Skip to content
All library documents

How Futures Price Limits Can Affect Spot–Futures Alignment

Article Quant Q&A · Author: J. Chapman
Read the original

Summary

The document raises a market-structure question: when a futures exchange imposes daily price limits but the underlying spot market does not, can the two prices temporarily diverge? It asks whether that divergence would force a sharp futures adjustment when trading resumes and prices can move again.

No answer, data, or analysis is provided, so the proposed effect remains unresolved. The question highlights that price limits can constrain futures price discovery while related spot trading continues, but it does not establish that a mismatch must occur or predict the direction or size of any later adjustment. The outcome would depend on contract terms, market conditions, and how prices evolve during the limit period.

Key ideas

  • Daily price limits can restrict price movements in futures while the underlying spot market continues trading.
  • The document asks whether this can temporarily widen the gap between futures and spot prices.
  • It raises the possibility of a sharp futures adjustment after trading reopens but provides no evidence or answer.

Tags

FuturesSpot marketsMarket microstructure
Full text
# Do daily price limits on futures lead to loss of momentum in the spot price of the underlying asset?


# Do daily price limits on futures lead to loss of momentum in the spot price of the underlying asset?












I've just started reading Hull, which has made mention of price limits employed by futures exchanges 'to prevent large price movements caused by speculative excess [to protect the interests of producers]'.

Surely, since there are no price limits applied to spot markets, this would cause the price of the contract and its underlying asset to become temporarily mis-aligned? Would this not cause a crash in the futures market when trading re-opened the next day, and the futures price reconciled with the price of the underlying asset?

Shown in full with attribution under the source's licence. Licence: CC BY-SA 4.0 (Stack Exchange)

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.