cents on 91 has almost no room for a fee, and Kalshi charges one on every trade that takes liquidity. So this page runs the fee through all three legs, then through the one position the exchange does not list, and it turns out the three legs give three different answers. Before the arithmetic, though, the tape, because 769,000 contracts is a lot of people who have already made up their minds, and the way they did it on Tuesday night says something about what the number is worth.
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The Board, And The 90,000 Contracts That Ran It To 92
Kalshi lists the match under the event ticker KXUCLGAME-26SEP09BARFEY: one yes/no contract per outcome, each paying $1 if that result stands after 90 minutes plus stoppage time, with extra time and penalties excluded. The three contracts were listed at 8:39 p.m. ET on September 1. The first print on the Barcelona leg came four minutes later: 38 contracts bought at 75 cents. Two 1,000-contract buys at 81 and 84 followed inside a minute, and by 9:14 p.m. the leg was trading at 88. It has not been below 87 since.
| Contract | Bid | Ask | Last Trade | 24-Hour Volume | Lifetime Volume | Open Interest |
|---|---|---|---|---|---|---|
| Barcelona | 90¢ | 91¢ | 91¢ | ~383,300 contracts | ~493,000 | ~463,400 |
| Tie | 6¢ | 7¢ | 7¢ | ~30,800 contracts | ~35,700 | ~34,700 |
| Feyenoord | 2¢ | 4¢ | 4¢ | ~203,100 contracts | ~240,700 | ~230,400 |
Read the Barcelona row first, because it is where the week happened. Of the 493,000 contracts ever traded on the leg, 472,000 were bought by the aggressor and 20,600 sold, a 96-to-4 split. About 463,000 of them are still open, so this was a week of new positions being built, not old ones changing hands. The building was slow for the first week: 2,200 contracts on the listing night, under 2,000 on each of the next three days, then 6,300 on Saturday as the first sign of it picking up. Then 48,000 on Sunday, when the first 91-cent print went through at 2:43 p.m. ET, and 40,000 on Monday, the first day with any real selling in it, 7,900 contracts, the biggest of them 4,754 hit at 89 cents at 1:41 a.m.
Tuesday, September 8, was the market's whole life in one day: 328,790 contracts, 316,814 of them bought and 11,977 sold, two-thirds of everything the leg has ever traded. The 5 p.m. ET hour alone did 79,459, with a single 18,564-contract buy at 91 at 5:04 p.m., and the number held at 91 through the early evening. At 7:59:50 p.m. the first 92-cent print of the leg's life went through, and in the five minutes that followed, 32 prints totalling 90,176 contracts were bought, 77,691 of them at 92 cents. Two of those prints are the largest the market has seen: 42,078 contracts at 7:59:56 p.m. and 26,775 at 8:03:33 p.m., both at 92. The 92-cent price lasted less than two hours; the last print at that level was 9:41:50 p.m., after which the leg settled back to 91 and stayed there through the overnight, another 37,000 contracts in the 1 a.m. hour alone, every one of the last prints before the pull a buy at 91. Whoever paid 92 for 97,625 contracts on Tuesday evening owns a position the book has already marked down a cent.
The Feyenoord row is the surprise. A 4-cent contract has traded 240,000 contracts, half the favorite's volume, and 96.5% of it was bought, 152,000 of it on Tuesday alone. The price has not rewarded the buyers: 5 cents last printed on Sunday morning, 3-cent prints started at 5:56 a.m. Monday and have absorbed 51,000 contracts since, and at 7:47 p.m. Tuesday the first 2-cent print went through, 17 of them in all, every one a sell. The bid sits at 2 and the ask at 4, the only two-cent spread on the board, and the draw tells the same story at a smaller scale: 34,000 of its 35,700 contracts traded at 7 cents, including one 5,000-contract buy at 11:23 a.m. Tuesday, while the only 6-cent prints, 1,032 contracts across 11 trades, were all sells. Across all three legs, the taker has been a buyer 96 times in 100. That is a market where nearly everybody wants to own something and almost nobody wants to be short, and it is why the asks sum to 102 cents while the bids sum to 98.
What The Fee Does To 91 Cents, A Worked Example
Kalshi does not price its margin into the line the way a sportsbook does; it charges a fee when a trade takes liquidity off the book, and the fee formula is 0.07 times the contract count times the price times one minus the price, rounded up to the next cent. That formula is smallest at the extremes, which is the whole reason a 91-cent favorite is worth examining rather than dismissing. One hundred Barcelona contracts at 91 cents carry a fee of 57 cents, rounded up to 58, so the position costs $91.58 and returns $100 if Barcelona win. That is a profit of $8.42 on $91.58, a 9.2% return, with a break-even of 91.6%.
Now put a sportsbook beside it. DraftKings, via ESPN's odds page, has Barcelona at -1400, which means $100 returns $107.14 and the break-even is 93.3%. The book SportsGambler's preview quotes, Thrill, is -1429, a 93.5% break-even. The de-vig walkthrough for Kalshi has the full method for turning three prices into fair ones; in brief, DraftKings' three prices carry break-even rates of 93.3%, 7.1% and 4.3%, a sum of 104.8%, and stripping that margin out leaves a no-vig line of 89.0% Barcelona, 6.8% draw, 4.1% Feyenoord. Kalshi's asks sum to 102 and de-vig to 89.2, 6.9 and 3.9. Kalshi and DraftKings agree on the favorite to within a fifth of a point before margin, and Thrill's 89.4 is within half a point of both. After margin, they do not agree at all.
| Position | Kalshi Cost Per 100 (Ask + Fee) | Break-Even On Kalshi | DraftKings Line | Break-Even At DraftKings | $100 Returns On Kalshi (Approx.) | $100 Returns At DraftKings (Approx.) |
|---|---|---|---|---|---|---|
| Barcelona To Win | $91 + $0.58 = $91.58 | 91.58% | -1400 | 93.33% | $109 | $107 |
| Draw | $7 + $0.46 = $7.46 | 7.46% | +1300 | 7.14% | $1,340 | $1,400 |
| Feyenoord To Win | $4 + $0.27 = $4.27 | 4.27% | +2200 | 4.35% | $2,342 | $2,300 |
| Barcelona Resting At The 90¢ Bid (Maker, If Filled) | $90 + $0.16 = $90.16 | 90.16% | n/a | n/a | $111 | n/a |
The first row answers the title. The favorite's leg survives the fee, and it is the better of the two prices by nearly two points: 91.6% to break even on Kalshi against 93.3% at DraftKings, $109 back on $100 against $107. A -1400 line carries a lot of book margin on a favorite, more than the exchange's one-cent spread plus a half-cent fee, and the exchange's own fair estimate, 89.2, sits almost exactly on the book's 89.0. The 91 cents is not cheap in any absolute sense, but it is the cheapest Barcelona of the venues on this page, and the other exchange does not beat it either: Betfair's 1/12 is a 92.3% break-even before its commission, against Kalshi's 91.6% with the fee already counted. The fourth row is the version of the same trade for anyone patient: an order resting at the 90-cent bid, if it fills, pays the reduced maker rate on this series, about 16 cents per hundred, for a 90.2% break-even.
The second row is the leg that does not survive. At 7 cents, the fee is 46 cents per hundred, which sounds like nothing until you notice it is more than 6% of the stake; the draw breaks even at 7.46% on Kalshi and at 7.14% at DraftKings, and $100 returns about $1,340 on the exchange against $1,400 at the book. On a leg where the fee is a large fraction of the price, the sportsbook's +1300 is the better number, and Thrill matches it. The third row is a wash: Feyenoord at 4 cents plus 27 cents of fee breaks even at 4.27%, DraftKings' +2200 at 4.35%, $2,342 against $2,300, forty-odd dollars on a $100 stake at a payout both venues say lands about one time in 23. If Feyenoord's price is what you want, the exchange is a shade cheaper, and Thrill's +2400 is cheaper than either.
So the fee gives three different verdicts on three legs. There is also a fourth position on this board, and it is the one our own soccer handicappers would have asked about first.
The Draw-No-Bet Problem At 10 Cents
Soccer is a three-way sport, and the first rule they work from is to respect the draw: back a team straight and a tie loses, which is why their default wrapper is draw-no-bet, or its disguise, the +0.5 handicap. When the favorite is 91 cents that instinct gets inverted. The interesting side is not Barcelona with the draw removed; it is Feyenoord with the draw included, the 11 cents of the board that pays if the favorite does anything but win. Kalshi lists no such contract. What it lists is the No side of every leg, and the No side of Barcelona pays $1 if Feyenoord win or draw. With Barcelona at 90 bid, that No costs 10 cents, plus a 63-cent fee per hundred, for a cost of $10.63 and a break-even of 10.63%. That is the same 6% fee drag that sank the draw a section ago, and the position wears it all the same; it wins the comparison only because every other way of holding the outcome pays more.
Compare that with every other way of holding the same outcome. Buying the draw and Feyenoord as separate Yes contracts on the exchange costs 7 plus 4, 11 cents, plus 46 cents of fee per hundred on the draw and 27 on Feyenoord, 73 cents combined, for a break-even of 11.73%. ESPN's DraftKings page lists no +0.5 line on this match; the book's two legs sum to 11.49% at the posted prices, and even its no-vig draw and Feyenoord sum to 10.96%. The No side of Barcelona at 10 cents is cheaper than all three, cheaper than the exchange's own two legs by more than a cent a contract, and cheaper than the book's fair price for the same outcome. It is the only position on this page where the exchange undercuts every comparable price, including its own, for the reason our Valencia vs Barcelona page found on Sunday and the Porto page found on Tuesday morning: an exchange's No side is just the other side of a spread, not a second margin line, and on a board where 96% of takers are buyers, the bid on the favorite is where the discount sits.
The side boards say how the market thinks that 10 cents loses. Barcelona by more than 1.5 goals is 78 bid, 79 ask; Barcelona by more than 2.5 is 61 bid, 62 ask, up from a 58-cent reference and, at 63,000 contracts, the deepest side market on the match. Subtract the exchange's 61 or so cents on a three-goal margin from its 89-cent fair estimate on a Barcelona win of any size and the market is putting about 28 points on a one- or two-goal Barcelona win, the outcomes on which a 10-cent No loses by the least. DraftKings prices Barcelona -3.5 at +115 and Feyenoord +3.5 at -160, a 108% line that de-vigs to 43% on a four-goal Barcelona win; the exchange's 62 cents on three or more is a different bet and stays out of the comparison. The total is deepest at 4.5 goals, 48 bid, 49 ask on 57,000 contracts, a 48.5% fair estimate for the over, and DraftKings' line on the same total de-vigs to 49.5%; the two venues agree on the total to within a point. Both teams to score is 49 bid, 50 ask on the exchange, down from 51, a 49.5% fair estimate against a 50.5% no-vig at DraftKings. And the first-half board is the one place the exchange and the book disagree by a lot: Kalshi has Feyenoord to win the first half at 5 bid, 6 ask, on 1,740 contracts, a 5.9% fair estimate, while DraftKings' +700 de-vigs to 11.3%. That is a thin market and a thin read, but a book pricing the visitors twice as likely to lead at half-time as the exchange does is a real disagreement about how this match starts, and it feeds the same 10-cent question.
What Feyenoord Bring, And What They Sold Nine Days Ago
Start with the case for 10 cents, because the tape has not made it. Feyenoord are unbeaten in the Eredivisie this season: 1-0 at Sparta Rotterdam, 2-2 with Go Ahead Eagles, 5-2 at Cambuur, 2-2 with ADO Den Haag and 3-1 at NEC Nijmegen on Saturday, 13 scored and 7 conceded, and they have scored at least twice in four of the five. Gjivai Zechiël has four league goals and Luciano Valente, the captain, three. At NEC the game was goalless at half-time before Zechiël broke it in the 52nd minute and Valente and Jerayno Schaken added two more. Goals scored and conceded and a counted unbeaten run are the first two things our handicappers read, and Feyenoord's numbers read as a side that scores nearly twice what it leaks and has not kept a clean sheet since the opening day.
Now the discount, which is real and recent. Ayase Ueda scored 25 league goals for Feyenoord last season, 26 in all competitions, and three of the 13 this season; on August 31 the club sold him to Lille for 15 million euros, nine days before this match. He is the fourth significant sale of the summer, after Leo Sauer to Stuttgart for 15 million, Anel Ahmedhodžić to Burnley for 7 million and Hwang In-beom to Porto for 4.5 million, against 20 million spent on Charles Vanhoutte, Nacho Ferri and Tjark Ernst, with Mika Mármol arriving free from Las Palmas in June and Florian Kastenmeier and Reiss Nelson on free transfers in the first two days of September. The manager is new too: Giovanni van Bronckhorst, who won the 2016-17 title in his first spell, was rehired in mid-June on a two-year contract after the club dismissed Robin van Persie despite the runner-up finish. And the absentee list runs to five: Thomas Beelen with a broken leg, Bart Nieuwkoop, Gijs Smal with an ankle injury, Jakub Moder and Jordan Bos with knee injuries, per Sports Mole, whose predicted XI has Ernst behind Read, St. Juste, Watanabe and Mármol, with Vanhoutte, Zechiël and Targhalline in midfield and Valente, Ferri and Diarra in front of them. A team that just sold its top scorer, changed its manager and is missing five players is the team the tape has priced at 4 cents, and none of that is unreasonable. The one number in the visitors' favor is on the sportsbook's side of the page: DraftKings prices Feyenoord to score at least once at -125, about 56% before margin, which is a book saying the post-Ueda attack finds the net in this game more often than not. A team that scores is a team that can draw, and that is the strongest argument this page can find for the 10-cent No. The question is only whether it is worth the 87 cents of daylight the board gives the home side.
What Barcelona Bring To The Camp Nou
The home side's case needs less arguing than any favorite on this week's slate. Hansi Flick's Barcelona are four from four in La Liga with 17 goals scored and 2 conceded: 5-0 at Elche, 2-0 against Athletic Club, 5-2 against Rayo Vallecano and 5-0 at Valencia on Sunday, where Lamine Yamal scored in the sixth minute and again late on, and Fermín López, Raphinha and Pedri scored the others. Add the 2-1 Gamper win over Al Ahly and it is five straight to open the season. The summer bought a spine to go with the wingers: Rodri from Manchester City for an initial 60 million euros with up to 16.5 million in add-ons, on a four-year deal, and Anthony Gordon from Newcastle for 70 million plus 10 million in add-ons, on a contract to 2031, after 17 goals and 5 assists for Newcastle last season. Sports Mole's predicted XI starts both, Rodri beside Pedri and Gordon alongside Yamal and Fermín López behind Raphinha.
The gaps are on the defensive side. Eric García is suspended, a one-match ban carried over from a red card in April's Champions League quarter-final against Atlético Madrid, the tie that ended Barcelona's last European campaign 3-2 on aggregate; he was also caught in the face by his teammate Rodri at Valencia, though the ban rules him out regardless. Frenkie de Jong is out with a knee injury he chose to treat without surgery, with Flick talking about "a few weeks" and October the likelier return, and Roony Bardghji's ACL injury rules him out for most of the season. Gavi is back in the squad after three games out and was an unused substitute on Sunday. Andreas Christensen is the predicted replacement for García beside Pau Cubarsí, with Jules Koundé and Xavi Espart at full-back and Joan García in goal.
Put prices on that list, because the board already has. A back line with its suspended center-back replaced is the reason the 10-cent No is worth a look at all, and it is also the reason both teams to score sits at 49 bid, 50 ask rather than lower: the market thinks Feyenoord score about half the time against this defense. Rodri and Gordon starting is what the 78-cent line on Barcelona by two or more goals is pricing, and the 61-cent line on three or more, up from 58, says traders expect the midfield the summer bought to turn a win into a rout more often than not. The 17-2 goal record is the 4.5-goal total at 48 bid, 49 ask: a market asking for five goals in a game and calling it a coin flip is a market that expects Barcelona to score four on their own.
And then the record that the 91 cents leans on hardest. The clubs have met once in Europe, in the second round of the 1974-75 European Cup, which Barcelona won 3-0 on aggregate on the way to a semi-final defeat by Leeds United. Barcelona have played ten home European games against Dutch clubs and never lost one, seven wins and three draws, 31 goals scored and 7 conceded. Recall the 96-to-4 buy-sell split on the favorite's leg: this is what 472,000 contracts of buying were looking at, and the book that priced Barcelona at -1400 was looking at the same thing.
Which Leg Is Actually Worth Owning
Line the sections up. The favorite's leg is where the money is, where Tuesday night's 90,000-contract burst paid 92, and where the exchange is nonetheless cheaper than both sportsbooks once the fee is in the cost: 91.6% to break even against 93.3% and 93.5%. The draw is the one leg where the fee outweighs the exchange's tighter spread and the book's +1300 is the better number. Feyenoord's moneyline is a coin toss between venues, a few dollars on a payout in the low twenties to one. And the No side of Barcelona at 10 cents is cheaper than every other way of holding Feyenoord-or-draw on this page, by more than a cent a contract against the exchange's own two legs, by nearly a point against the book's posted prices and by a third of a point against the book's fair price.
The one I keep coming back to is the last of those, not because I think Feyenoord get a result at the Camp Nou, but because it is the only position on the board where the exchange's price is below every comparable price, including its own. A reader who thinks a side that has scored twice in four of five games and just watched Barcelona concede two to Rayo Vallecano has more than a one-in-ten chance of leaving Spain with a point is looking at 10.63% against a book fair price of 10.96 and an exchange two-leg price of 11.73. On this board those are the only three numbers that matter to that reader. Read that as a description of where the venues disagree, not an instruction; the market has 472,000 contracts of buying behind the other view, and whoever bought 42,078 contracts at 92 cents at 7:59 p.m. on Tuesday was not guessing either. The favorite's own leg is the honest answer to the title: 91 cents survives the fee, beats -1400, and pays about 9% if a home side with a 17-2 goal record beats visitors who sold their top scorer nine days ago.
What moves it before kickoff is a short list. The team sheets land about an hour before the 12:45 p.m. ET start, and the two names to check are Christensen's, as García's replacement, and whether Van Bronckhorst starts Ferri, the 9-million-euro signing, as Ueda's replacement or goes to Nelson, the free agent signed a week ago. An early Barcelona goal reprices the 10-cent No faster than anything the pre-match tape did; a goalless half-hour does the opposite, because a Feyenoord side that was 0-0 at half-time at NEC on Saturday has shown it can hold a first half. Our handicappers post their reads on cards like this one for free on the free expert picks today hub, the Kalshi picks today hub runs the daily version of this exercise across every liquid board, the Kalshi soccer picks hub carries the rest of this week's European boards, and if the competition itself interests you more than one Wednesday of it, our Champions League winner odds page prices the whole tournament.
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The Bottom Line On Barcelona Vs Feyenoord Odds
Zoom back out. Ten hours before kickoff, an exchange and two sportsbooks have priced the same Champions League opener and agree on the favorite to within half a point before margin, so the 91 cents is not where the argument is. The argument is what the fee does to it, and the answer is that it does less than the book's margin does: 91 cents plus a half-cent fee is a 91.6% break-even, -1400 is a 93.3% one, and on a favorite this heavy that gap is the whole edge. The tape shows how the number got there, two-thirds of the leg's lifetime volume on one Tuesday, 96% of it bought, a five-minute burst of 90,000 contracts that ran the price to 92 and a market that marked it back to 91 within two hours. The reading rule I would carry into the team sheets is simple. If Barcelona's ask is 91 with DraftKings still at -1400, the exchange is the cheaper Barcelona, and a resting order at 90 is cheaper still if it fills, with the caveat that on a leg where 96% of takers are buyers a resting bid mostly fills when the price comes down to meet it, which is to say on news that hurts the position, not on a quiet morning. If the draw is what you want, the book's +1300 beats the exchange's 7 cents once the fee is counted. And if you think the visitors get a result, the No side of Barcelona at 10 cents is the cheapest version of that view on the board, cheaper than buying the draw and Feyenoord separately on the same exchange. Re-run every one of those numbers at whatever the live quotes say, because a leg that absorbed 329,000 contracts on Tuesday will not sit still through a team sheet.
Price-shopping is the entire edge on a match where the venues agree on the favorite and disagree only on what they charge for it, and doing it by hand across a dozen books and an exchange is the slow way. On this board it is the difference between Kalshi's 91.6% break-even on Barcelona and DraftKings' 93.3%, or the book's +1300 on the draw against the exchange's 7 cents plus fee. Our live soccer odds screen lines up every major sportsbook's price side by side, so you shop the number across every book instead of taking the first one, and OddsShopper flags the prices in your favor automatically. The 7-day OS Pro trial is free, and code CAMPNOU20 is good for 20% off your first month after it.
