The delay in Polymarket's price recalibration lasts 80 minutes

Eighty minutes. This is the time it takes for Polymarket to fully digest important news and adjust the prices of its contracts to the correct level. This finding emerges from research that challenges the image of absolute speed associated with predictive markets: despite the blockchain infrastructure allowing for nearly instantaneous settlement, the delay in Polymarket's price recalibration remains significant, and it is not an isolated case but a structural feature of this type of platform.

Summary

• Key points
• Delay and slow reaction in Polymarket's price recalibration
  • The weight of initial underreaction
• Impact of liquidity and trader behavior on price efficiency
  • Why traders adjust prices only partially
• Trading volumes and market scrutiny
  • The case of bets related to Iran
• What it means for traders and market integrity
  • The limit of blockchain in closing the delay
• FAQ
  • How long does Polymarket take to fully reflect important news in prices?
  • Is the price adjustment delay specific to Polymarket?
  • What causes delays in price correction after news in predictive markets?
  • Has Polymarket faced scrutiny related to its trading activities?

Key points {#Key_points}

• Polymarket takes about 80 minutes to fully recalibrate prices after relevant news.
• The initial reaction covers only 64% of the correct movement, according to a coefficient calculated by researchers.
• Most of the correction occurs between 1 and 30 minutes after the news.
• A study from Stanford and Singapore Management University identified 821 accounts linked to price manipulations for $8.2 million.
• Polymarket has been subject to scrutiny for trades related to geopolitical events in Iran in early 2026.

Delay and slow reaction in Polymarket's price recalibration {#Delay_and_slow_reaction_in_Polymarket's_price_recalibration}

Polymarket's prices do not adjust immediately when important news arrives: complete recalibration takes on average about 80 minutes. This is a surprising interval for a platform that presents itself as a real-time forecasting tool, suggesting that the market processes information more like a hesitant human trader than a high-frequency algorithm.

The weight of initial underreaction {#The_weight_of_initial_underreaction}

A study on high-frequency activity in predictive market contracts calculated a reaction coefficient of about 0.64 compared to benchmark probabilities derived from public data. In practice, if news should move a contract by 10 percentage points, the price initially moves only by 6.4 points. The rest of the correction comes later, and according to collected data, it mainly concentrates in the window between 1 and 30 minutes after the news is released. This behavior is not limited to Polymarket: the same underreaction consistently appears across multiple predictive market platforms, indicating that it is a structural characteristic of the industry rather than a specific flaw of a single platform.

Impact of liquidity and trader behavior on price efficiency {#Impact_of_liquidity_and_trader_behavior_on_price_efficiency}

Poor liquidity exacerbates delays in predictive markets: when active traders are few, the gap between observed price and correct price widens, and correction times lengthen further.

Why Traders Only Partially Adjust Prices

The coefficient of 0.64 also reveals something about human behavior behind trades. Even those who react quickly to news do not seem to have full confidence in their assessment, or they are unwilling to deploy sufficient capital to push the price to fair value in one go. The result is a market that moves through small successive adjustments, gradually approaching equilibrium instead of reaching it immediately.

Trading Volumes and Market Scrutiny

The explosive growth in volumes has made this price behavior more visible—and more discussed. Trades on Polymarket increased during the 2024 U.S. election cycle and continued to rise throughout 2025 and 2026, bringing an increasingly broad and diverse user base to the platform.

The Case of Bets Related to Iran

In the early months of 2026, Polymarket came under scrutiny for some trades linked to geopolitical developments concerning Iran, with doubts raised by some observers about the possibility that some traders had access to information before its public dissemination. An academic study from Stanford University and Singapore Management University further highlighted concerns about market integrity, identifying 821 accounts whose trades were concentrated in settlement windows with statistical signals consistent with manipulation, for an estimated total gain of $8.2 million.

What It Means for Traders and Market Integrity

Systematic underreaction effectively creates an operational margin for those who move first: traders who manage to position themselves against the initial price right after news can capture value before the market completes the adjustment.

The Limitation of Blockchain in Closing the Delay

It is worth emphasizing a point often overlooked: blockchain infrastructure allows for nearly instantaneous settlement of transactions, but it does not eliminate the delay in price formation. The technical speed of settlement and the speed at which the market actually incorporates information are two different things, and collected data confirms that the latter remains much slower than the former.

FAQ

How long does Polymarket take to fully reflect important news in prices?

Polymarket takes about 80 minutes to fully recalibrate prices after a significant news event.

Is the delay in price adjustment specific to Polymarket?

No, underreaction is a structural feature observed across multiple predictive market platforms, not an aspect exclusive to Polymarket.

What causes delays in price correction after news in predictive markets?

Low liquidity and cautious behavior from traders, who initially move prices only partially and gradually adjust them, are the main causes of the delay.

Has Polymarket Been Subject to Scrutiny Related to Its Trading Activities? {#Polymarket_ha_subito_controlli_legati_alla_sua_attivita_di_trading}

Yes, Polymarket has been scrutinized for trades related to geopolitical events concerning Iran in the early months of 2026.

Content created with the assistance of artificial intelligence and human editorial review.