> ## Documentation Index
> Fetch the complete documentation index at: https://help.arcus.xyz/llms.txt
> Use this file to discover all available pages before exploring further.

# What happens during off-market hours, weekends, and holidays?

Three things adjust automatically:

* Initial margin rises 50% (maintenance margin unchanged)
* Trading bands constrain price action
* Funding snaps to a fixed rate (SOFR + 0.5%) until reopen.

These rules apply to equities, commodity ETFs, and index ETFs; only crypto is unaffected.<br />These rules are driven by the trading hours of the underlying assets. US equity trading hours are typically  04:00–20:00 ET (pre- to post-market); Equity Perps and Stock Tokens stay tradeable throughout.

* The change in margin & the trading bands guard against potential manipulation when liquidity is thinner, by making it costlier for a potential attacker to move the market.
* The funding snaps to a fixed rate because there is no reliable external price to anchor to.

For the full read on How Arcus Handles Equity Perpetuals during Off Hours, [see here](https://arcus.xyz/blog/how-arcus-handles-equity-perps-outside-regular-trading-hours).