They're banging them out every couple days now... https://www.cmegroup.com/content/dam/cmegroup/notices/clearing/2020/03/Chadv20-106.pdf OUCH!
ANOTHER round of margin increases. Key markets: YM, $10,670 --> $13,200 NQ, $13,200 --> $16,500 EMD, $14,850 --> $18,700 6A, $2,640 --> $3,300 6C, $1,155 --> $1,265 6E, $2,145 --> $2,365 RB, $5,900 --> $7,100 3-18-20 Limits 7% down 13% down 20% down ESM0 2342.50 2191.00 2014.00 NQM0 6914.75 6466.25 5943.00 YMM0 1961.40 1834.00 1685.00 RTYM0 1011.90 94550 86800