Nobody can tell you for sure, and over a whole window it is close to a coin flip: Up won 49.72% of Kalshi's 15-minute Bitcoin windows we checked. What changes is how much you can learn as the window runs. Kalshi's own price is a good guess, and in 20,891 windows it was about right: with 5 minutes left the side priced as the favorite won 82.96% of the time at an average price of 83.02 cents. The price already holds what you are trying to guess, so it is hard to beat after the fee.
Every 15 minutes Kalshi opens a new Bitcoin market: will Bitcoin finish the window at or above its starting line (Up) or below it (Down)? You buy Up or Down for some price under $1 and get $1 if you are right. The price is the market's guess at the odds: an Up contract at 70 cents means traders think Up is about a 70% chance. It is also your breakeven, the share of bets you need to win just to get your money back, before Kalshi's small fee. The full rules are in how these markets work.
Up won 49.72% of the 20,899 windows from March 24 to October 30, 2026. One minute in, with 14 minutes left, about 31.3% of windows (roughly 1 in 3.2) were still priced between 45 and 55 cents, a true toss-up. Even when the price already leaned one way, the favorite at that point won only 60.25% of the time, about what its 60.59-cent average price said.
Streaks do not help much either. Up five times in a row does not make Down due in a way you can cash in; see is Down due after a streak?
Here is how often the side Kalshi priced as the favorite went on to win, at each point in the window, next to what that side cost to buy:
| Time left in the window | Windows | Favorite won | Favorite cost (average) | Ahead or behind, before the fee (points) |
|---|---|---|---|---|
| 14 minutes left | 20,850 | 60.25% | 60.59 cents | -0.34 |
| 12 minutes left | 20,868 | 66.95% | 66.38 cents | +0.58 |
| 10 minutes left | 20,876 | 71.25% | 70.82 cents | +0.43 |
| 8 minutes left | 20,872 | 76.32% | 75.74 cents | +0.59 |
| 6 minutes left | 20,880 | 80.82% | 80.58 cents | +0.24 |
| 5 minutes left | 20,877 | 82.96% | 83.02 cents | -0.06 |
| 4 minutes left | 20,880 | 85.58% | 85.68 cents | -0.10 |
| 3 minutes left | 20,877 | 88.02% | 88.55 cents | -0.53 |
| 2 minutes left | 20,862 | 91.28% | 91.76 cents | -0.48 |
| 1 minute left | 20,737 | 95.76% | 95.50 cents | +0.25 |
The favorite wins more and more often as time runs out, but it also costs more and more. At every mark the favorite won about as often as its price said, within normal luck. (We use a bar of 2.81 standard errors because ten moments are tested at once.) Kalshi's fee then takes at least 1 cent per contract on a single-contract bet.
The side that is behind is not dead. With 5 minutes left, the underdog came back and won 17.04% of the time, about 1 window in 6. With 3 minutes left it was 11.98% (about 1 in 8), and even with 1 minute left it was 4.24% (about 1 in 24). With 96 windows a day, that is about 4 last-minute comebacks a day.
That is the other side of a high-priced favorite: a 95-cent contract wins most of the time, but one loss costs as much as 19 wins make. Can a 99-cent contract lose? Yes; see how often Bitcoin favorites lose.
We split the favorites by how much they cost at three moments, 10, 5 and 1 minutes before the close, and checked each price band:
| Favorite cost, 5 minutes left | Windows | Won | Average cost | Ahead or behind (points) |
|---|---|---|---|---|
| 50 to 59 cents | 2,072 | 54.54% | 55.08 cents | -0.54 |
| 60 to 69 cents | 2,513 | 63.11% | 64.55 cents | -1.44 |
| 70 to 79 cents | 2,832 | 75.11% | 74.71 cents | +0.40 |
| 80 to 89 cents | 3,773 | 84.39% | 84.83 cents | -0.44 |
| 90 to 94 cents | 3,765 | 93.01% | 92.36 cents | +0.66 |
| 95 to 99 cents | 5,922 | 97.77% | 97.51 cents | +0.26 |
| Favorite cost, 10 minutes left | Windows | Won | Average cost | Ahead or behind (points) |
|---|---|---|---|---|
| 50 to 59 cents | 4,900 | 55.82% | 55.00 cents | +0.81 |
| 60 to 69 cents | 5,242 | 64.00% | 64.42 cents | -0.42 |
| 70 to 79 cents | 4,859 | 74.17% | 74.33 cents | -0.16 |
| 80 to 89 cents | 4,045 | 85.36% | 84.23 cents | +1.14 |
| 90 to 94 cents | 1,495 | 93.65% | 91.71 cents | +1.94 |
| 95 to 99 cents | 335 | 97.61% | 96.25 cents | +1.36 |
| Favorite cost, 1 minute left | Windows | Won | Average cost | Ahead or behind (points) |
|---|---|---|---|---|
| 50 to 59 cents | 458 | 50.66% | 55.28 cents | -4.62 |
| 60 to 69 cents | 550 | 64.73% | 64.82 cents | -0.09 |
| 70 to 79 cents | 663 | 75.41% | 74.90 cents | +0.52 |
| 80 to 89 cents | 996 | 87.65% | 84.94 cents | +2.71 |
| 90 to 94 cents | 1,190 | 93.53% | 92.48 cents | +1.05 |
| 95 to 99 cents | 16,880 | 99.43% | 99.24 cents | +0.18 |
Most bands landed within a point or two of their price, in both directions. With 18 bands tested, the bar for "more than normal luck" is 2.99 standard errors, and two cleared it: favorites priced 90 to 94 cents with 10 minutes left won 93.65% at an average 91.71 cents (1,495 windows), 1.94 points above their price before the fee and 0.94 points above it after a 1-cent fee on one contract; favorites priced 95 to 99 cents with 1 minute left won 99.43% at an average 99.24 cents (16,880 windows), 0.18 points above their price before the fee and 0.82 points below it after a 1-cent fee on one contract. Two bands out of 18 can be a fluke, and the asks are minute-end snapshots, not prices anyone is promised. We will check again next month. They are a measurement, not a tip.
Our paid feed sends a call about two minutes before most windows close: our model's read beside the live Kalshi price. Every call is graded in public, and the record is 91.1% won across 13,340 graded calls at a 91.6 cent average price. At that price you have to win that often just to break even, so the record sits below breakeven before Kalshi's fee and further below after it. That fits everything above: late in the window the price already knows most of what there is to know. Why a high win rate is not profit is explained in does a high win rate make money on Kalshi?
Want to see the window trading right now? Our free live window page shows the current strike, the countdown and both prices. It is market data only, not a prediction.
Nobody can tell you reliably. Over a whole Kalshi 15-minute window it is close to a coin flip: Up won 49.72% of 20,899 windows from March 24 to October 30, 2026. As the window runs, Kalshi's price becomes a good guess, and it was about right: the favorite won about as often as it cost.
It depends on the time left. In 20,891 windows, the side priced above 50 cents won 71.25% of the time with 10 minutes left, 82.96% with 5 minutes left and 95.76% with 1 minute left, each time close to what it cost to buy.
Yes. With 5 minutes left the underdog won 17.04% of the time (about 1 in 6), and with 1 minute left 4.24% (about 1 in 24). That is about 4 last-minute comebacks a day across 96 windows.
Not reliably in our data. The favorite won about as often as its price at every point we checked, and Kalshi's fee takes at least 1 cent per contract on a single-contract bet. Our own alert feed sits below breakeven at its prices. Any single window can lose your whole stake. This is not betting advice.
On Kalshi itself, or on our free live window page, which shows the window trading now, its official strike, the countdown and both prices. It is market data only, not a prediction.
We used Kalshi's published result for every Bitcoin 15-minute window from March 24 to October 30, 2026 and its public minute-by-minute price history (20,891 of 20,899 windows had it). At each moment we took the last full minute's best bid and best ask; the favorite is the side whose midpoint was above 50 cents, and its cost is Kalshi's asking price for that side. Exact 50-cent midpoints are left out. The bars for "more than normal luck" correct for testing many rows at once. Every count on this page is in a small spreadsheet you can download.
A price on a chart is not a promise that you get that price, and what happened in 2026 does not promise what happens next. This page measures the market, not our alerts. DegenHedge is independent and is not affiliated with or endorsed by Kalshi.
Related: is Down due after a streak? · can a 99-cent bet lose? · how settlement works · current window, live
Free to read, free to check. Want to watch our calls get graded before paying anything? Follow the free @DegenHedgeProof Telegram channel; the paid feed is optional.
Every signal in our BTC 15-minute feed goes into a public results log and a downloadable CSV, graded against Kalshi's official result, losses included, with nothing pulled. The same record is available as JSON from our read-only API.
This is a free trial that becomes an automatically renewing subscription. Eligible new customers receive a 30-day trial with a payment card and $0 due today. Returning trial users see $4.99 due today before checkout. At the end of it your card is charged $4.99 and then $4.99 every month until you cancel. Cancel any time before the trial ends and you pay nothing: use your account page, send /manage in the bot, or email [email protected]. Cancelling later stops future renewals at the end of the current paid month and does not refund it. No refunds except as required by law. By starting a trial you authorize these recurring charges and agree to the Terms and Privacy Policy. Signals are informational and for entertainment only, are not financial or betting advice, and any single signal can lose 100% of your stake. Must be 18+ (some platforms require 21+). If gambling is a problem for you, call 1-800-GAMBLER.
These are 15-minute binary prediction-market contracts. Any single window can lose 100% of your stake. They settle on a 60-second index average, not on the exchange chart you may be watching. At high prices a loss costs many times what a win pays, and Kalshi's fee raises the win rate you need above the price. Nothing on this page is financial, investment, or betting advice.
Past performance does not guarantee future results. Trade only with money you can afford to lose. Must be 18+ or of legal age where you live. If gambling is a problem for you, call 1-800-GAMBLER.