Infiniti Intelligence Hourly Briefing — Oct 13, 2026 · 7:54 AM ET

Polymarket’s open interest eased to $341M, while its daily trade count remained near 1.4M, in the latest snapshot published Oct 13, 2026, at 7:54 AM ET. The figures show a smaller pool of outstanding positions alongside a broadly steady pace of transactions.

Trading volume slips over the latest 30 days

According to defirate.com, Polymarket recorded $4.6B in contract trading over Sep 13-Oct 12, 2026. That activity represented $2.3B in dollars paid—a separate measure from the stated contract volume.

Polymarket accounted for 5% of prediction-market volume during that period, according to defirate.com. Its volume was down 7% from the preceding 30 days, providing a softer backdrop to the latest open-interest reading.

The measures capture different aspects of activity: open interest tracks outstanding positions, trade count measures transaction frequency, and volume reflects trading over a period. With no prior open-interest figure or daily trade-size breakdown supplied, the snapshot does not establish the size of the open-interest decline or explain what drove it.

What it means for prediction markets

• Transaction frequency is not the same as exposure. A daily trade count near 1.4M can coexist with easing open interest; it does not, by itself, indicate growth in outstanding positions.
• Volume comparisons need consistent units. The $4.6B contract figure and $2.3B in dollars paid describe the same reporting period but should not be treated as interchangeable.
• The snapshot is platform-level, not outcome-specific. The 7% volume decline and 5% market share offer activity context, but do not establish a change in any individual contract’s implied probability.

Novig has replaced American-style odds with percentage pricing on its sports prediction market, according to gamblerss.com. The change puts percentages at the center of how users view prices on the platform.

A different way to read prices

Co-founder and CEO Jacob Fortinsky also introduced an odds calculator, according to gamblerss.com. The available summary does not describe its features or explain how it works alongside the new pricing display.

The outlet frames the removal of American odds as an effort to increase Novig’s appeal to financial-market audiences. That is a positioning objective, rather than evidence that the change has attracted new users.

What remains unclear

The report was published on Oct 13, 2026, at 7:54 AM ET. With the full source text unavailable, the supplied material does not establish the rollout date or describe any accompanying changes to market mechanics.

What it means for prediction markets

• Price presentation is the central change: Novig’s sports prediction market now uses percentages instead of American-style odds.
• Audience positioning matters: According to gamblerss.com, the switch is intended to strengthen the platform’s financial-market appeal; the available material provides no adoption results.
• The scope is limited: The summary identifies a pricing-display change and an odds calculator, but does not establish changes to trading or settlement rules.