TOTAL VOLUME:

$134.2b

24H VOL:

$134,145,987

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,441,166,947

406,422

Markets across

30,383

events

MATCHED EVENTS:

2,688

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Science and Technology
Open Source market share on Sep 18th
kalshi

What is open source market share?

Volume:
$27,662

Above 65%

 - Kalshi

Above 65% - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Sep 19, 2026

Closed: Sep 19, 10:00 AM EST

kalshi

Kalshi

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Join Kalshi and score $25 for your first trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

Above 65%

View
100%
Yes 100¢No 0¢
100¢
N/A
$6,292
N/A
N/A
$6,292
Settled
Yes
kalshi

Above 72.5%

100%
Yes 100¢No 0¢
100¢
N/A
$4,181
N/A
N/A
$2,227
Settled
Yes
kalshi

Above 70%

100%
Yes 100¢No 0¢
100¢
N/A
$2,732
N/A
N/A
$2,600
Settled
Yes
kalshi

Above 77.5%

100%
Yes 100¢No 0¢
100¢
N/A
$1,893
N/A
N/A
$1,893
Settled
Yes
kalshi

Above 75%

100%
Yes 100¢No 0¢
100¢
N/A
$1,798
N/A
N/A
$1,783
Settled
Yes
kalshi

Above 67.5%

100%
Yes 100¢No 0¢
100¢
N/A
$1,487
N/A
N/A
$1,487
Settled
Yes
kalshi

Above 80%

0%
Yes 0¢No 100¢
100¢
N/A
$4,229
N/A
N/A
$2,731
Settled
No
kalshi

Above 82.5%

0%
Yes 0¢No 100¢
100¢
N/A
$2,768
N/A
N/A
$2,763
Settled
No
kalshi

Above 85%

0%
Yes 0¢No 100¢
100¢
N/A
$2,283
N/A
N/A
$2,273
Settled
No
Total markets: 9

Description

This event tracks the proportion of open versus closed token usage in a specific AI gateway system on a particular date. It reflects how much developers rely on openly accessible tools compared to proprietary solutions, offering insight into trends within software development practices.

Kalshi

All markets resolve based on the Open Weights percentage derived from Vercel AI Gateway's Open vs. Closed Token Volume chart, measured at 10:00 AM ET on September 19, 2026, for the trading day of September 18, 2026. Each market has a distinct threshold, ranging from above 65% to above 85%, which determines a 'Yes' outcome. Kalshi explicitly states it holds no affiliation with Vercel, and all trademarks remain property of their respective owners. The resolution relies solely on the publicly available chart data at the specified time, ensuring transparency and independence from external influences.

Frequently asked questions

On Kalshi, the dashboard for the open source market share tracks the current odds of various outcomes related to its future value. You’ll find a price history showing how expectations have shifted over time, as well as the 24-hour volume, which currently stands at $27,662. The total volume traded on this market is $27,662. This provides a real-time view of where traders believe the open source market share will land, reflecting collective intelligence on this evolving sector.

Currently, it's important to note that analyst forecasts for the open source market share vary considerably. Some predict continued growth, while others anticipate a slowdown due to increasing competition. This market allows you to compare those expectations against the wisdom of the crowd. If you find that the odds here significantly diverge from prevailing analyst opinions, it could indicate an opportunity to profit from a mispricing or a unique insight held by market participants. It’s a dynamic comparison, as both forecasts and market prices adjust over time.

On Kalshi, this market is priced through a continuous double auction, meaning traders buy and sell contracts representing different potential outcomes for the open source market share. The price of a contract reflects the probability of that outcome occurring, as perceived by the market participants. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. As more traders participate and new information becomes available, these prices will fluctuate, providing a constantly updated assessment of future expectations. The current price reflects the collective judgment of those trading on Kalshi.

This market resolves around Sep 26, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The resolution will be based on publicly available data concerning the open source market share at that time. Traders will be able to see how the final outcome aligns with their predictions, and contracts will be settled accordingly. The final value will be sourced from a reputable data provider specializing in technology market analysis, ensuring a transparent and objective determination of the result.

Several signals or events could significantly impact this market. Major announcements from leading open-source projects, shifts in corporate adoption of open-source technologies, and changes in government regulations related to software licensing could all move the odds. Unexpected security vulnerabilities or breakthroughs in competing technologies could also play a role. Additionally, broader economic trends and investor sentiment towards the technology sector will likely influence trading activity and, therefore, the price of contracts in this market.