the exchange is shut. the loan against it is not
tokenized SPY at 10pm on a saturday still needs a price, and maybe a buyer
the pricing part is solved.
@chainlink feeds now ship a session flag with the price, open, overnight or closed, so a contract knows the market is dark instead of trusting friday's last print
the exit part is not. a flag does not give you a haircut, and a weekend liquidation sells into onchain depth alone
that gap is a parameter, and parameters have owners. someone sets the LTV, and someone decides the saturday number is lower than the tuesday one
the oracle tells you the lights are off. someone still has to decide how much less you lend while they are