I believe we may have triggered a 'black swan' event with the GRIDCOIN MPA last thursday: https://cryptofresh.com/a/GRIDCOIN

With our forced settlement time being 7 days, perhaps this is why the price feeds haven't changed?

Black Swans - Extreme Market Conditions

All guarantees of SmartCoins are subject to the caveat that a SmartCoin can never be worth more than the collateral backing the least-collateralized short position. In normal market conditions, the value of the collateral is always more than sufficient, but, from time to time, markets can rapidly revalue the collateral. If this revaluation happens faster than the short positions can be forced to cover, then all SmartCoins are liquidated at the exchange rate of the least collateralized short position. This is similar to an insolvent bank converting its deposits to equity.