This is the lowest USDC has been at (0.91 USD at writing this comment), ever. So a test of the currency to say the least.

In perspective, Tether (USDT, another "stable coin") lowest was 0.91 USD at the 25th of April, 2017.

Another stable coin, DAI, is also at it's lowest point right now at 0.93 USD. DAI seems to have a big part of it's collateral in USDC, however that now makes sense...